10.7: Troubleshooting 32-bit audio unit compatibility in Lion
Upon opening Logic Express 9 for the first time after upgrading to Lion, I received a notification that some of my audio units were unavailable (one of these unavailable audio units was AmpliTube 3, which I use for all of my guitar tones!). Fortunately, the fix was very simple: I opened Logic Express in 32-bit mode, and when I returned to 64-bit mode, the previously unavailable audio units were functional again.
Here are the steps I took:
Close Logic Express.
Navigate to the Applications folder and open the info window for Logic; select its icon, and Control+click Get Info, or press Command+I.
In the Info window, click the box for 'open in 32-bit mode.'
Open Logic Express, allow it to scan the audio units and finish loading, then close it.
Open the Info window again and uncheck 'open in 32-bit mode' to return to 64-bit mode
All 32-bit audio units should now be available in 64-bit mode.
Upon opening Logic Express 9 for the first time after upgrading to Lion, I received a notification that some of my audio units were unavailable (one of these unavailable audio units was AmpliTube 3, which I use for all of my guitar tones!). Fortunately, the fix was very simple: I opened Logic Express in 32-bit mode, and when I returned to 64-bit mode, the previously unavailable audio units were functional again.
Here are the steps I took:
Close Logic Express.
Navigate to the Applications folder and open the info window for Logic; select its icon, and Control+click Get Info, or press Command+I.
In the Info window, click the box for 'open in 32-bit mode.'
Open Logic Express, allow it to scan the audio units and finish loading, then close it.
Open the Info window again and uncheck 'open in 32-bit mode' to return to 64-bit mode
All 32-bit audio units should now be available in 64-bit mode.