I'm using Visual Studio 2015 with ANTLR4 with the offical plugin. It recognizes .g4 files. I wrote a grammar file, and it seems to generate code. The generated code is placed into the obj\Debug folder. Also, partial classes are generated as child of the .g4 grammar file.
So, all seems to go well, except that Visual Studio does not recognize the code in obj\Debug. The partial classes under the g4 solution item do not resolve to the other part of the partial classes.
What is the best way to have visual studio include the generated code in obj\Debug?