I am getting this error everytime i run the solution (20 projs). I tried to disable the UI options , resharper, deleted un used extensions etc. but still couldnt get pass this error. 

I am on VS 2015 Update 2 Enterprise version
I have restarted VS several times, killed the process when i got that message and sometimes i stopped the app when i got that message.
I have also unloaded the projects that are not necessary for my task at this moment but still same problem

Microsoft Visual Studio is waiting for an internal operation to complete. If you regularly encounter this delay during normal usage, please report this problem to Microsoft.
[![Microsoft Visual Studio is Busy Dialog](https://i.stack.imgur.com/pDMJv.png)](https://i.stack.imgur.com/pDMJv.png)

Please advise if you have any solution to resolve this error.