I have been happily using the LinuxSampler Audio Unit plug-in in GarageBand in Mac OS X Mavericks. After recently upgrading to Mac OS X Yosemite and updating to the latest GarageBand (10.0.3), now I get the following error:
Audio Unit plug-in can't be used
The Audio Unit "LinuxSample" (sic) could not be loaded for your project.
Any suggestions would be greatly appreciated.