Mac: Instructions for installing and running LOTRO with OneLauncher

JohnMHammer

Well-known member
edit: Please see this message for notes about in-game option settings which might help you to work around some problems being caused by recent changes to the LOTRO client application which impact Macs (and Linux machines) which have small amounts of installed RAM: https://forums.lotro.com/index.php?...ning-lotro-with-onelauncher.24855/post-251035

===== ===== ===== ===== =====

To get a quick overview of all the different methods for running LOTRO on a Mac, see the first paragraphs of this thread:

What is WINE?
Wine Is Not an Emulator. Using WINE does not run Windows on your Mac nor is Windows installed on your Mac. From the user's perspective, it "tricks" Windows programs into thinking that they are running in Windows OS while "tricking" MacOS into thinking it is running a Mac program rather than a Windows program. Because there is much less back-end processing going on, more of your Mac's power can be used to run LOTRO rather than running an emulation environment and Windows itself, allowing LOTRO to run as well or better on your Mac as it would on a Windows computer with similar specs. Emulators do have better compatibility with a wider variety of Windows software but since LOTRO does work in WINE, it is the better choice for most Mac users.

What is OneLauncher?
You might know that June Stepp has for years maintained a free application called OneLauncher which is a replacement for the LOTRO and DDO installer and launcher applications. It also has a built-in manager for plugins, skins, and music. As of January 2026, OneLauncher includes complete support for MacOS.

OneLauncher will install a bespoke version of WINE which is specifically tuned to provide the best performance for LOTRO. It will then allow you to choose an existing LOTRO installation, even an old one or one copied from another computer – any other computer, even a Windows or Linux machine. Or you can choose to have OneLauncher perform a fresh installation of LOTRO.
–OneLauncher is easier to use than any other free form of WINE for installing and running LOTRO on a Mac, the process is as automated as possible.
–OneLauncher produces performance which is equivalent to the current version of Crossover (as of January 2026) which is a commercial product.
–Crossover will be updated more quickly in response to changes to MacOS and the LOTRO game client. It is much easier to adjust some of the WINE options using Crossover. And a Crossover subscription includes access to professional technical support. But Crossover is not free.

A- Download OneLauncher.
1- Go to lotrointerface.com, type "OneLauncher" into the search field at the upper-right of the screen, hit your return key. You will be brought to this page:
2- Do NOT click the big DOWNLOAD button on that page, that will download the Windows version of OneLauncher. You do not want the Windows version.
3- Scroll down to the "Description" text and look for the MacOS section.
4- If you have an Apple-CPU Mac (such as the various M-series), click on arm64 (Apple Silicon). If you have an Intel-CPU Mac, click on x86_64 (Intel). If you don't know what kind of CPU your Mac has, create a new thread of your own here in Technical Support and ask for help figuring it out.
edit: If you are booting MacOS Big 11 Sur or earlier you might need to use this special build of OneLauncher. Try the ones above first, if they don't work for you then try this one: https://drive.proton.me/urls/WC6NHZJXVC#TTHXX8aKhZbb or https://github.com/JuneStepp/OneLauncher/actions/runs/23115436076
5- When the download is complete you will find the OneLauncher application in your ~/Downloads folder (or wherever you have your web browser set to deposit downloads) and a .zip file in your Trash. You can empty the Trash if you wish.
6- Move the OneLauncher application to wherever you wish for it to be. I like /Applications/Games but you might prefer to move it to some other location such as ~/Applications/Games. OneLauncher will work no matter where you put it.
7- You might wish to drag OneLauncher down to the Dock so that no matter where you put it, you can launch it easily with a single click from the Dock.

B- Run OneLauncher for the first time.
1- Double-click the OneLauncher icon (or single-click it if in the Dock).
2- The OneLauncher icon will bounce in your Dock for what might seem to be a long time, at least several seconds. Your Mac will then complain that it can't verify OneLauncher.
OneLauncher-01.JPG

This is normal for any Mac application released by someone who isn't registered as a developer with Apple – which costs money and so many small developers choose to not register with Apple. Click the DONE button.
3- Go to System Settings->Privacy & Security. Scroll down to the SECURITY section. Look for ""OneLauncher" was blocked to protect your Mac." Click the OPEN ANYWAY button.
OneLauncher-02.JPG

4- A permissions dialogue will pop up asking if you are super-duper pinky-swear sure that you want to open OneLauncher. Click the OPEN ANYWAY button.
OneLauncher-03.JPG

5- You will be asked to enter your MacOS user account password. Enter it.
6- OneLauncher will open! And you will never have to go through this process again unless you download a replacement/new version of OneLauncher.
7- Whew! The hard part is done. You probably don't even need the rest of these instructions! But below are instructions you can follow if you wish.

