PyQt5：This application failed to start because it could not find or load the Qt platform plugin

文章目录 问题描述 解决方案 可以按照这个安装：【PyQt5笔记】使用 designer 开发 python GUI 界面 问题描述 安装完 PyQt5、pyqt5-tools 后，点击 designer.exe 报错：This application failed to start because it could not find or load the Qt platform plugin"

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