使用mysql db創建新的應用程序導軌時出錯

大家好我是新來的導軌，我安裝了一切ruby rails mysql和一切都做得很好，健康，當我試圖創建一個新的應用程序'rails new blog'for例如一切都做得很好，但每當我添加'-d mysql'它會發現並知道一切都安裝好錯誤使用mysql db創建新的應用程序導軌時出錯

Aikers-MBP：〜Aiker $ brew install mysql Warning：mysql-5.7.16 already installed Aikers-MBP：〜愛克爾$

在這裏，我試圖安裝

的安裝mysql2（0.4.5）時發生錯誤，並且Bundler無法繼續。確保gem install mysql2 -v '0.4.5'成功捆綁之前。 Aikers-MBP：kar Aiker $ rake db create 無法在您的Gemfile中列出的或本機上可用的任何Gem源中找到gem'rails（= 4.2.6）'。運行bundle install安裝缺失的寶石。 Aikers-MBP：kar Aiker $ gem install mysql2 -v'0.4.5' 構建原生擴展。這可能需要一段時間... 錯誤：安裝mysql2時出錯：錯誤：無法構建gem本機擴展。

來源

2016-11-20 Aiker

當它提供錯誤「無法構建gem原生擴展名」時，它會給出一個長錯誤。請複製粘貼錯誤，以便我們知道系統上缺少的內容。 –

是的，這是整個錯誤 – Aiker

您的系統無法找到存在於OpenSSL中的lssl庫。爲了解決這個問題，你需要運行：

brew install openssl

在此之後嘗試安裝mysql2寶石。如果這仍然失敗，那麼你可能需要通過運行重新安裝的Xcode命令行工具：

xcode-select --install

希望這能解決您的安裝問題。 :)

來源

2016-11-21 07:33:11

這真的解決了這個問題非常感謝你:) – Aiker

樂意幫助@Aiker –

Gem::Ext::BuildError: ERROR: Failed to build gem native extension. 

    current directory: /Users/Aiker/Desktop/blog/vendor/bundle/gems/mysql2-0.4.5/ext/mysql2 
/Users/Aiker/.rbenv/versions/2.3.1/bin/ruby -r ./siteconf20161121-68854-12pc3sf.rb extconf.rb 
checking for rb_absint_size()... yes 
checking for rb_absint_singlebit_p()... yes 
checking for ruby/thread.h... yes 
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes 
checking for rb_thread_blocking_region()... no 
checking for rb_wait_for_single_fd()... yes 
checking for rb_hash_dup()... yes 
checking for rb_intern3()... yes 
checking for rb_big_cmp()... yes 
----- 
Using mysql_config at /usr/local/bin/mysql_config 
----- 
checking for mysql.h... yes 
checking for SSL_MODE_DISABLED in mysql.h... yes 
checking for SSL_MODE_PREFERRED in mysql.h... yes 
checking for SSL_MODE_REQUIRED in mysql.h... yes 
checking for SSL_MODE_VERIFY_CA in mysql.h... yes 
checking for SSL_MODE_VERIFY_IDENTITY in mysql.h... yes 
checking for errmsg.h... yes 
checking for mysqld_error.h... yes 
----- 
Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load 
----- 
----- 
Setting libpath to /usr/local/Cellar/mysql/5.7.16/lib 
----- 
creating Makefile 

To see why this extension failed to compile, please check the mkmf.log which can be found here: 

    /Users/Aiker/Desktop/blog/vendor/bundle/extensions/x86_64-darwin-16/2.3.0-static/mysql2-0.4.5/mkmf.log 

current directory: /Users/Aiker/Desktop/blog/vendor/bundle/gems/mysql2-0.4.5/ext/mysql2 
make "DESTDIR=" clean 

current directory: /Users/Aiker/Desktop/blog/vendor/bundle/gems/mysql2-0.4.5/ext/mysql2 
make "DESTDIR=" 
compiling client.c 
compiling infile.c 
compiling mysql2_ext.c 
compiling result.c 
compiling statement.c 
linking shared-object mysql2/mysql2.bundle 
ld: library not found for -lssl 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 
make: *** [mysql2.bundle] Error 1 

make failed, exit code 2 

Gem files will remain installed in /Users/Aiker/Desktop/blog/vendor/bundle/gems/mysql2-0.4.5 for inspection. 
Results logged to /Users/Aiker/Desktop/blog/vendor/bundle/extensions/x86_64-darwin-16/2.3.0-static/mysql2-0.4.5/gem_make.out 

An error occurred while installing mysql2 (0.4.5), and Bundler cannot continue. 
Make sure that `gem install mysql2 -v '0.4.5'` succeeds before bundling.

來源

2016-11-21 00:10:12 Aiker

使用mysql db創建新的應用程序導軌時出錯

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