[mcstas-users] simulation doesn't work

[Simsima Bouali]

Dear All 

I have a problem with running my McStas simulation, I have just began with inserting the source and a PSD monitor but unfortunately I didn’t get the window with the questions on the simulation to choose my own parameters. The message that I have received is “only a single instrument may be given (C document, and)”.
Please I would be grateful if someone can help me to find out where is the mistake.

Best regards