We are getting the Message "Existing PLC project was not the last project generated by Unity Application Generator" in UAG.
In UAG installation, there is a time stamping tool.Use this to sync the Unity Project timestamp with the UAG project timestamp.
This message usually occurs when the user does additional modifications in the unity project post UAG generation ,UAG uses timestamps to ensure that the project has not been tampered with.
However, please note, post running this tool and performing incremental generation from UAG will cause the latest UAG project modifications to over write changes made in the same section in Unity.
We do recommend taking a backup of your UAG and Unity project files as a precaution. Follow the path in attached file for Timestamp.exe tool.