An item with the same key has already been added.

[johan.degreef]

PDF creation tasks in Vault job processors give this error: "An item with the same key has already been added."

This article doen not help:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/An-item-with-the-s...

Anyone has other solutions?

Many Thanks, Johan

[jorgen.bjornes · Accepted solution]

Looks like you are not alone:
https://forums.autodesk.com/t5/vault-forum/job-processor/td-p/13013212

[maxDQ7PY]

Have you tried using full Inventor on the Job Processor?

Not ideal but could help if nothing else has

Max

[johan.degreef]

No because I have to pay for a full version then...?

[maxDQ7PY]

I hear you…

try installing the Inventor Interoperability component then 

[johan.degreef]

I have installed all autodesk upgrades, so now on Vault & inventor 2025.2 on all machines.

Still the same error.

Your Case has been successfully submitted.

Case ID: 23349641.

[chris_brownQ5DMQ]

I was seeing the same error: "An item with the same key has already been added."

I found the issue appeared to be a presentation file for a subassembly in the drawing which referenced a historical revision of the subassembly that had since been revised i.e.:

(Assume everything was at Rev00 and is moving to Rev01, this is the structure of the drawing)

Assembly.dwg Rev01

-Assembly.iam Rev01

-Assembly.ipn Rev01

-subassembly.ipn Rev00

--subassembly.iam Rev00

-subassembly.iam Rev01

I had not revised the subassembly.ipn to Rev01 so I believe it would still have been referencing subassembly.iam Rev00, while the Drawing itself was referencing subassembly.iam Rev01 

I have not replicated the error, but when I revised the subassembly.ipn and checked it back it to Vault, I was able to create the .pdf without an error