The JSONPath library is not installed

it seems our JSON feed to recuperate the CERN News of type Engineering is not working anymore since the upgrade to Drupal 9 on CERN Engineering News | Engineering Department whereas the data is still available on
The error message I saw is “The JSONPath library is not installed.”
How can we fix that?
Thanks and best regards,

Hi Cat

Apologies for the belated response; please check and confirm all packages are installed correctly. We have rolled out a centralised update which contains feeds_ex and the most common libraries, so this should be present on all websites.


Hi Joachim,
thanks for your reply. I had a look at the packages, they are all there.
I realized that the module itself of feeds_ex needs updating in the meantime which I did. Trying to import now gave

An AJAX HTTP error occurred.
HTTP Result Code: 200
Debugging information follows.
Path: /batch?id=2060&op=do_nojs&op=do
StatusText: OK

and I can’t run the import again, it’s not available anymore, same for another feed using XML
Any ideas?