Hi.

All of a sudden in one of our projects we get 158 errors! All of them is Undefined symbol in argument xxx and all of them is in DF pkg files.
Examples:
DD_CANNOT_SWITCH_PARENT in DataDict.pkg
C_$DriverConfigurationError in cConnection.pkg
C_$ManagedConnections in cConnection.pkg

The most confusing part is that when I compare this projects AppSrc to the same project located on another computer all the files are exactly the same but on that computer everything works and compile.
What am I missing here?
Where are C_$ManagedConnections defined?

This is DF19.1 by the way.