Unable to determine application identity of the caller?

Question

I\'m writing a Silverlight pivot app in VS2010 for Windows Phone. I just added the example code from msdn here. Now every time I reload the designer I get an exception:

Answer 1

You need to add a check to DesignerProperties.IsInDesignTool to that code since accessing IsolatedStorageSettings in Visual Studio or Expression Blend is invalid.

if (!System.ComponentModel.DesignerProperties.IsInDesignTool)
{
     settings = IsolatedStorageSettings.ApplicationSettings; 
}