Unity 4.3 - Strange compiler errors

I was writing a script in Unity 4.3.3 MonoDevelop 4 and suddenly the Editor indicates several errors in many scripts of my project. These script are in the project (without any error) a long time, and suddenly it happens.

I’ve delete the scripts and imported again, but the error remains.
I’ve switched to the old version of MonoDevelop, but the error remains.

Can anyone help me? I spent a lot of time and efforts to that project and can not give up that way.

Thanks for your attention.

What are the errors?

1 Like

Turn off your virus scanner and/or run Unity as Administrator.

I figured after deleting the folder of the plugin RevMob everything returned to normal.
Thank you for your attention.