Issue
- You are trying to join two sets of data using a Merge Join.
- No matter what you try you get the error "An Item with the same key has already been added"
Background:
- It works
well using Visual Studio 2017, but your same map design does not work on Visual
Studio 2012.
What
you may have tried and did not work:
- Deleting and
recreating map
- Renaming connections
and every other node in VS
- Restarting your server
What worked for
me:
- Add a two-layer
sort for both outputs before the merge join as the error is complaining about a
key.
