Tridion CM reports "Couldn't retrieve data from 1 datasources"

Question

When opening various popups in the Tridion Explorer, the message centre displays the message:

Couldn't retrieve data from 1 datasources

What does this mean, and how can I prevent it?

Edit: Yes - everyone who said UGC was right. In fact, the problem was not with referencing the web services, but that they weren't working correctly. So if you're setting up UGC, make sure you check (with your browser) that the OData services are not just available, but that they respond correctly to queries.

Answer 1

In my experience that is related to UGC too. However though, it is very much related to Tridion. Namely, when the CME tries to access the CD Webservice to retrieve UGC stats/settings for Components or Pages. If the CD Webservice does not respond, then such an error shows up in the Message Center.

Check your %TRIDION_HOME%\web\WebUI\Models\UGC\Configuration\DataSources.xml