The type or namespace name 'arithmeticBaseVisitor<>' could not be found

[gnilsson2]

Severity Code Description Project File Line Suppression State Error CS0246 The type or namespace name 'arithmeticBaseVisitor<>' could not be found (are you missing a using directive or an assembly reference?) AntlrConsole1 C:\Users\gnils\source\repos\AntlrConsole1\AntlrConsole1\CalculatorVisitor.cs 6 Active

[gnilsson2]

Solved Turns out it's %JAVA_HOME% and %Antlr4ToolPath%, can't contain "". Even if the test: "%JAVA_HOME%\bin\java.exe" -jar "%Antlr4ToolPath%" works.