Unable to load: BrowserForm.resx' because it is not trusted?

On opening a project I get this ERROR
Unable to load
because it is not trusted.

I a unable to successfully compile a program
because of this error.
Then when I try to compile I get this ERROR
Severity Code Description Project File Line Suppression State
Error Couldn’t process file Form1.resx due to its being in the Internet or Restricted zone or having the mark of the web on the file. Remove the mark of the web if you want to process these files.
How can I resolve this ?