The file {0} cannot be converted, for the following reason: {1}. If the converter cannot access the file, you could change ...

The file {0} cannot be converted, for the following reason: {1}. 
If the converter cannot access the file, you could change the file's access permissions and try again. Otherwise, exclude the file from the project and try again, or open the project in the version of Visual Studio in which the file was created.