Question

启动Rails应用程序时，我得到：

1: from/home/tpollak/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/mysql2-0.5.2/lib/mysql2.rb:33:in `<top (required)>'
/home/tpollak/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/mysql2-0.5.2/lib/mysql2.rb:33:in `require': libmysqlclient.so.20: cannot open shared object file: No such file or directory - 
/home/tpollak/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/mysql2-0.5.2/lib/mysql2/mysql2.so (LoadError)

但是我有：

$ ll /home/tpollak/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/mysql2-0.5.2/lib/mysql2/
...
lrwxrwxrwx 1 root    root        43 jan  5 16:54 libmysqlclient.so.20 -> /usr/lib/x86_64-linux-gnu/libmysqlclient.so

和一系列ln -s指向：

-rwxr-xr-x 1 root root 7080072 okt 22 15:50 /usr/lib/x86_64-linux-gnu/libmysqlclient.so.21.1.18*

我是否必须降级我的libmysqlclient.so或定义宝石的较新版本？

Answer 1

您是否尝试删除gem uninstall mysql2，然后重新安装gem install mysql2（或只是运行捆绑软件）。

如果这不起作用，则可以尝试以下操作：https://unix.stackexchange.com/questions/471788/error-while-loading-shared-libraries-libmysqlclient-so-20-cannot-open-shared-o

Ruby on Rails需要libmysqlclient.so.20，但我有21 ...是否需要降级？

1 个答案: