使用MySQL運行Rails服務器時發生錯誤

-7

[email protected]:~/Desktop/website/myweb$ rails server 
/home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/mysql2-0.4.5/lib/mysql2.rb:31:in `require': libmysqlclient.so.20: cannot open shared object file: No such file or directory - /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/mysql2-0.4.5/lib/mysql2/mysql2.so (LoadError) 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/mysql2-0.4.5/lib/mysql2.rb:31:in `<top (required)>' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/bundler-1.15.1/lib/bundler/runtime.rb:82:in `require' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/bundler-1.15.1/lib/bundler/runtime.rb:82:in `block (2 levels) in require' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/bundler-1.15.1/lib/bundler/runtime.rb:77:in `each' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/bundler-1.15.1/lib/bundler/runtime.rb:77:in `block in require' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/bundler-1.15.1/lib/bundler/runtime.rb:66:in `each' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/bundler-1.15.1/lib/bundler/runtime.rb:66:in `require' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/bundler-1.15.1/lib/bundler.rb:108:in `require' 
    from /home/dani/Desktop/website/myweb/config/application.rb:7:in `<top (required)>' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:88:in `require' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:88:in `block in server' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `tap' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:85:in `server' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:49:in `run_command!' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.2/lib/rails/commands.rb:18:in `<top (required)>' 
    from /home/dani/Desktop/website/myweb/bin/rails:9:in `require' 
    from /home/dani/Desktop/website/myweb/bin/rails:9:in `<top (required)>' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in `load' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in `call' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client/command.rb:7:in `call' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/client.rb:30:in `run' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/bin/spring:49:in `<top (required)>' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/binstub.rb:31:in `load' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/spring-2.0.1/lib/spring/binstub.rb:31:in `<top (required)>' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/dani/.rbenv/versions/2.4.0/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:68:in `require' 
    from /home/dani/Desktop/website/myweb/bin/spring:15:in `<top (required)>' 
    from bin/rails:3:in `load' 
    from bin/rails:3:in `<main>'

來源

2017-06-06 Daniel Saeedi

從終端運行'sudo apt-get install libmysqlclient-dev' – Emu

發佈的專業提示：（1）格式化控制檯輸出和日誌文件，在編輯器中有一個按鈕可以這樣做; （2）除了標題之外，沒有上下文的錯誤轉儲看起來並不是很努力，並且可能會吸引低價提示，（3）讀者知道你需要幫助，所以「請幫助我」一般只是被理解爲乞求，（4）告訴我們你爲解決問題所做的研究。您是否搜索錯誤？ – halfer

[大量重複]（https://duckduckgo.com/?q=rails+libmysqlclient.so.20%3A+cannot+open+shared+object+file%3A+No+such+file）。 – halfer

可能libmysqlclient未安裝在您的系統中。使用以下命令安裝它：

sudo apt-get install libmysqlclient-dev

乾杯！

來源

2017-06-06 06:15:04 Aashish

使用MySQL運行Rails服務器時發生錯誤

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