This error usually occurs when importing a project with the Concept Converter.
Go back to the version of Concept from which the project was converted. Open the project and go to Tools - Preferences - IEC Extensions
and turn on <Allow leading digits in identifiers>. Re-export the project.
Legacy KB System (APS) Data: RESL212791 V1.0, Originally authored by DaSo on 10/17/2013, Last Edited by DaSo on 10/17/2013
Related ranges: Concept