Error SQL SERVER: Value cannot be null, Parameter name: viewInfo

The problem appeared to be when accessing the contents of a settings file. The file had invalid entries. This file is CurrentSettings-. The fix for this is as shown below:

1. On the server Go to start menu–>Your profile–>Documents–>SQL Server Management Studio–>Settings (this is the location of the file specified above)
2. Delete all files from this folder
3. Restart sqlserver services
4. Launch the SSMS and this error is gone. You will be able to expand all the folders and perform regular SSMS activities without this error.