C- One-time setup of OneLauncher.
1- Choose your preferred language then click the NEXT button.
OneLauncher-04.JPG

2- You now need to decide if you want to use an existing installation of LOTRO or download and install a fresh installation of LOTRO. If you have a working installation of LOTRO on your Mac already, there is no need to use the bandwidth to download 60gb of data or wait for a full installation to be performed, an existing installation will work just as well. If you have another computer with an existing installation of LOTRO, regardless whether it is a Mac or Windows or Linux machine, you can copy it over to your Mac. You can put it anywhere you like, your Mac and OneLauncher and LOTRO itself don't care where it is – even an external drive will work.
3- If you are installing from scratch, go to D. If you are going to use an existing installation, go to E.
OneLauncher-05.JPG


D- Installing LOTRO from scratch.
1- Click the INSTALL NEW GAME button then click on The Lord of the Rings Online. Note that you can choose to install the "Public Preview" version also known as the Bullroarer version – do not do this unless you wish to play only on the Bullroarer test server. You can always install the "Public Preview" version later. For now, install the "normal" version of The Lord of the Rings Online. Note that you can also install Dungeons & Dragons Online, I will not be covering that in this thread but the process is pretty much the same. You can install DDO and its "Public Preview" version later, too.
2- In the INSTALL DIRECTORY section you can choose where you want the game to be installed. This can be anywhere on your boot volume or even on an external drive. Keep in mind that LOTRO requires about 60gb as of January 2026. The default location is ~/Library/Application Support/onelauncher/games/ed270458-b0e1-4fe8-b656-c49808034cdb-LOTRO/game_install but I prefer to use /Applications/Games.
OneLauncher-06.JPG

If you wish to use a different location, click the folder icon to the right of the INSTALL DIRECTORY field then navigate to the location you wish to use. As you can see in the screenshot, I chose /Applications/Games/OneLauncher LOTRO – I had to create the OneLauncher LOTRO folder.
3- Click the INSTALL GAME button.
4- A brief download process will occur. When it's done, click the NEXT button.
5- Click the FINISH button.
6- You will now see the main OneLauncher login screen. Neither WINE nor LOTRO are installed yet! Note that OneLauncher tells you, "The game needs to be patched. That can be done from the dropdown menu on the Play button."
7- Choose the game world to which you wish to log in, enter your account name and password, decide if you want OneLauncher to save your account name and/or password (doing so is faster and easier every time you want to play but is less secure because anyone who sits down in front of your computer will be able to log in using your saved credentials).
8- Click the little down-arrow to the right of the PLAY button and choose to PATCH.
OneLauncher-07.JPG

9- A blank window will appear. Click the PATCH button near the bottom of the window.
10- You will see WINE being downloaded. WINE will be installed. When WINE is complete the download and installation of the game will begin. If you see some red text on the screen complaining that something couldn't be downloaded you can safely ignore that, the download will be reattempted until it is complete. As long as you continue to see progress in the window, please do NOT click the ABORT button. Allow the installation to complete.
OneLauncher-08.JPG

11- Have patience, this is a big installation. Some people with very good Internet and a good connection to LOTRO's installation servers might get it done in 30 minutes, for others it requires a couple of hours, some people require many hours/overnight, and some folks even need several days. This has nothing to do with OneLauncher and everything to do with the amount of data that has to be downloaded, your network, and how well your network is able to communicate with LOTRO's installation servers.
12- When done, you can click the PLAY button. OneLauncher might tell you a second time that "The game needs to be patched. That can be done from the dropdown menu on the Play button." If so, do it again. This will be LOTRO patching itself to the current version so you can log in and play.
13- When that's done, you can click the PLAY button and... play the game!
14- If you are asked to grant permission to access a folder such as DOCUMENTS or to use your microphone, you MUST grant those permissions. You will be asked for permissions only the first time you use OneLauncher to run LOTRO.
OneLauncher-09.JPG


