Re: [Linuxsampler-devel] Issue with QSampler on macOS

[TJ L. <tjl...@ma...>]

Unfortunately, the app still does not open. If I launch from the app itself, it just shuts down. If I open the app contents and run it from there I get the following in terminal.

tjl@TJs-Mac-mini ~ % /Applications/LinuxSampler/qsampler.app/Contents/MacOS/qsampler ; exit; 
This application failed to start because it could not find or load the Qt platform plugin "cocoa”.

I’m attaching the crash log as well. Both QT6 and QT5 are installed via homebrew and reside in /opt/homebrew.

Regarding being unable to build QSampler from scratch, there are libraries I can’t resolve when building for arm. I've have yet to be successful building either linuxsampler or qsampler for arm. The vet and au plugins won’t work in Rosetta as they are 32-bit so trying to build for arm is the only option unless anything can be done on your end.

TJ Lindgren



> On Jul 3, 2026, at 1:20 PM, Christian Schoenebeck <sch...@li...> wrote:
> 
> On Saturday, 27 June 2026 01:10:30 CEST TJ Lindgren wrote:
>> Running the latest snapshot of Linuxsampler for macOS dated 2026-06-22, when
>> launching Qsampler it cannot find the QtSvg framework.
>> 
>> Termination Reason:    Namespace DYLD, Code 1 Library missing
>> Library not loaded: QtSvg.framework/Versions/5/QtSvg
>> Referenced from: <C874D53C-665D-33A0-8651-EAAADCE84EFC>
>> /Applications/LinuxSampler/qsampler.app/Contents/MacOS/qsampler Reason:
>> tried: 'QtSvg.framework/Versions/5/QtSvg' (no such file),
>> '/System/Volumes/Preboot/Cryptexes/OSQtSvg.framework/Versions/5/QtSvg' (no
>> such file), 'QtSvg.framework/Versions/5/QtSvg' (no such file),
>> '/Library/Frameworks/QtSvg.framework/Versions/5/QtSvg' (no such file),
>> '/System/Library/Frameworks/QtSvg.framework/Versions/5/QtSvg' (no such
>> file, not in dyld cache) (terminated at launch; ignore backtrace)
>> 
>> If you open the QSampler Package Contents, the file in question is located
>> in
>> /Applications/LinuxSampler/qsampler.app/Contents/Frameworks/QtSvg.framework
>> /Versions/5/QtSvg with an alias in
>> /Applications/LinuxSampler/qsampler.app/Contents/Frameworks/QtSvg.framework
>> /QtSvg however the app is not looking for the library in either of those
>> places.
> 
> A bunch of references were wrong, which I just fixed now in our Mac build
> script:
> 
> https://svn.linuxsampler.org/cgi-bin/viewvc.cgi/misc/trunk/mac_package_builder/make-qsampler-app.sh?revision=4624&view=markup
> 
> I think the references look OK now:
> 
> otool -L components/qsampler.pkg/LinuxSampler/qsampler.app/Contents/MacOS/qsampler 
> components/qsampler.pkg/LinuxSampler/qsampler.app/Contents/MacOS/qsampler:
>        @rpath/QtSvg.framework/Versions/5/QtSvg (compatibility version 5.4.0, current version 5.4.2)
>        @rpath/QtNetwork.framework/Versions/5/QtNetwork (compatibility version 5.4.0, current version 5.4.2)
>        @rpath/QtWidgets.framework/Versions/5/QtWidgets (compatibility version 5.4.0, current version 5.4.2)
>        @rpath/QtGui.framework/Versions/5/QtGui (compatibility version 5.4.0, current version 5.4.2)
>        /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
>        /System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
>        @rpath/QtCore.framework/Versions/5/QtCore (compatibility version 5.4.0, current version 5.4.2)
>        @executable_path/../Resources/liblscp.6.dylib (compatibility version 6.0.0, current version 6.0.6)
>        /usr/local/lib/libgig.13.dylib (compatibility version 14.0.0, current version 14.0.0)
>        /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 28.1.0)
>        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)
> 
> So please re-download and try again.
> 
>> I tried building from source but it does not seem to play nice at all.
> 
> What was the problem?
> 
> /Christian
> 
> 
> 
> 
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