Projects cannot be named '.' or '..', nor can they contain any non-alphanumeric characters. The complete name cannot be more than 256 characters.

You have used a name for your project that is not valid. Project names cannot contain any non-alphanumeric characters, including "." and "..", nor can they exceed 256 characters in length.

To correct this error

• Verify that the project name is valid.

See Also

Tasks

How to: Add New Project Items

Other Resources

Debugging in Visual Studio