- Issue created by @ytsurk
The libraries API module → was supported in D7 and never really got adapted to the D8 implementation.
I'm not aware of any other module providing a jstree libraray.
Remove the obsolete hook https://www.drupal.org/project/libraries
and other code related to libraries api.
Any libraries API jstree resource will no longer be used, and this module will fallback to the CDN usage.
Still you have the option to install jstree according to the instructions on this modules project page.
Active
2.1
Code