I've installed mono, and I am able to compile and execute command line C# applications to learn syntax. However, I keep getting this after compiling:
warning CS8001: SDK path could not be resolved Compilation succeeded - 1 warning(s)
After searching around the web, almost every answer said to install libmono-winforms2.0-cil. However, I found out that was only for Ubuntu 12.04 and 14.04. I also read that libmono-system-windows-forms4.0-cil replaces this, but it's already installed and does nothing.
How can I get rid of this warning, and what does it even mean?