Unresolved Reference In Database Project

Ed Elliott explains something fairly straightforward and gives us a primer on using Stack Overflow too:

If you build an SSDT project you can get an error which says:

“SQL71502: Function: [XXX].[XXX] has an unresolved reference to object [XXX].[XXX].”

If the code that is failing is trying to use something in the “sys” schema or the “INFORMATION_SCHEMA” schema then you need to add a database reference to the master dacpac:

Click through for the answer and a comment-by-comment walkthrough from Ed.