Can't compile

[timlyg]

Loaded into my Visual Studio,
can't compile it, didn't have time to check it out, thought you may have some quick tips. Here's error message:
Error Application Configuration file "App.config" is invalid. Could not find file '\spgnyfile02\SPGSHARE\Users\TLaw\Visual Studio 2015\Projects\Test\udtholepunch-master\App.config'. udtholepunch \spgnyfile02\SPGSHARE\Users\TLaw\Visual Studio 2015\Projects\Test\udtholepunch-master\App.config