rake db:migrate 错误 mysql2 gem - 库未加载：libssl.1.0.0.dylib

Question

运行 rake db:migrate

后出现以下错误

rake aborted!
LoadError: dlopen(/Users/scott/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/mysql2-0.4.10/lib/mysql2/mysql2.bundle, 9): Library not loaded: libssl.1.0.0.dylib
  Referenced from: /Users/scott/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/mysql2-0.4.10/lib/mysql2/mysql2.bundle
  Reason: image not found - /Users/scott/.rbenv/versions/2.4.1/lib/ruby/gems/2.4.0/gems/mysql2-0.4.10/lib/mysql2/mysql2.bundle
/Users/scott/Google Drive/playground/myApp/myApp/config/application.rb:21:in `<top (required)>'
/Users/scott/Google Drive/playground/myApp/myApp/Rakefile:4:in `<top (required)>'

libssl 指的是什么？

Answer 1

所以我自己的问题的答案如下 - 在 Whosebug 上的 5 个左右的其他解决方案中，这是唯一有效的解决方案：

brew install openssl

cd /usr/local/Cellar/openssl/1.0.1f/lib

sudo cp libssl.1.0.0.dylib libcrypto.1.0.0.dylib /usr/lib/

这里有完整的解决方案 - https://mithun.co/hacks/library-not-loaded-libcrypto-1-0-0-dylib-issue-in-mac/

Answer 2

先卸载mysql2 gem:

gem uninstall mysql2

确保你安装了 openssl:

brew install openssl

它会打印出一些注释。我们对这部分感兴趣：

For compilers to find this software you may need to set:
LDFLAGS:  -L/usr/local/opt/openssl/lib
CPPFLAGS: -I/usr/local/opt/openssl/include

然后你可以像这样重新安装 mysql2 gem:

gem install mysql2 -v 0.4.10 -- --with-cppflags=-I/usr/local/opt/openssl/include --with-ldflags=-L/usr/local/opt/openssl/lib

你应该可以开始了。

Answer 3

以下修复解决了问题

   ==> cd /usr/local/Cellar/openssl/1.0.2s/lib/

==> sudo cp libssl.1.0.0.dylib libcrypto.1.0.0.dylib /usr/local/lib

Answer 4

就我而言，只需卸载并安装 mysql2 gem 就可以了

$ gem uninstall mysql2

$ bundle install 
> Fetching mysql2 0.4.10
> Installing mysql2 0.4.10 with native extensions

Answer 5

只有一个命令：

gem pristine mysql2

那我解决这个问题

Answer 6

对于 rbenv 的用户：

 brew uninstall openssl
 brew install rbenv/tap/openssl@1.0

 gem uninstall mysql2
 gem install mysql2 -v '0.4.10' -- --with-opt-dir="$(brew --prefix rbenv/tap/openssl@1.0)"

Answer 7

对我来说，mysql2 的更高版本（在我的例子中是 0.5.3）需要 openssl1.1。这样做之后，它对我有用：

$  cp /usr/local/Cellar/openssl@1.1/1.1.1j/lib/libssl.1.1.dylib /usr/local/lib
$  cp /usr/local/Cellar/openssl@1.1/1.1.1j/lib/libcrypto.1.1.dylib /usr/local/lib

rake db:migrate 错误 mysql2 gem - 库未加载：libssl.1.0.0.dylib

rake db:migrate error with mysql2 gem - Library not loaded: libssl.1.0.0.dylib

ruby

rake

rubygems

ruby-on-rails

mysql2