You are developing a Windows Store app named GeoLoc. You have the following code: When you run the app on some devices, you receive the following error message: "An exception of type…

You are developing a Windows Store app named GeoLoc. You have the following code:

When you run the app on some devices, you receive the following error message:

"An exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll but was not handled in user code." You need to resolve the issue that causes the exception to occur. Which file should you modify?