Invoke Method: Cannot start process because a file name has not been provided

I am using Invoke method to open power term and do certain operations but when I am trying to open through InvokeMethod I am getting this error
Invoke Method: Cannot start the process because a file name has not been provided.
All the inputs to the Invoke method are passed.
Please help me with this.

Thanks in advance.

Hi,

Could you please share the screenshot of that error message

Regards,