Model-Based Definition > Geometric Dimensioning and Tolerancing Advisor > Advisor Message Help > Geometric Tolerance Messages > GCS Is Not Valid for the Feature/DRF Combination
  
GCS Is Not Valid for the Feature/DRF Combination
The specified geometric characteristic symbol represents a geometric control that is not valid for the feature and the selected DRF. This may have been caused by a change in the design model that changed the relative location or orientation of the feature to the DRF. This problem causes the geometric tolerance to be considered a failed object, as indicated by a separate 'There are failed objects in the model' message.
You can fix this problem through the following procedure:
1. Right-click on the feature in the Feature Tree and select Edit... from the context menu.
2. Select an appropriate geometric characteristic symbol from the menu.
3. Select a compatible DRF.
4. Click the Accept button in the dashboard.