Not able to install LM Runtime after upgrading to version LM Studio 0.3.6 (Build8) under MacOS 15.2 (M4 Apple Silicon)

[Oliver-Fischer]

After upgrading to version 0.3.6 (from 0.3.5) it is not possible to install any LM Runtime. I can download Metal llama.cpp v1.7.1 as well as LM Studio MLX v0.1.3, but they are not installed and therefor it is not possible to run any of my downloaded llms.

[HelpfulScripts]

Exact same issue here.
Is there a link to roll back to 0.3.5?

[yagil]

Hello, please try the following steps:

We think this happens when you run the app from the .dmg window and not from /Applications the first time you run it.

Here's how to solve it (Mac only):

1. close LM Studio, make sure it's not running from the tray either
2. remove it from /Applications on your Mac (i.e. uninstall it)
3. run one of the following commands in your Terminal

If this is the first time you installed LM Studio

rm -rf ~/.lmstudio/extensions

If you've updated LM Studio

rm -rf ~/.cache/lm-studio/extensions

4. Reinstall the app from the installer you downloaded by dragging it into the /Applications folder
5. Open it from the /Applications folder <------ very important

[HelpfulScripts]

Thank you! Removing the extensions in ~/.cache seems to have solved it (I'm prettty sure I started from Applications before)
Loading runtimes now works again; and model loading as well
👍

[namp]

The solution does not work for me. Removed the extensions folder and reinstalled countless times and still the same issue. Runtimes are downloaded but never installed.

M1 Max 64GB, Sonoma 15.2

Hello, please try the following steps:

We think this happens when you run the app from the .dmg window and not from /Applications the first time you run it.

Here's how to solve it (Mac only):

1. close LM Studio, make sure it's not running from the tray either
2. remove it from /Applications on your Mac (i.e. uninstall it)
3. run one of the following commands in your Terminal

If this is the first time you installed LM Studio

rm -rf ~/.lmstudio/extensions

If you've updated LM Studio

rm -rf ~/.cache/lm-studio/extensions

4. Reinstall the app from the installer you downloaded by dragging it into the /Applications folder
5. Open it from the /Applications folder <------ very important

[yagil]

@namp while it's not impossible there's another issue, so far the workaround worked for everyone, so my guess would be you may have missed a step or did not do it exactly. Can you please try again?

[namp]

llama.cpp runtime (1.7.1) again just downloads and does not try to install at all.

However I noticed that mlx 0.1.3 hangs after download with the following error:

Error: Process error: spawn /Users/nikos/.cache/lm-studio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac-arm64@11/bin/python EACCES Command: /Users/nikos/.cache/lm-studio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac-arm64@11/bin/python -I /Users/nikos/.cache/lm-studio/extensions/backends/vendor/_amphibian/app-mlx-generate-mac-arm64@11/postinstall.py Error output:

Nevertheless some files have been created in the extensions dir. The only thing that I can think of as potential source of problem is that my ~/.cache is a symbolic link to an external storage disk

[yagil]

@namp thanks for the extra info. The workaround procedure should solve this exact thing. As I said there may be an additional issue we’re not aware of yet, but I’m currently guessing it’s due to missing a step or not doing it exactly as written

[namp]

Thank you for your support. However there's no doubt that I follow the exact steps as described. I even remove any previous installations in /Applications with AppCleaner so as to make sure nothing remains.

Unfortunately I'll have to revert back to 3.0.5 and hope for a new build which might solve the issue

[yagil]

@namp want to hop on the discord and tag me? I’ll debug with you live https://discord.gg/aPQfnNkxGC

[yagil]

For new folks finding this issue, the fix that works for most people is here: #294 (comment)

[blokhin]

I can confirm simple deletion of extensions folder and restarting the app helps.

[namp]

@namp want to hop on the discord and tag me? I’ll debug with you live https://discord.gg/aPQfnNkxGC

@yagil Much appreciated but I seem to have missed the invitation time window. Please let me know if you'll be available again.

[namp]

SOLVED IT. Indeed the problem was that .cache was a symbolic link to an external drive. As soon as lmstudio was installed from scratch to a real $HOMEDIR/.cache directory, the runtimes were installed.

After installation I reverted back the .cache folder to the external drive and everything seems to be working