After upgrading JIRA 3.13.2 to JIRA 6.0, Few gadgets throws an error as shown below,
Error loading gadget from rest/gadget/1.0/legacy/spec/com.atlassian.jira.ext.charting:averagenumbertimesinstatus.xml: org.apache.shindig.gadgets.GadgetException: Unable to retrieve gadget xml. HTTP error 404
Ah, good, you've ruled out most of the causes I've run into, which leaves only one I can think of, where, on upgrading, it seems to get the new REST urls incorrect for some gadgets. I've never worked out if it's the selected filter or the actual gadget itself that is using the wrong url.
There's not a lot you can do about that other than delete and re-add the gadget I'm afraid. Although it may be useful if you copy the dashboard with the broken gadget(s) and see if that offers you the option to reconfigure them - that might tell you the current configuration of it, so you can delete and re-add with the same report.
In the past, Portfolio for Jira required a high degree of detail–foresight that was unrealistic for many businesses to have–in order to produce a reliable long-term roadmap. We're tur...
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