Manually telling Windows where to look for the plugin can resolve path conflicts. Stack Overflow Search for "Edit the system environment variables" in your Start menu. Environment Variables System Variables and enter: Variable name: QT_QPA_PLATFORM_PLUGIN_PATH Variable value: [The full path to the folder mentioned in Step 1]. Restart your computer to apply the changes. Stack Overflow 3. Repair System Files
<Qt installation>/plugins/platforms/
If you want, I can: