topic Re: New issue: Intermittent 001177 error (attachments not supported in geodatabase release) in ArcGIS Pro Questions

New issue: Intermittent 001177 error (attachments not supported in geodatabase release)

HollyTorpey_LSA — Thu, 16 Oct 2025 18:54:06 GMT

Hi,

I just created a new file geodatabase in Pro 3.5.4 (which I just updated this morning) and tried to export to it the selected features from a series of feature services hosted on ArcGIS Online. These features have attachments.

I exported point features and line features with attachments to my new GDB without incident. When I got to my two polygon layers, I got this error when I tried to export the selected features to the same GDB:

WARNING 001177: Attachments are not supported in this Geodatabase release. Only the feature class and its relationship class were exported to the GDB (not the attachments).

After deleting that layer and relationship class and checking (but not changing) my environment variables, I tried the export again and it succeeded, exporting the features, the relationship, and the attachments as expected.

I had the exact same experience with another set of features in a different polygon feature service. Got the error the first time, deleted the exported content, and then tried again and succeeded.

Anyone else having this experience?

Re: New issue: Intermittent 001177 error (attachments not supported in geodatabase release)

Robert_LeClair — Fri, 17 Oct 2025 16:57:16 GMT

@HollyTorpey_LSA - so I found two things related to what you're experiencing.

Resolution: User was attempting to merge hosted feature layers containing photo attachments in ArcGIS Pro, but since they have a Basic License, the attachments were not being maintained, even when the Maintain attachments check box was checked in the environment settings of the Merge tool. This is an expected behavior, but we did log an enhancement to flag that the warning the user received, Warning 001177: Attachments are not supported in this Geodatabase release., was misleading and unhelpful.

ENH-000150029 : When a user with a Basic license uses a tool with a checkbox that maintains attachments checked, the tool should fail with a clear error message about the licensing discrepancy, instead of running successfully with only a warning that an empty output was generated and that attachments are not supported in this Geodatabase release.

What type of license are you using? Basic, Standard, or Advanced?

Re: New issue: Intermittent 001177 error (attachments not supported in geodatabase release)

HollyTorpey_LSA — Mon, 20 Oct 2025 15:59:47 GMT

Thanks for the response. I have an Advanced license (Professional Plus).

Re: New issue: Intermittent 001177 error (attachments not supported in geodatabase release)

Robert_LeClair — Mon, 20 Oct 2025 18:47:35 GMT

Okay - thx for the information. Question for you - did your workflow work prior to updating to 3.5.4?

Re: New issue: Intermittent 001177 error (attachments not supported in geodatabase release)

HollyTorpey_LSA — Fri, 24 Oct 2025 16:28:08 GMT

This is a workflow that we have carried out regularly for years. This is the first time I remember seeing this error when exporting a selection of features from a hosted feature service to a GDB.

Re: New issue: Intermittent 001177 error (attachments not supported in geodatabase release)

Alden — Mon, 20 Apr 2026 18:30:31 GMT

Holly, I had this exact same issue, trying to export or append from a hosted feature service resulted in Warning 001177. The solution that works for me now is:

1. If using append, make sure you run Add Globalids on the target layer before appending.

2. If using append, run Enable Attachments on the target layer.

3. When running Append, check Maintain Globalids.

4. If using Export Features, run Enable Attachments on the service layer before exporting.

Hope this helps!