About the Troubleshooter
You can use the Troubleshooter dialog box in the following ways:
View warnings and errors encountered in regeneration.
Save explanations of the warnings and errors as annotation notes.
Highlight the items to locate them in the model.
Center and zoom in on the highlighted items.
Obtain information about these items.
It lists a feature, followed by a tree of items containing errors. Each item is preceded by (information), (warning) or (error).