[Stitch_MS]

Попробуйте отловить

System.Exception e; // declare
;
 
try
{
    ... code that can throw clr error
}
catch (Exception::CLRError)
{
    e = CLRInterop::getLastException();
 
    while( e )
    {
        info( e.get_Message() );
        e = e.get_InnerException();
    }
}