IXP tool not working within agents — Attachment with key None not found

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1

Hi everyone,

I’m facing a blocking issue on my UiPath tenant. After publishing and deploying a new agent, none of my agents are able to use an IXP tool anymore.

The following error is returned systematically :

AGENT_RUNTIME.UNEXPECTED_ERROR
Attachment with key None not found in UiPath or local storage

I have confirmed the following :

  • The issue affects all existing agents
  • Even a brand new agent created from scratch with an IXP tool fails immediately, which rules out any configuration error on our side
  • The IXP tool works correctly when tested individually outside of an agent
  • Worth noting that using the native Analyze Attachment tool works perfectly, confirming the file itself is not the issue
  • The problem therefore seems isolated to the file transmission mechanism between the agent and the IXP tool

Has anyone encountered this issue ? Is there a known fix or a workaround ?

Thanks in advance

2

Hey @ALF1, instead of passing the attachment directly, Current (Broken):
IXP Tool Activity Input: DocumentPath (direct file reference) ->Causes ‘key None’ error For fixing, use this method :
Save Attachment to Local Path First Activity: Get Attachment Content Save to: Local temp folder Then pass LOCAL PATH to IXP: IXP Tool Activity Input: Local file path (not cloud reference)
Should work immediately and now Implementation:
1.Add ‘Get Attachment Content’ activity BEFORE IXP tool
2. Save attachment locally:
3. Path: Path.Combine(System.Environment.GetEnvironmentVariable(“TEMP”), ‘attachment.pdf’)
4. Pass this LOCAL path to the IXP tool
5. Clean up the temp file after, and please let me know is it working or not

3

Hi,

Thank you for the detailed solution, I really appreciate it. Unfortunately I wasn’t able to test it as the issue resolved itself in the meantime. I also felt it would have added some complexity to my current setup.

I’ll keep it in mind if the problem comes back though!