Monodevelop 5.9 Run Button not debugging

Hello everyone,

I am using Unity 5.3.1p1 with the new MonoDevelop 5.9.6

For some reason the “Run Buttons” shows a split section and pressing it just compiles the project and nothing else. This was the usual way to get Mono hooked into Unity Editor or device debugging.


Furthermore, clicking on Default does not show up the dropdown with all the Players (shown on the computer of my colleague).

How can I solve this? Thanks in advance.

Deleting Unity related files under /Library/Preferences/ solved the problem

It must have had something to do with keeping 5.2 version and installing 5.3 versions, messing up some preferences.

Too bad that Unity writes so many files without explanation of where they are located