[c#] How to retrieve the LoaderException property?

I get a error message while updating my service reference:

Custom tool warning: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

How can I retrieve the LoaderException property?

Update: My errors went away when I reimported the domain object projects. I have no idea why this fixed the issue, but I'm happy it's working.

Another Alternative for those who are probing around and/or in interactive mode:

$Error[0].Exception.LoaderExceptions

Note: [0] grabs the most recent Error from the stack

catch (ReflectionTypeLoadException ex)
{        
    foreach (var item in ex.LoaderExceptions)
    {
          MessageBox.Show(item.Message);                    
    }
}

I'm sorry for resurrecting an old thread, but wanted to post a different solution to pull the loader exception (Using the actual ReflectionTypeLoadException) for anybody else to come across this.

Using Quick Watch in Visual Studio you can access the LoaderExceptions from ViewDetails of the thrown exception like this:

($exception).LoaderExceptions