I tried to open Gnome-RDP in Monodevelop, and this is the error that I get:
Could not obtain a C# compiler. C# compiler not found for Mono / .NET 3.5.
The fix is to simply change the compiler target on the project’s properties. Right click on the project and choose “Options”.
Then, change the runtime version.
Changing it to 4.0 fixes the project.
You may need to accept a message like this:
References
Ask Ubuntu: Could not obtain c# compiler error when using monodevelop
you could also just install the compiler for the versions
sudo apt-get install mono-gmcs
@mind: good to know. Thanks for the tip. I’ll have to keep that in mind next time I run into this.