How to retrieve the LoaderException property?

135
votes

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.

4
c#.netwcf
How did you manage to fix this? What do you mean by "reimporting domain object project"? (remove reference to the project and re-add it again?) – Nikos Tsokos

4 Answers

151
votes
try
{
  // load the assembly or type
}
catch (Exception ex)
{
  if (ex is System.Reflection.ReflectionTypeLoadException)
  {
    var typeLoadException = ex as ReflectionTypeLoadException;
    var loaderExceptions  = typeLoadException.LoaderExceptions;
  }
}
79
votes
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.

6
votes

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

($exception).LoaderExceptions
0
votes

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