mysql2 gem 未加载安装 redmine-agile
mysql2 gem not loaded installing redmine-agile
我正在尝试安装 Redmine Agile plugin，但无法完成第 4 步：
/var/www/html/redmine$ sudo bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
(in /usr/share/redmine)
rake aborted!
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Caused by:
Gem::LoadError: mysql2 is not part of the bundle. Add it to your Gemfile.
/var/lib/gems/2.3.0/gems/bundler-1.16.2/lib/bundler/rubygems_integration.rb:408:in `block (2 levels) in replace_gem'
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Tasks: TOP => redmine:plugins:migrate => environment
(See full trace by running task with --trace)
我以前无法 sudo gem install mysql2，但通过关注 .
解决了这个问题
我确实尝试添加 gem "mysql2"，但这并没有解决问题。
/var/www/html/redmine$ cat plugins/redmine_agile/Gemfile
gem "redmine_crm"
gem "mysql2"
我不知道 and ensure its version is at the minimum required by ActiveRecord 是怎么回事。我不确定如何检查那是什么。我知道我可以在 Gemfile 中设置 gem 的版本，但我不知道它会被设置成什么。
我在 Ubuntu 16.04.4 LTS，MySQL 5.7.22。我正在使用 similar to this answer.
服务 Redmine
更新
当我尝试 rake 为 www-data 时，我得到的错误更改为
www-data@host:/usr/share/redmine/public/plugins/redmine_agile$ bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
`/home/ubuntu` is not writable.
Bundler will use `/tmp/bundler/home/ubuntu' as your home directory temporarily.
Could not find gem 'redmine_crm' in any of the gem sources listed in your Gemfile.
Run `bundle install` to install missing gems.
（尝试从 /var/www/html/redmine 到 rake 一直让我收到 mysql2 错误。）
然后我尝试安装 redmine_crm。我不能以 www-data 的身份执行此操作，所以我以 root 身份执行此操作：
/var/www/html/redmine/plugins/redmine_agile$ sudo gem install redmine_crm
然后我尝试了 bundle install 但得到了
There was an error while trying to write to
`/usr/share/redmine/public/plugins/redmine_agile/Gemfile.lock`. It is likely that you need to grant
write permissions for that path.
所以我 运行 作为 root。
/var/www/html/redmine/plugins/redmine_agile$ sudo bundle install
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and installing your bundle as
root will break this application for all non-root users on this machine.
Resolving dependencies...
Using rake 12.3.2
Using i18n 0.7.0
Using json 1.8.3
Using minitest 5.11.3
Using thread_safe 0.3.6
Using tzinfo 1.2.5
Using activesupport 4.2.6
Using builder 3.2.3
Using erubis 2.7.0
Using nokogiri 1.6.7.2
Using rails-deprecated_sanitizer 1.0.3
Using rails-dom-testing 1.0.6
Using crass 1.0.4
Using loofah 2.2.2
Using rails-html-sanitizer 1.0.4
Using actionview 4.2.6
Using rack 1.6.4
Using rack-test 0.6.3
Using actionpack 4.2.6
Using globalid 0.4.1
Using activejob 4.2.6
Using mini_mime 1.0.0
Using mail 2.7.0
Using actionmailer 4.2.6
Using activemodel 4.2.6
Using arel 6.0.3
Using activerecord 4.2.6
Using bundler 1.16.2
Using concurrent-ruby 1.0.5
Using liquid 2.6.3
Using mysql2 0.5.2
Using thor 0.20.0
Using railties 4.2.6
Using sprockets 3.7.2
Using sprockets-rails 3.2.1
Using rails 4.2.6
Using redmine_crm 0.0.42
Bundle complete! 2 Gemfile dependencies, 37 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
尝试 rake 然后我得到了一个不同的错误。
ubuntu@host:/var/www/html/redmine/plugins/redmine_agile$ sudo bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
(in /usr/share/redmine)
rake aborted!
