Why can't a study with errors be generated?
You can't generate outcomes if the study setup doesn't meet certain requirements.
Possible solutions
Click Repair next to the desired study in the Generate dialog. A message box lists issues that you should fix before generating outcomes.
Note: You can also click the Pre-check command from the Generate panel to display the warning list. You can find the more information about what is missing from the study setup. A quick check of the design space, constraints, and loads may fix the issue.