This "fatal error" usually means the program crashed before it could even start its main logic. The most frequent culprits include:
pyinstaller --onefile --hidden-import=mspm-source your_script.py Use code with caution. failed to execute script mspm-source
: Right-click the .exe and select Run as Administrator to bypass potential permission restrictions. This "fatal error" usually means the program crashed
If you are the of the script, try these technical solutions: A. Identify the Missing Module If you are the of the script, try
: The script was built in a specific environment (like a virtual environment or Anaconda) but is missing those modules when executed as a standalone file.
To see the actual error (which is hidden behind the generic "failed to execute" popup), run the executable through the : Open cmd . Drag your .exe file into the terminal and press Enter.
: Turn off real-time monitoring in Windows Defender or your third-party antivirus to see if the script executes.