E- Using an existing installation of LOTRO.
1- Click the ADD EXISTING GAME button.
2- Navigate to your StandingStoneGames/The Lord of the Rings Online folder. I can't tell you exactly where this will be. I have an existing installation of LOTRO which I created with Crossover and I chose to have Crossover put it in ~/Applications/CrossOver Bottles/Bottles/LOTRO/drive_c/Program Files (x86)/StandingStoneGames/The Lord of the Rings Online. You might have yours inside an application package/wrapper so maybe something like /Applications/Games/The Lord of the Rings Online/Contents/SharedSupport/prefix/drive_c/Program Files (x86)/StandingStoneGames/The Lord of the Rings Online. Wherever it is, find that The Lord of the Rings Online folder and point OneLauncher to it.
3- There is no Step 3 (just trying to get the steps in E to match as closely as possible with the steps in D).
4- Click the NEXT button.
5- Click the FINISH button.
6- You will now see the main OneLauncher login screen. WINE is not installed yet!
7- Choose the game world to which you wish to log in, enter your account name and password, decide if you want OneLauncher to save your account name and/or password (doing so is faster and easier every time you want to play but is less secure because anyone who sits down in front of your computer will be able to log in using your saved credentials).
8- Click the PLAY button. If your existing installation of LOTRO hasn't been run in a while, it will probably need to be patched. If so, proceed to Step 9. If OneLauncher doesn't tell you that the game needs to be patched, proceed to Step 10.
9- Click the little down-arrow to the right of the PLAY button and choose to PATCH. A blank window will appear. Click the PATCH button near the bottom of the window. Go to Step 11.
10- You will see WINE being downloaded. WINE will be installed. When WINE is complete the game client will be launched. Go to Step 14.
11- You will see WINE being downloaded. WINE will be installed. Then LOTRO will be updated. If your existing LOTRO installation requires patching, it might be quick if you used it recently or it could require a lot of data to be downloaded and a lot of install time if you haven't used it in a long while. Just let it complete if patching is necessary.
12- When done, you can click the PLAY button. OneLauncher might tell you a second time that "The game needs to be patched. That can be done from the dropdown menu on the Play button." If so, do it again. This will be LOTRO patching itself to the current version so you can log in and play.
13- When that's done, you can click the PLAY button and... play the game!
14- If you are asked to grant permission to access a folder such as DOCUMENTS or to use your microphone, you MUST grant those permissions. You will be asked for permissions only the first time you use OneLauncher to run LOTRO.

Notes:

–OneLauncher will work with any version of MacOS from MacOS 10.15.8 Catalina or later. It will not work when booted into any earlier version of MacOS. Before using OneLauncher or any other form of WINE to run LOTRO on your Mac, you should update to the latest release of your version of MacOS. For example, if you are running MacOS Tahoe 26.1 you should update to MacOS Tahoe 26.5.2 (which is the latest version of Tahoe as of the moment I am writing this, 17 July 2026).

–The first time you log a character into a game world you will probably notice very low frame rates and some stuttering. This will "settle down" after a few seconds or at most a few minutes. This should happen only one time, not every time you log in a character or every time you launch LOTRO. This is pretty normal for games running in WINE, once textures are cached in the WINE prefix the game will run smoothly.

–You will find potentially useful options in OneLauncher's preferences panel but if you just want to play LOTRO and are satisfied with where OneLauncher puts everything by default and how it behaves, you can ignore the preferences entirely. For example, you can use OneLauncher's preferences panel to set the OneLauncher application to hide itself while the client is running and to close itself after the client is closed. This is the "normal" launcher application's default behavior so if you usually run only one instance of the game client at a time this is an option you might choose to use to keep the OneLauncher window out of your way while you're playing the game.
OneLauncher-10.JPG

Check the box for CLOSE ONELAUNCHER WHEN A GAME IS STARTED.

–You can use OneLauncher's preferences panel to run the "normal" LOTRO launcher application, LotroLauncher.exe. There should be no special reason to do so, but that option is available if you wish to use it.

–OneLauncher automatically sets your game client to run in Full Screen Windowed mode. If you prefer to use Full Screen mode or Windowed mode, you can do so after you run LOTRO with OneLauncher for the first time, just use LOTRO's in-game OPTIONS panel to make that change if you wish to do so. I suggest that you use Full Screen Windowed mode unless you have some special reason to not do so.

–OneLauncher automatically sets your game client to use DirectX 11. OneLauncher installs and configures DXVK for you as part of its WINE installation. You must use LOTRO's in-game setting for DirectX 11 with DXVK.

–See https://forums.lotro.com/index.php?...ning-lotro-with-onelauncher.24855/post-251035 if your Mac has only 8gb or 4gb of RAM and you are experiencing crashes, you might be able to work around this problem by disabling LOTRO's Frills options or reducing other graphics settings.

–Please be alert for any requests for permissions related to your Documents folder or your microphone. The LOTRO game client will not run, or will not run correctly, without these permissions. You must grant these permissions when they are requested. You should be asked for each permission only once.

–OneLauncher creates its WINE prefix (the folder where all the WINE stuff is saved) here:
~/Library/Caches/onelauncher

–OneLauncher creates its preferences folder here:
~/Library/Application Support/onelauncher

–If you would like help with OneLauncher or any other technical issue related to LOTRO, please create your own thread here in Technical Support. Please do not reply to this thread, create your own thread.
 
