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

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

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

错误提示

在打开PyQt5-tools中的Designer.exe时，提示如下错误：

[image-20200619231239409

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Python38\Lib\site-packages\PyQt5\Qt\plugins，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:\Users\focksor\AppData\Local\Programs\Python\Python38\Lib\site-packages\PyQt5\Qt\plugins。

将该目录下的platforms文件夹复制到Python38\Lib\site-packages\pyqt5_tools\Qt\bin，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

如果你同样遇到该问题并通过此贴解决了问题，你可以留下你的评论来提示后来人该方法是可行的。

作者： focksor

出处：https://www.cnblogs.com/focksor/p/13166970.html

版权：本文采用「署名-非商业性使用-相同方式共享 4.0 国际」知识共享许可协议进行许可。