Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized

  • ​​一、现象​​
  • ​​二、原因​​
  • ​​三、解决办法​​
  • ​​四、解决步骤​​

一、现象

Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized_pyqt


点击之后,出现:

Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized_环境变量_02

二、原因

没有添加系统环境变量。

三、解决办法

添加系统环境变量。

四、解决步骤

  2. 打开 控制面板，且在控制面板搜索栏输入"系统"

    3. Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized_python_03

  4. 选择 高级设置

    5. Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized_环境变量_04

  6. 点击 环境变量

    7. Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized_windows_05

  8. 点击 新建

    9. Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized_windows_06

  10. 输入，确定

    11. Designer——运行报错:This application failed to start because no Qt platform plugin could be initialized_python_07

  11. 附：
    变量名：QT_QPA_PLATFORM_PLUGIN_PATH。
    变量值：pyqtX_tools中的与designer上级bin里面的plugins文件夹路径。
  12. 重新打开软件，显示正常