NameError: uninitialized constant ActionDispatch::XmlParamsParser
/usr/share/redmine/config/application.rb:55:in `<class:Application>'
/usr/share/redmine/config/application.rb:8:in `<module:RedmineApp>'
/usr/share/redmine/config/application.rb:7:in `<top (required)>'
/usr/share/redmine/Rakefile:4:in `require'
/usr/share/redmine/Rakefile:4:in `<top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
(See full trace by running task with --trace)
尝试从 redmine 每个 this answer 目录失败并出现 mysql2 gem 错误。
ubuntu@host:/var/www/html/redmine/plugins/redmine_agile$ cd ../..
ubuntu@host:/var/www/html/redmine$ sudo bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
(in /usr/share/redmine)
rake aborted!
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Caused by:
Gem::LoadError: mysql2 is not part of the bundle. Add it to your Gemfile.
/var/lib/gems/2.3.0/gems/bundler-1.16.2/lib/bundler/rubygems_integration.rb:408:in `block (2 levels) in replace_gem'
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Tasks: TOP => redmine:plugins:migrate => environment
(See full trace by running task with --trace)
这个错误分明是你没有安装Gem 'mysql2'你有运行命令bundle install吗？你能试试关注吗
在您的项目根文件夹中，请运行遵循命令
gem list mysql2
它应该会向您显示本地 gems 并且还会列出 mysql2 已安装
如果没有安装，那意味着你要么不能安装mysql2，要么你没有运行 bundle install命令。也许你可以尝试以下
在您的 Gemfile
中添加以下行
gem "mysql2", "0.3.14"
现在运行遵循命令
bundle install
现在检查mysql2是否真的安装了
gem list mysql2
如果是那么一切都很好，希望它有效。
不必要地使用 sudo 到 运行 作为 root 的命令是导致问题的常见原因，以解决某些 gems。
在几乎所有情况下，您不应该不使用 sudo 到 运行 您的佣金任务。相反，使用通常 运行 应用服务器的用户，例如www-data。
# first change to the user that usually runs your app
sudo -u www-data /bin/bash -i
/var/www/html/redmine
# Now run your rake task (without prefixing it with sudo)
bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
我正在尝试安装 Redmine Agile plugin，但无法完成第 4 步：
/var/www/html/redmine$ sudo bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
(in /usr/share/redmine)
rake aborted!
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Caused by:
Gem::LoadError: mysql2 is not part of the bundle. Add it to your Gemfile.
/var/lib/gems/2.3.0/gems/bundler-1.16.2/lib/bundler/rubygems_integration.rb:408:in `block (2 levels) in replace_gem'
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Tasks: TOP => redmine:plugins:migrate => environment
(See full trace by running task with --trace)
我以前无法 sudo gem install mysql2，但通过关注
我确实尝试添加 gem "mysql2"，但这并没有解决问题。
/var/www/html/redmine$ cat plugins/redmine_agile/Gemfile
gem "redmine_crm"
gem "mysql2"
我不知道 and ensure its version is at the minimum required by ActiveRecord 是怎么回事。我不确定如何检查那是什么。我知道我可以在 Gemfile 中设置 gem 的版本，但我不知道它会被设置成什么。
我在 Ubuntu 16.04.4 LTS，MySQL 5.7.22。我正在使用 similar to this answer.
服务 Redmine更新
当我尝试 rake 为 www-data 时，我得到的错误更改为
www-data@host:/usr/share/redmine/public/plugins/redmine_agile$ bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
`/home/ubuntu` is not writable.
Bundler will use `/tmp/bundler/home/ubuntu' as your home directory temporarily.
Could not find gem 'redmine_crm' in any of the gem sources listed in your Gemfile.
Run `bundle install` to install missing gems.
（尝试从 /var/www/html/redmine 到 rake 一直让我收到 mysql2 错误。）
然后我尝试安装 redmine_crm。我不能以 www-data 的身份执行此操作，所以我以 root 身份执行此操作：
/var/www/html/redmine/plugins/redmine_agile$ sudo gem install redmine_crm
然后我尝试了 bundle install 但得到了
There was an error while trying to write to
`/usr/share/redmine/public/plugins/redmine_agile/Gemfile.lock`. It is likely that you need to grant
write permissions for that path.
所以我 运行 作为 root。
/var/www/html/redmine/plugins/redmine_agile$ sudo bundle install
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and installing your bundle as
root will break this application for all non-root users on this machine.
Resolving dependencies...
