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原创 This application failed to start because no Qt platform plugin could be initialized pyqt5-tools报错

pycharm安装好pyqt5-tools后，打开pyqt5-tools/Qt/bin下的designer报错： This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. 一番搜寻下找到解决方法。 在环境变量中添加： QT_QPA_PLATFORM_PLUGIN_PATH 然后添加环境变量C.