The error typically occurs when a Windows executable (compiled from Python using tools like PyInstaller ) crashes because it cannot find its source files or lacks the necessary permissions to run. In this specific context, "mspm-source" appears to be a component of a Managed Service Provider (MSP) automation script or a custom-built utility. Core Causes
chmod +x mspm-source
: The system cannot locate the required interpreter (e.g., powershell.exe ) because its folder is missing from the Windows Environment Variables. failed to execute script mspm-source