Monodevelop Always Crash when openning?

Questions & Answers
1

I have multi version unity installed

My folder like this:

App/
    Unity3.5.2/
               Unity
               Monodevelop
    Unity3.5.6/
               Unity
               Monodevelop
    Unity4.1.2/
               Unity
               Monodevelop

Only version 3.5.2 can work well with Monodevelop, both 3.5.6 and 4.1.2 crash the Monodevelop when open the script.

How to deal with this? TIA !

2

Trash the old versions and upgrade all your projects to 4.x. That will fix your problems. What is the point of keeping 3 versions of Unity around? It’s a bad practice for any software, not just Unity.