error messages- converting to design mode

Question

I am in the middle of a development work using C# and VS .Net. After some time I get this message when clicking on the *.cs file and convert to design mode: An error occurred while loading the document. Fix the error and then try loading the document again. The error message follows: Unspecified error  Can anybody help me ?

kovan · Answer

if you changed the name of your class file name and so on u will get this error make sure your class naming are all proper other times i have got that is just close the solution and open it back up and it fixes it