When running plugin under Redmine 3.3.2 I am getting "Internal error" page when trying to create a new milestone. Error log from the server:
Started GET "/projects/office/milestones/new?back_url=" for ::1 at 2017-03-22 18:10:57 -0700
LoadError (cannot load such file -- RMagick):
plugins/advanced_roadmap/lib/advanced_roadmap/gruff/base.rb:2:in `<top (required)>'
plugins/advanced_roadmap/lib/advanced_roadmap/gruff/pie.rb:1:in `<top (required)>'
plugins/advanced_roadmap/app/controllers/milestones_controller.rb:10:in `<top (required)>'
Thank you for your comments. I do not have rmagick installed at all. The rmagick is not easy to install on Mac OS X and it is not essential for my work so I decided not to install it. Redmine and all the rest of plugins do work without rmagick.
Is it possible to use/install Advanced Roadmap plugin without rmagick?