180657: Field: <value> in the <value> feature class could not be changed from [Nullable] to [Non-Nullable] due to existing data.

Description

The feature class contains existing data, which prevented a field property from being updated to non-nullable.

Solution

Do one of the following:

• Create a new version of the feature class, run the upgrade tool, and append the data from the original feature class to the updated feature class.

• Take no action. The nullable properties of fields do not affect how data is used in the Indoors apps.