'Could not identify file' updating group thumbnail from URL

DonMorrison1 — Tue, 04 Mar 2025 21:53:45 GMT

This may look like a duplicate post, which @Clubdebambos solved. But although that solution worked for updating item thumbnails, my script still fails when trying to update group thumbnails. Unfortunately there appears to be no equivalent "update_thumbnail" method for the group object. I updated my test script to target a group:

# To recreate problem # 1. Update the GROUP_ID variable below to an ArcGIS online group id that you own # 2. Copy this entire script file and paste it into the ArcGIS Pro (make sure you are signed in)python analysis window, hit enter twice # 3. Enter run_test() GROUP_ID = 'e3fb48baf4834208bb545894c3fb7e6a' from arcgis.gis import GIS import requests import os def test_upload_as_thumbnail (group, path): try: group.update(thumbnail = path) print (f"Upload {path} to {group.id} as thumbnail succeeded") except Exception as ex: print (f"Upload {path} to {group.id} as thumbnail failed: {str(ex)}") return def test_download (url): if url.lower().startswith('http'): try: requests.get(url).content print (f"Download {url} succeeded") except Exception as ex: print (f"Download {url} failed: {str(ex)}") return def run_test(): gis = GIS('pro') for url in ['http://maps.fieldmuseum.org/apps/ROWHWG/icons/FeatureLayer.png', # this one works 'https://rightofway.erc.uic.edu/wp-content/uploads/FeatureLayer_600_400.png', # this one fails 'https://rightofway.erc.uic.edu/wp-content/uploads/FeatureLayer.png']: # this one fails test_download (url) test_upload_as_thumbnail(gis.groups.get(GROUP_ID), url)

Re: 'Could not identify file' updating group thumbnail from URL

Clubdebambos — Wed, 05 Mar 2025 16:23:31 GMT

You should probably report this one 😅

Re: 'Could not identify file' updating group thumbnail from URL

DonMorrison1 — Thu, 06 Mar 2025 14:32:02 GMT

Yep - I just opened ESRI Case#03852350. I'll post back here if anything comes out of it

Re: 'Could not identify file' updating group thumbnail from URL

DonMorrison1 — Fri, 18 Apr 2025 19:01:33 GMT

ESRI support basically punted on this. I was able to work around the problem by adding code to download the images to the local file system then doing the upload from there.

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'Could not identify file' updating group thumbnail from URL

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