Redmine

Run command:

cd plugins
bundle exec rake redmine:plugins:migrate RAILS_ENV=production

I get the error:

NoMethodError: undefined method `migrate' for Redmine::Plugin::Migrator:Class
/home/developer/websites/redmine/lib/redmine/plugin.rb:482:in `migrate_plugin'
/home/developer/websites/redmine/lib/redmine/plugin.rb:454:in `migrate'
/home/developer/websites/redmine/lib/redmine/plugin.rb:468:in `block in migrate'
/home/developer/websites/redmine/lib/redmine/plugin.rb:467:in `each'
/home/developer/websites/redmine/lib/redmine/plugin.rb:467:in `migrate'
/home/developer/websites/redmine/lib/tasks/redmine.rake:135:in `block (3 levels) in <top (required)>'
/usr/local/rvm/gems/ruby-2.5.1/gems/rake-12.3.1/exe/rake:27:in `<top (required)>'
/usr/local/rvm/gems/ruby-2.5.1/bin/ruby_executable_hooks:15:in `eval'
/usr/local/rvm/gems/ruby-2.5.1/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => redmine:plugins:migrate
(See full trace by running task with --trace)