You might receive the "pipeline component load() method failed on IPersisPropertyBag implementation" error message when you try to drag and drop a custom pipeline component into a pipeline stage. The root cause of this issue can be various, but the most common reason for this kind of failure is because ArgumentException is not caught when you develop the Load method of IPersistPropertyBag interface in your custom pipeline component class. A common way to catch exceptions in Load method is similar to the following:
catch(ArgumentException)
{
return val;
}
catch(Exception ex)
{
throw new ApplicationException(ex.Message);
}
If the first catch is missed, you will receive error when Load method runs for first time.
...Edmund Zhao