Using rake 12.3.2
Using i18n 0.7.0
Using json 1.8.3
Using minitest 5.11.3
Using thread_safe 0.3.6
Using tzinfo 1.2.5
Using activesupport 4.2.6
Using builder 3.2.3
Using erubis 2.7.0
Using nokogiri 1.6.7.2
Using rails-deprecated_sanitizer 1.0.3
Using rails-dom-testing 1.0.6
Using crass 1.0.4
Using loofah 2.2.2
Using rails-html-sanitizer 1.0.4
Using actionview 4.2.6
Using rack 1.6.4
Using rack-test 0.6.3
Using actionpack 4.2.6
Using globalid 0.4.1
Using activejob 4.2.6
Using mini_mime 1.0.0
Using mail 2.7.0
Using actionmailer 4.2.6
Using activemodel 4.2.6
Using arel 6.0.3
Using activerecord 4.2.6
Using bundler 1.16.2
Using concurrent-ruby 1.0.5
Using liquid 2.6.3
Using mysql2 0.5.2
Using thor 0.20.0
Using railties 4.2.6
Using sprockets 3.7.2
Using sprockets-rails 3.2.1
Using rails 4.2.6
Using redmine_crm 0.0.42
Bundle complete! 2 Gemfile dependencies, 37 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
尝试 rake 然后我得到了一个不同的错误。
ubuntu@host:/var/www/html/redmine/plugins/redmine_agile$ sudo bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
(in /usr/share/redmine)
rake aborted!
NameError: uninitialized constant ActionDispatch::XmlParamsParser
/usr/share/redmine/config/application.rb:55:in `<class:Application>'
/usr/share/redmine/config/application.rb:8:in `<module:RedmineApp>'
/usr/share/redmine/config/application.rb:7:in `<top (required)>'
/usr/share/redmine/Rakefile:4:in `require'
/usr/share/redmine/Rakefile:4:in `<top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
(See full trace by running task with --trace)
尝试从 redmine 每个 this answer 目录失败并出现 mysql2 gem 错误。
ubuntu@host:/var/www/html/redmine/plugins/redmine_agile$ cd ../..
ubuntu@host:/var/www/html/redmine$ sudo bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production
(in /usr/share/redmine)
rake aborted!
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Caused by:
Gem::LoadError: mysql2 is not part of the bundle. Add it to your Gemfile.
/var/lib/gems/2.3.0/gems/bundler-1.16.2/lib/bundler/rubygems_integration.rb:408:in `block (2 levels) in replace_gem'
/usr/share/redmine/lib/plugins/acts_as_activity_provider/init.rb:2:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `eval'
/usr/share/redmine/config/initializers/00-core_plugins.rb:12:in `block in <top (required)>'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `each'
/usr/share/redmine/config/initializers/00-core_plugins.rb:2:in `<top (required)>'
/usr/share/redmine/config/environment.rb:14:in `<top (required)>'
/usr/share/redmine/lib/tasks/redmine.rake:52:in `block (2 levels) in <top (required)>'
/var/lib/gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
Tasks: TOP => redmine:plugins:migrate => environment
(See full trace by running task with --trace)
这个错误分明是你没有安装Gem 'mysql2'你有运行命令bundle install吗？你能试试关注吗
在您的项目根文件夹中，请运行遵循命令
gem list mysql2
它应该会向您显示本地 gems 并且还会列出 mysql2 已安装
如果没有安装，那意味着你要么不能安装mysql2，要么你没有运行 bundle install命令。也许你可以尝试以下
在您的 Gemfile
gem "mysql2", "0.3.14"
现在运行遵循命令
bundle install
现在检查mysql2是否真的安装了
gem list mysql2
如果是那么一切都很好，希望它有效。
不必要地使用 sudo 到 运行 作为 root 的命令是导致问题的常见原因，以解决某些 gems。
在几乎所有情况下，您不应该不使用 sudo 到 运行 您的佣金任务。相反，使用通常 运行 应用服务器的用户，例如www-data。
# first change to the user that usually runs your app
sudo -u www-data /bin/bash -i
/var/www/html/redmine
# Now run your rake task (without prefixing it with sudo)
bundle exec rake redmine:plugins NAME=redmine_agile RAILS_ENV=production