from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `block in require'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:236:in `load_dependency'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `require'
        from /usr/lib/ruby/vendor_ruby/active_record/connection_adapters/mysql2_adapter.rb:3:in `<top (required)>'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `require'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `block in require'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:236:in `load_dependency'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `require'
        from /usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract/connection_specification.rb:48:in `resolve_hash_connection'
        from /usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract/connection_specification.rb:39:in `resolve_string_connection'
        from /usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract/connection_specification.rb:23:in `spec'
        from /usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract/connection_specification.rb:127:in `establish_connection'
        from /usr/lib/ruby/vendor_ruby/active_record/railtie.rb:82:in `block (2 levels) in <class:Railtie>'
        from /usr/lib/ruby/vendor_ruby/active_support/lazy_load_hooks.rb:36:in `instance_eval'
        from /usr/lib/ruby/vendor_ruby/active_support/lazy_load_hooks.rb:36:in `execute_hook'
        from /usr/lib/ruby/vendor_ruby/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
        from /usr/lib/ruby/vendor_ruby/active_support/lazy_load_hooks.rb:42:in `each'
        from /usr/lib/ruby/vendor_ruby/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
        from /usr/lib/ruby/vendor_ruby/active_record/base.rb:721:in `<top (required)>'
        from /usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
        from /usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
        from /usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
        from /usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
        from /usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:245:in `load'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:245:in `block in load'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:236:in `load_dependency'
        from /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:245:in `load'
        from /usr/lib/ruby/vendor_ruby/rails/engine.rb:588:in `block (2 levels) in <class:Engine>'
        from /usr/lib/ruby/vendor_ruby/rails/engine.rb:587:in `each'
        from /usr/lib/ruby/vendor_ruby/rails/engine.rb:587:in `block in <class:Engine>'
        from /usr/lib/ruby/vendor_ruby/rails/initializable.rb:30:in `instance_exec'
        from /usr/lib/ruby/vendor_ruby/rails/initializable.rb:30:in `run'
        from /usr/lib/ruby/vendor_ruby/rails/initializable.rb:55:in `block in run_initializers'
        from /usr/lib/ruby/vendor_ruby/rails/initializable.rb:54:in `each'
        from /usr/lib/ruby/vendor_ruby/rails/initializable.rb:54:in `run_initializers'
        from /usr/lib/ruby/vendor_ruby/rails/application.rb:136:in `initialize!'
        from /usr/lib/ruby/vendor_ruby/rails/railtie/configurable.rb:30:in `method_missing'
        from /usr/share/redmine/config/environment.rb:14:in `<top (required)>'
        from /usr/share/redmine/config.ru:4:in `require'
        from /usr/share/redmine/config.ru:4:in `block in <main>'
        from /usr/lib/ruby/vendor_ruby/rack/builder.rb:51:in `instance_eval'
        from /usr/lib/ruby/vendor_ruby/rack/builder.rb:51:in `initialize'
        from /usr/share/redmine/config.ru:1:in `new'
        from /usr/share/redmine/config.ru:1:in `<main>'
        from /usr/lib/ruby/vendor_ruby/rack/builder.rb:40:in `eval'
        from /usr/lib/ruby/vendor_ruby/rack/builder.rb:40:in `parse_file'
        from /usr/lib/ruby/vendor_ruby/rack/server.rb:200:in `app'
        from /usr/lib/ruby/vendor_ruby/rails/commands/server.rb:46:in `app'
        from /usr/lib/ruby/vendor_ruby/rack/server.rb:301:in `wrapped_app'
        from /usr/lib/ruby/vendor_ruby/rack/server.rb:252:in `start'
        from /usr/lib/ruby/vendor_ruby/rails/commands/server.rb:70:in `start'
        from /usr/lib/ruby/vendor_ruby/rails/commands.rb:55:in `block in <top (required)>'
        from /usr/lib/ruby/vendor_ruby/rails/commands.rb:50:in `tap'
        from /usr/lib/ruby/vendor_ruby/rails/commands.rb:50:in `<top (required)>'
        from script/rails:6:in `require'
        from script/rails:6:in `<main>'