Cannot execute script

I am trying to use ExtendScript for the first time (with FrameMaker 11, from TCS 4), but the script cannot be executed (very basic script example from the  Adobe "Introduction to Scripting" guide).

The error message says "Cannot execute script. : Target Adobe FrameMaker 11 provides no engine for debugging"

I tried it with other applications of the TC Suite: same error message

Do I need to install another application/module? What can I do to make it work?

Thank you

Geraldine