Last edited:

JohnMHammer

Well-known member
===== ===== ===== ===== =====
Message #2 in this thread reserved for future use.
===== ===== ===== ===== =====
 

garsans

New member
Hello! I got a 2023 MacBook Air recently with 8GB of ram and an M2 Chip and followed your guide, but am having an issue where the game doesn't ever open. I have gotten OneLauncher to work and have installed and patched, but every time after clicking play the launcher closes and the game never loads. The log on OneLauncher says Starting Game too. I made sure that I am on the most recent update, trusted and gave permissions to OneLauncher, have restarted my Mac a few times but I can't figure out what's wrong. When I installed I even named my files the same way, placing it in Applications and then a Games folder. Any ideas you have that I can try would be greatly appreciated! Thank you!
 

frostylotro

New member
Gem of a post, thank you. My old Windows PC I used for LotRO died months ago and I decided not to replace it, sticking to just Mac from now on. Figured this was just another game I would have to give up on, but surprise, the one time I randomly decide to google this up posts this awesome post.
 

JohnMHammer

Well-known member
Hello! I got a 2023 MacBook Air recently with 8GB of ram and an M2 Chip and followed your guide, but am having an issue where the game doesn't ever open. I have gotten OneLauncher to work and have installed and patched, but every time after clicking play the launcher closes and the game never loads. The log on OneLauncher says Starting Game too. I made sure that I am on the most recent update, trusted and gave permissions to OneLauncher, have restarted my Mac a few times but I can't figure out what's wrong. When I installed I even named my files the same way, placing it in Applications and then a Games folder. Any ideas you have that I can try would be greatly appreciated! Thank you!
I can see you're a new forum member so maybe you can't create new threads of your own as I requested in the first message:
–If you would like help with OneLauncher or any other technical issue related to LOTRO, please create your own thread here in Technical Support. Please do not reply to this thread, create your own thread.
I don't want this thread filled with support requests from individual players which often require extended back-and-forth messages to reach a resolution. That tends to bury important information intended for everyone. If you can't create your own new thread, please send a PM to me.
–Start by confirming that you downloaded the arm64 (Apple Silicon) version, not the x86_64 (Intel) version.
–Go to ~/Documents/The Lord of the Rings Online/UserPreferences.ini, open UserPreferences.ini with TextEdit, look for the line GraphicsCore=X where X is D3D9, D3D10, or D3D11. If it is anything other than D3D11, please change it to D3D11 and then SAVE the file and QUIT out of TextEdit.
–Please tell me the exact version of MacOS you are booting.

edit: Forum member garsans's issue has been resolved.
 
Last edited:

Lifto

Well-known member
Love OneLauncher, have been using it for several months. I actually like the fact that it remembers my username and password. Smooth launches and great performance. One little issue I encountered...on patch day, if you choose to just launch the game, it does not automatically patch. However, there is a "patch" option on the launcher. I just discovered it last Wednesday. Otherwise, I started the game in Crossover to patch it, no longer any need to do so.
 

JohnMHammer

Well-known member
Love OneLauncher, have been using it for several months. I actually like the fact that it remembers my username and password. Smooth launches and great performance. One little issue I encountered...on patch day, if you choose to just launch the game, it does not automatically patch. However, there is a "patch" option on the launcher. I just discovered it last Wednesday. Otherwise, I started the game in Crossover to patch it, no longer any need to do so.
Right! You can patch using the "patch" option in OneLauncher as described above in Steps D6 and E9. Or you can go to OneLauncher's options and choose to run the normal launcher, LotroLauncher.exe, to do the patching. Either will get the job done, no need to use some other WINE distribution.
 

Ragdall

Member
Hi, I just installed Lotro via OneLauncher on my new mac and the game started up correctly (thanks to your guide!). But I noticed that the OneLauncher starting window doesn't have the "Transfer" button. Do you know if there's another way to transfer my old characters (Crick) to the new servers? Thanks!
 

Ragdall

Member
Hi, I just installed Lotro via OneLauncher on my new mac and the game started up correctly (thanks to your guide!). But I noticed that the OneLauncher starting window doesn't have the "Transfer" button. Do you know if there's another way to transfer my old characters (Crick) to the new servers? Thanks!
solved
 

JohnMHammer

Well-known member
Hi, I just installed Lotro via OneLauncher on my new mac and the game started up correctly (thanks to your guide!). But I noticed that the OneLauncher starting window doesn't have the "Transfer" button. Do you know if there's another way to transfer my old characters (Crick) to the new servers? Thanks!
Unfortunately, you didn’t read all the instructions:
–If you would like help with OneLauncher or any other technical issue related to LOTRO, please create your own thread here in Technical Support. Please do not reply to this thread, create your own thread.

