解决This application failed to start because no Qt platform plugin could be initialized. Reinstalling 古城微笑少年丶 2022-11-21 14:57 151阅读 0赞 ### 解决This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. ### ### Windows pyqt打开designer.exe报错 ### ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center] #### 报错信息 #### This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. ![在这里插入图片描述][20201102132421734.png_pic_center] #### 解决办法 #### 替换两个文件 ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center 1] cd ..\Python\Lib\site-packages\pyqt5_tools\Qt\plugins\platforms 复制上图中的两个文件到 cd ..\Python\Lib\site-packages\pyqt5_tools\Qt\bin\platforms 将将原有文件重命名 - ，放置新文件 ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center 2] #### 再次打开designer.exe，问题决了 #### ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center 3] #### 安装pyqt5 #### pip install PyQt5 -i https://pypi.douban.com/simple #### 安装qt工具 #### pip install PyQt5-tools -i https://pypi.douban.com/simple > > > #### 欢迎大家交流学习，任何问题都可以留言 #### [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center]: /images/20221120/5c87d528fc3144f68629b02a8b471a32.png [20201102132421734.png_pic_center]: /images/20221120/a3ae87378d744ec8a3da70f461088eaf.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center 1]: /images/20221120/af255494b6684838988fa0bcf50255d1.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center 2]: /images/20221120/b67b1514b919493893a6ce832669d48a.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTE5NDE3MQ_size_16_color_FFFFFF_t_70_pic_center 3]: /images/20221120/131705f08d9e4306b9beb662bb699480.png
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