I am assisting a project to upgrade kanboard 1.2.5 to 1.2.7.
After the upgrade, our user reported that he cannot view
a previously produced attachment, but can do so on a newly created attachment.
In checking my notes, I realised that I have not copied the attachments
from the old folder /var/www/html/kanboard-1.2.5/data/files/tasks to
Having rsynced the attachments, and restarted the web server, I can now download
the attachment, and open it for view. But when I click on the “View file”
option on the attachment, it opens a new window, displays a blank page.
Again, I can choose the “Download” option to save it as a file, then open it to view is fine.
I did check the /var/www/html/kanboard/data/debug.log, it only shows two errors:
[2019-01-08 11:42:22] [critical] GroupAssign: Unable to load this plugin class: \Kanboard\Plugin\GroupAssign\Plugin
[2019-01-08 11:42:22] [critical] Group_assign-master: Unable to load this plugin class: \Kanboard\Plugin\Group_assign-master\Plugin
There is no file under plugins/GroupAssign/, just an empty folder and
plugins/Group_assign-master contains the unzipped files from Group_assign-master.zip:
root@proj data]# ls …/plugins/Group_assign-master
Action _config.yml Filter LICENSE Plugin.php Schema Test
Assets Controller Helper Model README.md Template
Not sure these errors are relevant to the pdf attachment viewing though.
Any advice will be much appreciated.