Or this part:
–You can use OneLauncher's preferences panel to run the "normal" LOTRO launcher application, LotroLauncher.exe. There should be no special reason to do so, but that option is available if you wish to use it.

I gave you a thorough answer in the thread you started here: https://forums.lotro.com/index.php?threads/mac-onelauncher-has-no-transfer-button.25708/
Interesting, someone asked this same question on Reddit earlier today: https://www.reddit.com/r/lotro/comments/1ro8byw/_/o9cdigv Maybe the OP of that thread is you.

As I explain in the instructions for OneLauncher in the Technical Support subforum https://forums.lotro.com/index.php?...ing-and-running-lotro-with-onelauncher.24855/
–You can use OneLauncher's preferences panel to run the "normal" LOTRO launcher application, LotroLauncher.exe. There should be no special reason to do so, but that option is available if you wish to use it.
transfer-characters-to-new-servers-while-on-mac-v0-qvc9gdp4rung1.jpeg
 

Húroin

Well-known member
Hi. I've been trying for a while to get One Launcher to run, but whenever I go to my "Security" page and accept that I trust the application and click "Open Anyway", nothing happens. After this, clicking the application Icon (or hotbar icon) don't do anything. It just jumps once, then nothing.

Trying to install on a 2014 iMac (Intel) running BigSur 11.7.10. (As I run on 11, my setup prompts and security panel looks a little different than the example in the post.)

Any help is appreciated!

EDIT: After further research I suspect this is a MacOS compability issue. Is there any way to run OneLauncher on MacOS 11? (The dreaded ChatGPT told me after checking my terminal numbers, that the downloaded version is not compatible with any OS older than 15)
 
Last edited:

JohnMHammer

Well-known member
Húroin, I'm happy to help, but I'd be happier if you'd start your own thread when you have a question. As I requested in the OP above:
–If you would like help with OneLauncher or any other technical issue related to LOTRO, please create your own thread here in Technical Support. Please do not reply to this thread, create your own thread.
The point is to make technical problems and solutions searchable and not buried in a larger thread with, potentially, multiple topics; and to keep the instructional thread as clean as possible for people reading it for the first time.

OneLauncher should work with any version of MacOS from MacOS 10.15 Catalina through to what is the latest as I write this, MacOS 26.3.1 Tahoe. I did not test it with every release of MacOS between those two but there is nothing about the application or the WINE it installs which should require anything later than Catalina. Could you tell me what "terminal numbers" you provided to ChatGPT?

Your issue is almost certainly related to permissions and/or Gatekeeper. We should be able to resolve that this way:
1- Fully delete OneLauncher. To do so, drag the following things to the Trash:
a- The OneLauncher application, from wherever you chose to put it.
b- ~/Library/Caches/onelauncher
c- ~/Library/Application Support/onelauncher
d- If you still have the .zip file you downloaded, get rid of that, too.
Then empty the Trash.
2- Restart your Mac.
3- Launch the Terminal application.
4- Type this into the Terminal then hit your RETURN key:
sudo spctl --master-disable
You will be asked to enter your Mac user account password and then Gatekeeper will be disabled. You can quit out of the Terminal as soon as the command has completed executing.
5- Open System Preferences->Security & Privacy, look for the ALLOW APPS DOWNLOADED FROM section, and choose ANYWHERE. It might already be selected for you, which is fine. You can then quit out of System Preferences.
6- Restart your Mac.
7- Download this version of OneLauncher, it is for Intel-CPU Macs. The ARM-CPU/Apple-CPU version will not work on your Mac:
8- Extract the OneLauncher application from the zip file if that wasn't done for you automatically, put it somewhere sensible.
9- When you run OneLauncher, it should just start right up. You might be asked to give permissions for it to access your ~/Documents folder and/or your microphone but other than that it should just start. Grant the permissions in the little dialogue boxes that pop up, you do not need to go to System Preferences to do so.
10- Once you have OneLauncher running and have used it to play LOTRO, all is working right, etc. you can enable Gatekeeper again by running this Terminal command:
sudo spctl --master-enable
And then restart your computer.

