[Development] could not find or load the Qt platform plugin "cocoa"

[Henry Skoglund]

Hi,

just guessing but if your /Volumes/Data is an external hard disk this 
might be due to a permissions problem. If you try testing by 
(temporarily!) move the platforms directory (containing the 
libqcocoa.dylib file) from /Library/Application 
Support/Waves/WavesQtLibs_5.5.1/plugins/ to 
Volumes/Data/p4client/ProAudio/dev_main/ProAudio/Products/Release/Apps/CODEX 
App.app/Contents/MacOS/ you still get the same error?

Rgrds Henry


On 2015-10-28 15:09, Gil Moses wrote:
> Hi,
>
> I've built Mac universal binaries of v5.5.1 (built separately for i386 and x86_64, then used lipo).
> Built and ran my Qt app (Xcode 5, Mavericks), and got this error:
>
> . could not find or load the Qt platform plugin "cocoa".
>
> Further diagnosis using DYLD_PRINT_LIBRARIES and QT_DEBUG_PLUGINS prints this when running the app:
>
> ==============
> <many lines>
> QFactoryLoader::QFactoryLoader() checking directory path "/Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms" ...
> QFactoryLoader::QFactoryLoader() looking at "/Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib"
> Found metadata in lib /Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib, metadata=
> {
>      "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
>      "MetaData": {
>          "Keys": [
>              "cocoa"
>          ]
>      },
>      "className": "QCocoaIntegrationPlugin",
>      "debug": false,
>      "version": 328961
> }
>
>
> Got keys from plugin meta data ("cocoa")
> QFactoryLoader::QFactoryLoader() checking directory path "/Volumes/Data/p4client/ProAudio/dev_main/ProAudio/Products/Release/Apps/CODEX App.app/Contents/MacOS/platforms" ...
> dyld: loaded: /Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib
> dyld: unloaded: /Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib
> loaded library "/Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib"
> QLibraryPrivate::loadPlugin failed on "/Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib" : "Cannot load library /Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib: (dlopen(/Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib, 5): Library not loaded: @rpath/QtGui.framework/Versions/5/QtGui\n  Referenced from: /Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/platforms/libqcocoa.dylib\n  Reason: image not found)"
> This application failed to start because it could not find or load the Qt platform plugin "cocoa".
>
> Available platform plugins are: cocoa.
>
> Reinstalling the application may fix this problem.
> Abort trap: 6
>
> ============
>
> I verified that the Qt frameworks (especially the QtGui mentioned in the error) and libqcocoa.dylib are universal i386 & x86_64.
>
> Any ideas?
>
> Thanks,
> Gil Moses
> Waves Ltd.
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