我从production中的Passenger得到了这个错误no such file to load -- mysql2/mysql2。有关此错误的详细信息/var/www/releases/20120103021152/vendor/cache/ruby/1.9.1/gems/mysql2-0.2.18/lib/mysql2.rb,这是真的
hele/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/connection_specification.rb:177:in rescue in spec: Specified mysql2 for database adapter, but the gem is not loaded.(Gem::LoadE
我正在尝试开始使用数据库,并且还在学习ruby on rails。但在这一步中,我在cmd中运行以下代码时遇到了错误。注意:我使用的是64位Windows 8.1。Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not lo
严格按照教程进行操作,并尝试运行rails服务器,但得到以下错误:
NOTE: Gem.source_index is deprecated, use Specification./Library/Ruby/Gems/1.8/gems/mysql2-0.2.11/lib/mysql2/mysql2.bundle: dlopen(/Library/Ruby/Gems/1.8
我的rails应用使用的是ruby 2.6.3,rails 5.2.3,MySQL版本是5.7.27。LoadError: Error loading the 'mysql2' Active Record adapter. Missing a gem it depends on?active_record/connection_adapters/mysql2_adapter.rb
bin/rails:4:in `<