invalid file error in C# application

Good morning experts,

I just copied a small C# application which is still being developed from my hard drive at home to the one at work.
In both environments I use MS Visual Studio 2010.
When I tried to run the application at work I get the following error:


Error      1      Invalid Resx file. The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.  Line 315, position 5.      C:\Users\helpdesk2\Documents\Visual Studio 2010\Projects\Helpdesk2\Helpdesk2\frmDataEntry.resx      315      5      Helpdesk2


I am not familiar with XML and have no idea how to go about fixing error.

Please help if you can.

Thanks

Adam