Error adding Experience Builder Widget (11.4)

moremeowbell — Mon, 30 Jun 2025 12:50:47 GMT

Hello all!

I am having an issue adding an Experience Builder Widget to our new ArcGIS Enterprise 11.4 environment. This widget was uploaded and functional in our old environment on 11.3, so I have been troubleshooting why it can't be added this time around. NOTE: The new system has had issues where there isn't a 1:1 match on things. For example, a previous issue was resolved with a firewall adjustment, so it is possible that a system change could fix the issue.

My initial thoughts are that there is some sort of connectivity issue with Portal to Server due to the 500 error on a POST request, but I am not too sure what the issue is or how to pinpoint it to try and fix it.

Here is my workflow:

Create widget locally in experience builder 1.14
Use command terminal for npm run build:prod
Add the prod-dist files to S3 bucket for hosting
In ArcGIS Enterprise Portal: New Item > Application > Experience Builder widget
Add the URL path to manifest.json

Brief system background:

ArcGIS Enterprise 11.4
Windows OS
AWS infrastructure

Error messages:

Network tab:

{ "error": { "code": 500, "message": "Exception. Unable to add or update item: f9814f6d4db946bfb1a3bacfb52be8b2", "details": [ "Exception. Unable to add or update item: f9814f6d4db946bfb1a3bacfb52be8b2" ] } }

ArcGIS Enterprise:

Error from ArcGIS Enterprise

Console:

Console error message

Re: Error adding Experience Builder Widget (11.4)

moremeowbell — Tue, 01 Jul 2025 12:49:15 GMT

I just saw in a previous post that this is an 11.4 issue specifically.

https://community.esri.com/t5/arcgis-enterprise-portal-questions/failed-to-add-or-update-item-index-6-out-of-bounds/td-p/1579934

topic Re: Error adding Experience Builder Widget (11.4) in Developers Questions

Error adding Experience Builder Widget (11.4)

Re: Error adding Experience Builder Widget (11.4)