I created a new Xamarin Forms solution using a PCL. At this stage the solution had two projects in it: one for my Android-specific code and another for the platform-agnostic Application code. I then added a third project to my solution. It is an existing PCL project which contains some shared code that I wish to use across multiple applications. At this point everything was compiling and working ok.
After re-opening Xamarin Studio I've noticed that my files from the original two project are missing. They do not appear in the solution window when I expand the project. If I attempt to add them again, I get an error message that says "The link '' in the project already includes the file 'L:\XA - Xamarin\XA002_Feeder\Daint\Params.cs'". Everything still compiles. I can open files by doing "File>Open" and modify them. I can also search files. I just can't navigate to any of my source files through the solution window.
Any ideas how to fix this?