Error displays when creating a data view

If a data view is created and the following error displays, follow the steps below: To include Encounter Variables, ensure "Interval (Categorical)" is in the Data Set used by this Data View and that is is added as a Column to this Data View

1. Open the data set used by the data view
2. Select Variable Finder in the left panel
3. Select Encounter System Variables in the Find drop down
4. Click the + next to Interval (Categorical) to add that variable into the data set
5. Click Save and Return
6. Open the data view or create a new data view
7. On the Design tab select Interval (Categorical) in the Columns drop down
8. Click Add to add Interval (Categorical) as a column (grouping variable) in the data view
9. Click Preview to view and Save to save the data view design