Contents

1. FAQ -- common run-time errors
   1. Plugin loader failure

FAQ -- common run-time errors

Plugin loader failure

Error message

000038 [2014-02-28 15:50:58.750509] <error> cannot load plugin 'PluginName.dll'. Plugin loader returned error: Cannot load library .//PluginName.dll: ...

Solution

See ​http://qt-project.org/doc/qt-5/deployment-plugins.html for more information about development of Qt plugins. You can set QT_DEBUG_PLUGINS environment variable to a non-zero value to see more information from plugin loader.

1. Check if filename 'PluginName.dll' is correct in your XML file.
2. Check if the correct version (release/debug) is used, see plugins postfix attribute in the XML.
3. Check if this file exists in the same directory as the executable.
4. Check if this component CMakeLists.txt uses create_export and pacpus_plugin macros and that it adds generated files to the source file list, e.g.:

   create_export(EXPORT_HDR ${PROJECT_NAME})
   pacpus_plugin(PLUGIN_CPP PLUGIN_H ${PROJECT_NAME})
   
   set(SRCS
       ${PLUGIN_CPP}
       ...
   )
   

5. Check for the missing DLL's dependencies, other DLLs can be missing (verify it using e.g. DependencyWalker). (Windows) Copy DLLs to the application's folder or add their folder to PATH. (Unix) Make them visible to the linker.
6. (Windows) Check if the .dll file exports any symbols (using e.g. DependencyWalker).
7. Check if both the application and the plugin have been built in the same version (release/debug).
8. ... TO BE FOUND