Just FYI, MacOS 11 Big Sur has not received security updates since September 2023. That's 2.5 years which is about 1.5 years longer than I'd be comfortable with. Big Sur is no longer secure enough for anything which involves sending passwords back and forth and certainly not for any financial transactions. (I know that most people have a higher tolerance for security risks than I do.) You might consider upgrading your OS to MacOS 15 Sequoia using https://dortania.github.io/OpenCore-Legacy-Patcher/ Sequoia will continue to get security updates through the fall of 2027 and should remain tolerable for online transactions through the end of 2028. I have used OCLP on many old Macs and I have used it to install Sequoia on many old Macs – as long as a Mac has a quad-core or better Intel CPU and 8gb or more of RAM, Sequoia runs well especially if the Mac also has a discrete video card rather than integrated graphics.
 

Húroin

Well-known member
Húroin, I'm happy to help, but I'd be happier if you'd start your own thread when you have a question. As I requested in the OP above:

Many thanks for your input John. Sorry for missing the separate thread thing.

I have now done every step of your instruction, but it still will not run. When I now tried to start it after following the steps, the icon started bouncing for a while (as on previous attempts) and after a little while I got a prompt asking if I "Really wanted to Open the application". After pressing Yes/Open, nothing happens. After this, as before, clicking the application icon does nothing. No bouncing in the hotbar, nothing. Just dead.

Regarding the terminal text that CGPT asked for, here it is:

Last login: Fri Mar 13 19:00:07 on console

mac@MYNAME-iMac ~ % xattr -dr com.apple.quarantine /LOTRO One Launcher/OneLauncher.app

xattr: No such file: /LOTRO

xattr: No such file: One

xattr: No such file: Launcher/OneLauncher.app

mac@MYNAME-iMac ~ % xattr -dr com.apple.quarantine/Applications/LOTRO\ One\ Launcher/onelauncher.app

mac@MYNAME-iMac ~ % /Applications/LOTRO\ One\ Launcher/onelauncher.app

zsh: permission denied: /Applications/LOTRO One Launcher/onelauncher.app

mac@MYNAME-iMac ~ % chmod +x/Applications/onelauncher.app/Contents/MacOS/onelauncher.bin

usage: chmod [-fhv] [-R [-H | -L | -P]] [-a | +a | =a [# [ n]]] mode|entry file ...

chmod [-fhv] [-R [-H | -L | -P]] [-E | -C | -N | -i | -I] file ...

mac@MYNAME-iMac ~ % /Applications/onelauncher.app/Contents/MacOS/onelauncher.bin

PySide6/__init__.py: Unable to import Shiboken from : dlopen(/Applications/onelauncher.app/Contents/MacOS/shiboken6/Shiboken.so, 2): Symbol not found: __ZTTNSt3__114basic_ofstreamIcNS_11char_traitsIcEEEE

Referenced from: /Applications/onelauncher.app/Contents/MacOS/libshiboken6.abi3.6.10.dylib (which was built for Mac OS X 15.0)

Expected in: /usr/lib/libc++.1.dylib

in /Applications/onelauncher.app/Contents/MacOS/libshiboken6.abi3.6.10.dylib

Traceback (most recent call last):

File "/Applications/onelauncher.app/Contents/MacOS/onelauncher/__main__.py", line 1, in <module>

File "/Applications/onelauncher.app/Contents/MacOS/onelauncher/cli.py", line 27, in <module onelauncher.cli>

File "/Applications/onelauncher.app/Contents/MacOS/onelauncher/main.py", line 4, in <module onelauncher.main>

File "/Applications/onelauncher.app/Contents/MacOS/PySide6/__init__.py", line 143, in <module PySide6>

File "/Applications/onelauncher.app/Contents/MacOS/PySide6/__init__.py", line 66, in _setupQtDirectories

File "/Applications/onelauncher.app/Contents/MacOS/shiboken6/__init__.py", line 27, in <module shiboken6>

ImportError: dlopen(/Applications/onelauncher.app/Contents/MacOS/shiboken6/Shiboken.so, 2): Symbol not found: __ZTTNSt3__114basic_ofstreamIcNS_11char_traitsIcEEEE

Referenced from: /Applications/onelauncher.app/Contents/MacOS/libshiboken6.abi3.6.10.dylib (which was built for Mac OS X 15.0)

Expected in: /usr/lib/libc++.1.dylib

in /Applications/onelauncher.app/Contents/MacOS/libshiboken6.abi3.6.10.dylib

mac@MYNAME-iMac ~ %
 

JohnMHammer

Well-known member
I have now done every step of your instruction, but it still will not run. When I now tried to start it after following the steps, the icon started bouncing for a while (as on previous attempts) and after a little while I got a prompt asking if I "Really wanted to Open the application". After pressing Yes/Open, nothing happens. After this, as before, clicking the application icon does nothing. No bouncing in the hotbar, nothing. Just dead.

Regarding the terminal text that CGPT asked for, here it is:

<clip>
The full meaning of that Terminal output is over my pay grade, I'm afraid. It is possible that there is something about MacOS 11 Big Sur which is preventing OneLauncher from running. It does look like your machine's Python is missing something required by OneLauncher.

