How do I compile this code in VS for Mac (17.5.4)

[IDispose]

Cloned the repo and upgraded all nuget packages. However there's doesnt seem to be an option in VS 4 Mac to process OutputProcessors/json.g4 to regenerate the C# files. Recent changes to Antlr packages have changed the datatype leading to this error

FHIR-Converter/src/Microsoft.Health.Fhir.Liquid.Converter/OutputProcessors/AutoGenerated/jsonParser.cs(69,25,69,38): error CS1715: 'jsonParser.SerializedAtn': type must be 'int[]' to match overridden member 'Recognizer<IToken, ParserATNSimulator>.SerializedAtn'
FHIR-Converter/src/Microsoft.Health.Fhir.Liquid.Converter/OutputProcessors/AutoGenerated/jsonLexer.cs(88,25,88,38): error CS1715: 'jsonLexer.SerializedAtn': type must be 'int[]' to match overridden member 'Recognizer<int, LexerATNSimulator>.SerializedAtn'

Question: How do I regen the files to pick up the new data structure? There doesnt seem to be a tool that can regen the C# files. Tried suggestion from this https://stackoverflow.com/questions/64892272/how-to-compile-g4-to-cs with no luck.

[namalu]

@IDispose Can you please provide the steps to reproduce the errors you are seeing. Thank you.