# COSMOS User's Guide

### Navigating and Fixing a Problem

If you have a validation problem, the errors are displayed in the Problems view. To view a validation error, do the following:

1. Double-click an error or warning entry in the Problems view to navigate to the Source section of the SML-IF editor, then to the appropriate line number that is in violation (if line number information is available for that entry). The line number of the SML-IF document is marked with an error or warning icon.
2. After resolving the error in the SML-IF document, save and re-validate the document.

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