Considering that Big Sur is completely unsupported at this point, I don't think it's worth my time to do independent testing or for the OneLauncher author, June Stepp, to make any OS-specific fixes so that OneLauncher will run in Big Sur. It is also possible that there is just some issue with your specific system; again, I don't have the level of expertise needed to parse your Terminal output to determine that.

I would suggest either upgrading your Mac to the latest version of MacOS 15 Sequoia using OCLP or using an alternate form of WINE to run LOTRO. If you choose the latter then as always, Crossover is best but it is not free. Your best free choice after OneLauncher is Sikarugir, there are full instructions for getting LOTRO going with Sikarugir here: https://forums.lotro.com/index.php?...ith-porting-kit-and-sikarugir.3247/post-32228

I'm sorry I can't be more help but I don't have time to test and develop tweaks for every form of WINE to work with LOTRO in every version of MacOS and in this case I can't even be 100% sure that the reason for your problem isn't something specific to your system rather than a failure of OneLauncher and MacOS 11 Big Sur to work together properly.
 

Húroin

Well-known member
The full meaning of that Terminal output is over my pay grade, I'm afraid. It is possible that there is something about MacOS 11 Big Sur which is preventing OneLauncher from running. It does look like your machine's Python is missing something required by OneLauncher.

Considering that Big Sur is completely unsupported at this point, I don't think it's worth my time to do independent testing or for the OneLauncher author, June Stepp, to make any OS-specific fixes so that OneLauncher will run in Big Sur. It is also possible that there is just some issue with your specific system; again, I don't have the level of expertise needed to parse your Terminal output to determine that.

I would suggest either upgrading your Mac to the latest version of MacOS 15 Sequoia using OCLP or using an alternate form of WINE to run LOTRO. If you choose the latter then as always, Crossover is best but it is not free. Your best free choice after OneLauncher is Sikarugir, there are full instructions for getting LOTRO going with Sikarugir here: https://forums.lotro.com/index.php?...ith-porting-kit-and-sikarugir.3247/post-32228

I'm sorry I can't be more help but I don't have time to test and develop tweaks for every form of WINE to work with LOTRO in every version of MacOS and in this case I can't even be 100% sure that the reason for your problem isn't something specific to your system rather than a failure of OneLauncher and MacOS 11 Big Sur to work together properly.

I understand, and thank you for your effort once again. I have LOTRO running on the old PortingKit and it's OK with DirectX10, but I would like to try out OneLauncher. I'll post the terminal info on the thread I created on the LOTRO Interface forums also. If there's something wrong on my side I will try to do the OCLP update, I just hope that it won't mess up everything. :)
 
Last edited:

JuneStepp

New member
The full meaning of that Terminal output is over my pay grade, I'm afraid. It is possible that there is something about MacOS 11 Big Sur which is preventing OneLauncher from running. It does look like your machine's Python is missing something required by OneLauncher.

Considering that Big Sur is completely unsupported at this point, I don't think it's worth my time to do independent testing or for the OneLauncher author, June Stepp, to make any OS-specific fixes so that OneLauncher will run in Big Sur. It is also possible that there is just some issue with your specific system; again, I don't have the level of expertise needed to parse your Terminal output to determine that.

I would suggest either upgrading your Mac to the latest version of MacOS 15 Sequoia using OCLP or using an alternate form of WINE to run LOTRO. If you choose the latter then as always, Crossover is best but it is not free. Your best free choice after OneLauncher is Sikarugir, there are full instructions for getting LOTRO going with Sikarugir here: https://forums.lotro.com/index.php?...ith-porting-kit-and-sikarugir.3247/post-32228

I'm sorry I can't be more help but I don't have time to test and develop tweaks for every form of WINE to work with LOTRO in every version of MacOS and in this case I can't even be 100% sure that the reason for your problem isn't something specific to your system rather than a failure of OneLauncher and MacOS 11 Big Sur to work together properly.
Their issue was solved after discussion on lotrointerface:
It looks like potentially an issue with some of OneLauncher's dependencies no longer supporting macOS 11. It would be best for you to upgrade your system, but I've also created a build that may work for you. You can download it from https://github.com/JuneStepp/OneLaun...ns/23115436076. Note that you have to be logged into GitHub for the downloads on that page to work. Alternatively I've also uploaded it here.
I provide no guarantees of working builds like this in the future, but feel free to ask if you can't upgrade your system for some reason.

Also, hi! I finally got forums registration to work.
 

