The 2026 Drupal Business Survey is open. Your response will help shape the future of the Drupal business ecosystem.With 6.x-1.7 file_attach module throws "An illegal choice has been detected. Please contact the site administrator" error. Reverting my previous installed version (6.x-1.4) and the problem is gone. dblog doesn't give any useful info except the fact that this error is related to form submission state and the illegal choice is the attached file.Hope it makes more sense to someone who can properly debug it.
Comments
Comment #1
charos commentedChanging this to minor since pressing "save" again, the node is created normally.
Comment #1.0
charos commentedCorrectly state the reverted version of the module (6.x-1.4) where the issue disappears.
Comment #2
damienmckennaI'm seeing this where it seems the file has already been attached when _form_validate() runs, so the $options list no longer includes the filename that was selected, thus leading to the error.
Comment #3
damienmckennaFYI I'm seeing this with the Video module on D7.
Comment #4
ph7 commentedI observed the exact same behaviour after uploading a remote image on a content type node. The content type also contains a entity reference field that is filled via an select view. When I try to save the node the "An illegal choice has been detected" error message appears and the data/selection on the entity reference field is cleared. Another hit on the save button stores the node but the data on entity reference field is gone. I have to edit the node again to restore the previous selection on the entity field. I can then save without any problem. So, it kinda works but it's not user friendly.