You are using Portal for ArcGIS and have installed VertiGIS Studio Go but when you try to open Go on a device or computer, you get the following error message:

Solution: The error indicates that you have not created an app in Portal for ArcGIS with the correct tags and permissions and an app ID.
For instructions on creating a Mobile app in Portal for ArcGIS, see Create an App in ArcGIS Online or Portal for ArcGIS.