This application failed to start because no Qt platform plugin could be initialized

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错误提示

在打开PyQt5-tools中的Designer.exe时,提示如下错误:

技术图片

designer

This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

解决方法

定位到Python38Libsite-packagesPyQt5Qtplugins,这个位置取决于你安装Python的位置,我的电脑上该位置的完整路劲是:C:UsersfocksorAppDataLocalProgramsPythonPython38Libsite-packagesPyQt5Qtplugins

将该目录下的platforms文件夹复制到Python38Libsite-packagespyqt5_toolsQtin,并替换处于该目录下的platforms内的文件。

再次打开designer.exe,此时问题应该已解决。

参考

PyQt5 Designer is not working: This application failed to start because no Qt platform plugin could be initialized

提示

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