After i remove the plugin Redmine People plugin, Knowledge show below error message
Mysql2::Error: Table 'redmine.taggings' doesn't exist: SHOW FULL FIELDS FROM taggings
@hello2jack this is because both plugins are using a tagging library, and removing one will purge the taggings table the other needs. This is a known issue, and sadly there's no "easy" solution yet.
After i remove the plugin Redmine People plugin, Knowledge show below error message Mysql2::Error: Table 'redmine.taggings' doesn't exist: SHOW FULL FIELDS FROM
taggings