pyqt5在pycharm遇到的问题与解决(this application failed to start because no Qt platform plugin could be initi)

pyqt5的搭建让我特别头疼,搞了整整一天,在这边记录一下,防止下次安装再出错

1.下载pyqt5

2.执行install PyQt5 -i https://pypi.douban.com/simple安装pyqt5(如果提示无此命令则需要添加环境变量或者直接找到pyqt5的安装)路径, 搜索pip.exe, 在当前文件夹里面打开控制台(WIN系统), 执行 .\pip install PyQt5 -i https://pypi.douban.com/simple

3.安装pycharm, 会自动搜索pyqt5的库,如果不自动搜索,就手动去添加,File->setting->project->project interpreter->+搜索pyqt5

4.再继续安装pyqt5-stubs

5.设置环境变量,这一步很重要,否则运行GUI程序时, 就会被this application failed to start because no Qt platform plugin could be initialized, Reinstalling the application may fix this problem, available platform搞到崩溃!

1)用户环境变量

2)系统环境变量

 

3)新建路径QT_PLUGIN_PATH,这一步很重要