Suddenly I am getting error when opening SQL SERVER MANAGMEN

Question

When i am opening SQL SERVER 2012 MANAGEMENT STUDIO I AM GETTING A WARNING POP UP SAYING SOMETHING LIKE THAT 
"the microsoft.sqlserver.managment.sqlstudio.exporer.sqlstudioexplorere package did not load correctly "


and having yes and no button after click any of them the SQL SERVER Window pop up and when I go to object explorer and click connect then SQL SERVER 2012 Crashes and restart again and again if i click to connect the same darama happens again ..


"sql server management studio 2012 failed to open connection dialog"

I have tried alot but could not get success until now ...