I have been asked to delete a file that has incorrect legal information on it from a website so it has to go. My users could not do it.
The site is running drupal 8.9.13 and I have installed the module file_delete
When I try to delete the file I get the following error message:
The file ND Pamphlet re Employee Assistance Program .pdf cannot be deleted because it is in use by the following modules: file. Click here to see its usages.
There is one reference to a node that does not use this file. Though it may have once been linked to on that node.
I tried deleting the node itself - as it was relatively small and I thought it could be recreated. The error however remains. When I now look at the usage information for the file I see the following:
Caches have been cleared and cron run several times. How do I remove this file and this non-existent reference?
Additionally, why does this happen and how can it be avoided in the future?