C:\Bitnami\redmine4108\apps\redmine\htdocs\plugins>bundle install --without deve lopment test --no-deployment Your Gemfile lists the gem ffi (>= 0) more than once. You should probably keep only one of them. While it's not a problem now, it could cause errors if you change the version of one of them later. Fetching gem metadata from http://rubygems.org/.......... Fetching gem metadata from https://rubygems.org/.......... Fetching gem metadata from http://rubygems.org/.. Fetching gem metadata from https://rubygems.org/.. Resolving dependencies... Using rake 13.0.1 Using concurrent-ruby 1.1.5 Using i18n 1.6.0 Using minitest 5.13.0 Using thread_safe 0.3.6 Using tzinfo 1.2.5 Using activesupport 5.2.4.1 Using builder 3.2.4 Using erubi 1.9.0 Using mini_portile2 2.4.0 Using nokogiri 1.10.7 (x64-mingw32) Using rails-dom-testing 2.0.3 Using crass 1.0.5 Using loofah 2.4.0 Using rails-html-sanitizer 1.3.0 Using actionview 5.2.4.1 Using rack 2.0.8 Using rack-test 1.1.0 Using actionpack 5.2.4.1 Using nio4r 2.5.2 (x64-mingw32) Using websocket-extensions 0.1.4 Using websocket-driver 0.7.1 (x64-mingw32) Using actioncable 5.2.4.1 Using globalid 0.4.2 Using activejob 5.2.4.1 Using mini_mime 1.0.2 Using mail 2.7.1 Using actionmailer 5.2.4.1 Using method_source 0.9.2 Using thor 1.0.1 Using railties 5.2.4.1 Using actionpack-xml_parser 2.0.1 Using activemodel 5.2.4.1 Using arel 9.0.0 Using activerecord 5.2.4.1 Using mimemagic 0.3.3 Using marcel 0.3.3 Using activestorage 5.2.4.1 Using public_suffix 4.0.1 Using addressable 2.7.0 Using bundler 1.16.6 Using css_parser 1.7.1 Using csv 3.1.2 Using daemons 1.3.1 Using erubis 2.7.0 Fetching et-orbi 1.2.4 Installing et-orbi 1.2.4 Using eventmachine 1.2.7 (x64-mingw32) Using ffi 1.11.3 (x64-mingw32) Fetching raabro 1.1.6 Installing raabro 1.1.6 Fetching fugit 1.3.4 Installing fugit 1.3.4 Using temple 0.8.2 Using tilt 2.0.10 Using haml 5.1.2 Using sexp_processor 4.14.1 Using ruby_parser 3.14.2 Using html2haml 2.2.0 Using haml-rails 2.0.1 Using holidays 8.2.0 Using htmlentities 4.3.4 Using liquid 2.6.3 Using mini_magick 4.9.5 Using mysql2 0.5.2 (x64-mingw32) Using net-ldap 0.16.2 Using ruby-openid 2.9.2 Using rack-openid 1.4.2 Using sprockets 4.0.0 Using sprockets-rails 3.2.1 Using rails 5.2.4.1 Using rbpdf-font 1.19.1 Using rbpdf 1.20.1 Using redcarpet 3.5.0 (x64-mingw32) Using rubyzip 2.0.0 Using redmine_crm 0.0.53 Using request_store 1.4.1 Using roadie 3.5.1 Using roadie-rails 2.1.0 Using rouge 3.12.0 Fetching rufus-scheduler 3.5.2 Installing rufus-scheduler 3.5.2 Using thin 1.7.2 (x64-mingw32) Using tzinfo-data 1.2019.3 Using vcard 0.2.16 Updating files in vendor/cache * et-orbi-1.2.4.gem * raabro-1.1.6.gem * fugit-1.3.4.gem * rufus-scheduler-3.5.2.gem Bundle complete! 38 Gemfile dependencies, 81 gems now installed. Gems in the groups development, test and sqlite were not installed. Use `bundle info [gemname]` to see where a bundled gem is installed. Warning: the gem 'et-orbi' was found in multiple sources. Installed from: http://rubygems.org/ Also found in: * https://rubygems.org/ You should add a source requirement to restrict this gem to your preferred sourc e. For example: gem 'et-orbi', :source => 'http://rubygems.org/' Then uninstall the gem 'et-orbi' (or delete all bundled gems) and then install a gain. Warning: the gem 'raabro' was found in multiple sources. Installed from: http://rubygems.org/ Also found in: * https://rubygems.org/ You should add a source requirement to restrict this gem to your preferred sourc e. For example: gem 'raabro', :source => 'http://rubygems.org/' Then uninstall the gem 'raabro' (or delete all bundled gems) and then install ag ain. Warning: the gem 'fugit' was found in multiple sources. Installed from: http://rubygems.org/ Also found in: * https://rubygems.org/ You should add a source requirement to restrict this gem to your preferred sourc e. For example: gem 'fugit', :source => 'http://rubygems.org/' Then uninstall the gem 'fugit' (or delete all bundled gems) and then install aga in. Warning: the gem 'rufus-scheduler' was found in multiple sources. Installed from: http://rubygems.org/ Also found in: * https://rubygems.org/ You should add a source requirement to restrict this gem to your preferred sourc e. For example: gem 'rufus-scheduler', :source => 'http://rubygems.org/' Then uninstall the gem 'rufus-scheduler' (or delete all bundled gems) and then i nstall again. C:\Bitnami\redmine4108\apps\redmine\htdocs\plugins>