There is A LOT of source code in this thing!

After doing some more digging I found the missing class source files in the "target/generated-sources/antlr" folders of the two projects having the problem.

I'm not sure why these were not included in the list of source directories for them but I was able to add them manually and the compile errors are now all gone!

I hope no one spent too much time trying to answer my previous query.

Richard M Feezel