ln: /usr/lib/libmysqlclient.18.dylib: File exists

问题:

rake aborted! dlopen(/Users/ava/.rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle, 9): Library not loaded: /usr/local/lib/libmysqlclient.18.dylib   Referenced from: /Users/ava/.rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle   Reason: image not found - /Users/ava/.rvm/gems/ruby-2.0.0-p247/gems/mysql2-0.3.11/lib/mysql2/mysql2.bundle` 

Ran the following to resolve:

$ sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib \              /usr/lib/libmysqlclient.18.dylib ln: /usr/lib/libmysqlclient.18.dylib: File exists 

My setup:

• OSX 10.8.4
• MySQL 5.1.71

• libmysqlclient.16.dylib

  $ locate libmysqlclient.16.dylib /usr/lib/libmysqlclient.16.dylib /usr/local/Cellar/mysql51/5.1.71/lib/mysql/libmysqlclient.16.dylib 

• libmysqlclient.18.dylib

  $ locate libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib 

In .bash_profile, I have

export PATH="/usr/local/bin:$HOME/.rvm/bin:$HOME/bin:$PATH" export DYLD_LIBRARY_PATH=/usr/local/bin/mysql 

How to get this rake running? Am I supposed to have libmysqlclient.18.dylib under /usr/local/Cellar/mysql51/5.1.71/lib/mysql too? If yes, how do I create it?

回答1:

Sorry, if I am mistaken; there is no Mac to check in details.

The error message clearly states, that the library mysql wants is:

/usr/local/lib/libmysqlclient.18.dylib 

while the library you have is:

/usr/lib/libmysqlclient.18.dylib 

That definitely means, that your mysql installation is somehow broken, but for the quick patch I would recommend soft linking:

$ sudo ln -s /usr/lib/libmysqlclient.18.dylib /usr/local/lib/libmysqlclient.18.dylib 

You have likely misplaced arguments within your first solution try.

回答2:

Instruct Mac OS X to find it as follows, if you are using Bash:

In your ~/.bash_profile:

export DYLD_LIBRARY_PATH=<location of mysqlclient.18.dylib>:$DYLD_LIBRARY_PATH 

Restart terminal.

For example, I have the following:

$ ls -ld /usr/local/m* lrwxr-xr-x   1 root  admin   27 May  5 14:28 /usr/local/mysql -> mysql-5.6.13-osx10.7-x86_64 drwxr-xr-x   3 root  wheel  102 May  5 13:13 /usr/local/mysql-5.5.29-osx10.6-x86 drwxr-xr-x  17 root  wheel  578 May  5 13:13 /usr/local/mysql-5.6.13-osx10.7-x86_64  $ head ~/.bash_profile export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:$DYLD_LIBRARY_PATH 

文章来源: ln: /usr/lib/libmysqlclient.18.dylib: File exists