JohnMHammer

Well-known member
Note for users of MacOS 11 Big Sur and earlier:

–You really should upgrade your OS, even if your Mac is too old for MacOS 15 Sequoia you can install Sequoia easily using OpenCore Legacy Patcher. Unless your Mac is truly old (2010 and earlier) or very low-spec (less than 8gb of RAM or one of the terribly underpowered Intel-CPU MacBook Airs), Sequoia will run well and won't have the security concerns or compatibility issues that much older versions of MacOS will have.

–If you can't upgrade your OS then you might need to use a different version of OneLauncher. The OneLauncher author, June Stepp, has created a version specifically for MacOS 11 and earlier. You can download it here https://drive.proton.me/urls/WC6NHZJXVC#TTHXX8aKhZbb or here https://github.com/JuneStepp/OneLauncher/actions/runs/23115436076. I have edited in a note and links to Message #1's instructions. Húroin resolved his issue (Messages #11-15 above) by using this version of OneLauncher.

You really should upgrade your OS unless you have a very good reason not to do so. On my Intel-CPU 2019 21.5" iMac, I keep both a MacOS 10.14 Mojave boot volume and a MacOS 15 Sequoia boot volume (both in the same partition in different APFS volumes) so that I can use the Mac safely and with maximum compatibility most of the time when booted into Sequoia but when I need to run an old 32-bit MacOS-native application I can still do so by booting into Mojave. You can do something similar with your Mac, keeping your current old OS available as a backup while trying Sequoia (or the current latest version of MacOS if you have an Apple-CPU Mac, the latest as I write this is MacOS 26 Tahoe).

edit: Hi there, June! You're awesome, thanks for creating a special build of OneLauncher to help Húroin!
 
Last edited:

Húroin

Well-known member
Note for users of MacOS 11 Big Sur and earlier:

–You really should upgrade your OS, even if your Mac is too old for MacOS 15 Sequoia you can install Sequoia easily using OpenCore Legacy Patcher. Unless your Mac is truly old (2010 and earlier) or very low-spec (less than 8gb of RAM or one of the terribly underpowered Intel-CPU MacBook Airs), Sequoia will run well and won't have the security concerns or compatibility issues that much older versions of MacOS will have.

–If you can't upgrade your OS then you might need to use a different version of OneLauncher. The OneLauncher author, June Stepp, has created a version specifically for MacOS 11 and earlier. You can download it here https://drive.proton.me/urls/WC6NHZJXVC#TTHXX8aKhZbb or here https://github.com/JuneStepp/OneLauncher/actions/runs/23115436076. I have edited in a note and links to Message #1's instructions. Húroin resolved his issue (Messages #11-15 above) by using this version of OneLauncher.

You really should upgrade your OS unless you have a very good reason not to do so. On my Intel-CPU 2019 21.5" iMac, I keep both a MacOS 10.14 Mojave boot volume and a MacOS 15 Sequoia boot volume (both in the same partition in different APFS volumes) so that I can use the Mac safely and with maximum compatibility most of the time when booted into Sequoia but when I need to run an old 32-bit MacOS-native application I can still do so by booting into Mojave. You can do something similar with your Mac, keeping your current old OS available as a backup while trying Sequoia (or the current latest version of MacOS if you have an Apple-CPU Mac, the latest as I write this is MacOS 26 Tahoe).
Thanks for updating the thread. Regarding updating the OS, do I have to re-install all apps in the new (Squoia) partition?
 

JohnMHammer

Well-known member
Thanks for updating the thread. Regarding updating the OS, do I have to re-install all apps in the new (Squoia) partition?
Not for testing, no. You can launch applications located on the Big Sur volume while booted to the Sequoia volume.

Once you have tested everything, and are satisfied that things will work satisfactorily or you can live without/replace the things that don’t; you can delete the Sequoia test volume (APFS volume, not a different partition) and then upgrade your Big Sur installation to Sequoia. There is no special value in keeping a Big Sur boot volume unless there is an app or two that you can’t live without or replace which won’t run in Sequoia.
 

JohnMHammer

Well-known member
2026-06-27

As of today, LOTRO as run by OneLauncher for Mac will crash about 1 minute after loading a character into a game world. This is an issue with recent updates to the LOTRO client application and the DXVK backend used by the WINE wrapper created by OneLauncher. I have contacted the OneLauncher author, June Stepp, and will remove this note and make changes as necessary to the instructions after this has been corrected.

I have not yet been able to test with my Intel-CPU iMac so it is possible that Intel-CPU Macs are not being impacted by this issue.

=====
edit 2026-07-17: This has been corrected with the latest builds of OneLauncher. Get the latest version from the links at lotrointerface.com.
=====
 
Last edited:
Top