To fix the "permission denied" error in PyInstaller, you can try the following steps:
1. Run the command prompt or terminal as an administrator (Windows) or use sudo (Linux/macOS) before executing the PyInstaller command.
2. Check if any antivirus software or Windows Defender is blocking PyInstaller. Temporarily disable them during the conversion process.
3. Ensure that PyInstaller has the necessary permissions to access the files in your Python script. Right-click on the script and go to properties, then unblock it if it is blocked.
4. If the above steps do not resolve the issue, try using a different output directory for the generated executable. Provide an absolute path instead of a relative one.
5. In some cases, issues with file permissions can occur due to the Python installation directory itself. Consider reinstalling Python in a location where you have read and write access.
Remember to adapt these steps to your specific operating system and the Python version you are using.