Details
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Bug
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Resolution: Invalid
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Not Evaluated
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None
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5.12
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macOS 10.14.5+
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macOS
Description
Using Qt that is built from source code.
When Qt Assistant is shipped as a part of Qt application, launching it from within the app's Contents/MacOS directory fails.
The binary runs fine on macOS 10.13.6
The error message output when running the binary from console is:
$ ./Assistant qt.qpa.plugin: Could not load the Qt platform plugin "cocoa" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: cocoa. Abort trap: 6 $
"QT_DEBUG_PLUGINS=1" outputs as follows
QFactoryLoader::QFactoryLoader() checking directory path "/Applications/Explorer.app/Contents/PlugIns/platforms" ... QFactoryLoader::QFactoryLoader() looking at "/Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib" Found metadata in lib /Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib, metadata= { "IID": "org.qt- project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3", "MetaData": { "Keys": [ "cocoa" ] }, "archreq": 0, "className": "QCocoaIntegrationPlugin", "debug": false, "version": 330752 } Got keys from plugin meta data ("cocoa") QFactoryLoader::QFactoryLoader() checking directory path "/Applications/Explorer.app/Contents/MacOS/platforms" ... Cannot load library /Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib: (dlopen(/Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib, 133): no suitable image found. Did find: /Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib: code signature in (/Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib) not valid for use in process using Library Validation: mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed.) QLibraryPrivate::loadPlugin failed on "/Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib" : "Cannot load library /Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib: (dlopen(/Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib, 133): no suitable image found. Did find:\n\t/Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib: code signature in (/Applications/Explorer.app/Contents/PlugIns/platforms/libqcocoa.dylib) not valid for use in process using Library Validation: mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed.)" qt.qpa.plugin: Could not load the Qt platform plugin "cocoa" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: cocoa.