topic Re: Error adding item by selecting an existing feature layer in ArcGIS Online in ArcGIS Online Questions

Error adding item by selecting an existing feature layer in ArcGIS Online

HollyTorpey_LSA — Tue, 07 Feb 2023 18:40:42 GMT

I'm trying to create a new hosted feature layer with three layers in ArcGIS Online starting by clicking the New Item button on the Content page. Ideally, I would like to do this by using the schema of an existing feature layer.

The existing feature layer I select has many layers. I deselect them all and then select the three I want to use.

I enter the details for the new item and hit next. Unfortunately, I get this vague error every time: "There was an error while adding this item."

I have tried including and excluding GPS metadata fields and Z values and that makes no difference. I am using an organizational account and I'm an administrator. Any idea what could be going wrong?

If I try to create the feature layer from scratch (using the "Define your own layer" option in the first screenshot above) with the rest of the settings the same, it works. Why am I unable to use the schema of an existing feature layer? I know I can likely open the existing feature layer in Pro, export it to a GDB, and then republish it as a new layer, but I'd still like to know why this isn't working and repair whatever is wrong.

Thanks in advance!

Re: Error adding item by selecting an existing feature layer in ArcGIS Online

PatrickRicker — Fri, 31 Mar 2023 13:08:27 GMT

Did you ever find a resolution to this issue? I'm having the same problem when trying to add a rest service to an AGOL map. AGOL doesn't automatically recognize the URL type as an "ArcGIS Server web service." I have to select that option from the dropdown. After adding the title other information and clicking "Save," it says "Error There was an error while adding this item."

Re: Error adding item by selecting an existing feature layer in ArcGIS Online

ScottKiley — Wed, 09 Aug 2023 23:25:18 GMT

I'm having this error as well now. The browser developer tools show the following:

Error: Unable to add feature service definition.
at C.L.load (main.js:577:480)
at dojo.js:83:135
at k (dojo.js:99:69)
at e (dojo.js:98:381)
at resolve.callback (dojo.js:100:185)
at k (dojo.js:99:284)
at e (dojo.js:98:381)
at resolve.callback (dojo.js:100:185)
at dojo.js:87:282
at d (dojo.js:102:459)
yt @ cdn-a.arcgis.com/cdn…app/p-6e51a9b3.js:5
await in yt (async)
handleAddItem @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
handleRequest @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
await in handleRequest (async)
navigateToNextPage @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
(anonymous) @ p-917c3bfb.js:5
triggerPageTransition @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
onClick @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
Error: Unable to add feature service definition.
at C.L.load (main.js:577:480)
at dojo.js:83:135
at k (dojo.js:99:69)
at e (dojo.js:98:381)
at resolve.callback (dojo.js:100:185)
at k (dojo.js:99:284)
at e (dojo.js:98:381)
at resolve.callback (dojo.js:100:185)
at dojo.js:87:282
at d (dojo.js:102:459)
handleRequest @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
await in handleRequest (async)
navigateToNextPage @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
(anonymous) @ p-917c3bfb.js:5
triggerPageTransition @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
onClick @ cdn-a.arcgis.com/cdn…0d77a2f2.entry.js:5
main.js:4410

POST https://mobileanalytics.us-east-1.amazonaws.com/2014-06-05/events net::ERR_BLOCKED_BY_CLIENT

Re: Error adding item by selecting an existing feature layer in ArcGIS Online

BrookeAumann — Mon, 28 Oct 2024 19:52:29 GMT

Hello!

Just came across this error while trying to do something similar. Published layers from ArcGIS Pro (layers were in a GDB) and the feature service itself is fine, but if you try to create new layers from it, get the same error. Not sure where the issue is, or with which layer, etc. because the error is generic. Hopefully someone see this and finds a solution 🙂

Re: Error adding item by selecting an existing feature layer in ArcGIS Online

BrookeAumann — Tue, 30 Sep 2025 14:53:37 GMT

BUMP! This is still happening and I can't be the only one. Anyone find out what's going on? Guess it's time to open a support case. It's weird because the behavior can be intermittent. @KellyGerrow I saw another post where you assisted... maybe you can help here?

Re: Error adding item by selecting an existing feature layer in ArcGIS Online

HollyTorpey_LSA — Tue, 14 Apr 2026 16:06:13 GMT

Update: I just re-tested this workflow and it seems to be working now.