How to debug ASP.NET 4 with mono in VScode on Mac OS X

I just tried to debug an existing 4-project mono-ASP.NET (in C #) in VScode. Unfortunately it just doesn't work. Since I have no idea how to set up launch.json and taks.json to compile an ASP.NET project, run and finally debug it.

Unfortunately, there is no documentation on how to set up VScode and its debugger to run ASP.NET 4 / c mono projects.

Does anyone have an idea how to set up debug and run in VScode for ASP.NET 4 projects?