I'm using Qt 6.4.3 and took the example of the analog clock customwidgetplugin included in the Qt installation package. I compiled the plugin and placed it in the path C:\Qt\Tools\QtCreator\bin\plugins\designer. I create a new qt project based on QWidget. In its .ui form I select and insert the created plugin. So far, so good. When I compile the plugin test program, I get this error message:

Qt Code: 
  1. D:\dev\Qt\ProvaEsempioPlugin\debug\moc_analogclock.cpp:59: error: C2491: 'AnalogClock::staticMetaObject': definition of dllimport static data member not allowed
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I don't understand where is the problem... You can help me ?