qdesktopwidget file not found

The error message "qdesktopwidget file not found" usually occurs when you try to import the QDesktopWidget class in your PyQt5 application, but the module cannot be found.

To fix this error, you can try the following steps:

1. Make sure that you have installed PyQt5 correctly. You can install it using pip or your operating system's package manager.

2. Check that you have imported the correct module. The correct import statement for QDesktopWidget is:

`from PyQt5.QtWidgets import QApplication, QDesktopWidget`

3. Check that you have spelled the module name correctly. The name of the module is case-sensitive, so make sure that you have spelled it correctly.

4. If you are using an older version of PyQt5, you may need to update to a newer version that includes the QDesktopWidget module.

If none of these solutions work, you may need to provide more information about your application and the environment in which it is running to diagnose the problem further.