Camunda 7.21 JS error in task list "cannot read proprties of undefined... reading assignee"

Camunda 7 Topics
1

Hello,

I am trying to upgrade to Camunda 7.21. When selecting a task in the tasklist, the following error occurs in the browser JS console:

deps.js?bust=7.21.0:2  TypeError: Cannot read properties of undefined (reading 'assignee')
    at i.hasAssignee (camunda-tasklist-bootstrap.js?bust=7.21.0:2:309622)
    at fn0 (eval at compile (deps.js?bust=7.21.0:2:415977), <anonymous>:4:301)
    at deps.js?bust=7.21.0:2:402975
    at u.$digest (deps.js?bust=7.21.0:2:411207)
    at u.$apply (deps.js?bust=7.21.0:2:413004)
    at c.done (camunda-tasklist-bootstrap.js?bust=7.21.0:2:110055)
    at camunda-tasklist-bootstrap.js?bust=7.21.0:2:5134
    at S.callback (deps.js?bust=7.21.0:159:1519992)
    at S.<anonymous> (deps.js?bust=7.21.0:159:1518057)
    at t.emit (deps.js?bust=7.21.0:159:527811)

No other errors show up in the console, which could indicate missing dependencies . My camunda configuration is using spring boot 3.2.2.
I have also created a new task list filter with default settings, but the error also occurs for this new filter.

Does anyone have an idea what could cause this error?

2

What version did you upgrade from?
Have you applied all the fixes to the breaking changes? There’s a few other threads on the board about deps.js?bust= which seems to suggest that if there are any historical WebApp customizations they need tweaks before the page will work.

3

I have upgraded vom Version 7.18 to 7.21. Even after removing all customizations for the tasklist’s index.html the error remains, i.e.: even when deploying the standard web application this error occurs.

4

Have you tried clearing the browser cache?
There was something in the forums that has to be reconfigured if you have any custom code, but I can’t find it now.
If this is a blocker for you, I would suggest contacting Camunda support

5

I consider this a bug in the task list web application. I was in contact with a consultant (not from camunda directly), and he could reproduce the error message in a non-customized installed instance of camunca 7.21. After some tests it seems that the error does not prevent tasklist from working correctly.

6

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