redmine plugin 설치시 에러 관련 Redmine::PluginRequirementError# bundle exec rake db:migrate RAILS_ENV=production (in /opt/redmine) rake aborted! Redmine::PluginRequirementError: easy_wbs plugin requires the easy_mindmup plugin /opt/redmine/lib/redmine/plugin.rb:280:in `rescue in requires_redmine_plugin' /opt/redmine/lib/redmine/plugin.rb:277:in `requires_redmine_plugin' /opt/redmine/plugins/wbs/init.r..
