dyld: Library not loaded: /usr/local/lib/libpng

环境：mac+php 5.4.26+nginx

php-fpm启动的时候提示

dyld: Library not loaded: /usr/local/lib/libpng15.15.dylib
Referenced from: /usr/local/bin/php
Reason: image not found

brew info libpng
//发现是因为libpng版本的问题，切换一下就可以了
brew switch libpng 1.5.18

dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.60.dylib

使用 brew 安装 yarn 之后 ，node 环境报错

dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.60.dylib
Referenced from: /usr/local/opt/node@8/bin/node
Reason: image not found

查找很多资料，还是没有完全解决，经过的自己的实践，解决了我的问题，希望对你有帮助。

解决方法

brew list  # 查看安装的软件
brew uninstall --ignore-dependencies node icu4c  # 卸载软件
brew uninstall nvm  #卸载nvm
brew uninstall node[@8](https://my.oschina.net/u/147515)  #卸载node[@8](https://my.oschina.net/u/147515)
brew uninstall yarn   #卸载 yarn

安装软件
brew install nvm
==> Caveats
Please note that upstream has asked us to make explicit managing
nvm via Homebrew is unsupported by them and you should check any
problems against the standard nvm install method prior to reporting.

You should create NVM''s working directory if it doesn''t exist:

  mkdir ~/.nvm

Add the following to ~/.zshrc or your desired shell
configuration file:

  export NVM_DIR="$HOME/.nvm"
  [ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"  # This loads nvm
  [ -s "/usr/local/opt/nvm/etc/bash_completion" ] && . "/usr/local/opt/nvm/etc/bash_completion"  # This loads nvm bash_completion

You can set $NVM_DIR to any location, but leaving it unchanged from
/usr/local/opt/nvm will destroy any nvm-installed Node installations
upon upgrade/reinstall.

Type `nvm help` for further information.

Bash completion has been installed to:
  /usr/local/etc/bash_completion.d
==> Summary
  /usr/local/Cellar/nvm/0.34.0: 7 files, 141.7KB, built in 8 seconds

• 根据提示，创建文件，配置参数

     mkdir ~/.nvm
  	Add the following to ~/.zshrc or your desired shell
    configuration file:
  
      export NVM_DIR="$HOME/.nvm"
      [ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"  # This loads nvm
      [ -s "/usr/local/opt/nvm/etc/bash_completion" ] && . "/usr/local/opt/nvm/etc/bash_completion"  # This loads nvm bash_completion
  

• 再使用 nvm 安装 node

     ~ nvm list
    			N/A
    iojs -> N/A (default)
    node -> stable (-> N/A) (default)
    unstable -> N/A (default)
    nvm_list_aliases:36: no matches found: /Users/caonn/.nvm/alias/lts/*
    ➜  ~ nvm install v8.11.2
    Downloading and installing node v8.11.2...
    Downloading https://nodejs.org/dist/v8.11.2/node-v8.11.2-darwin-x64.tar.xz...
    ######################################################################## 100.0%
    Computing checksum with shasum -a 256
    Checksums matched!
    Now using node v8.11.2 (npm v5.6.0)
    Creating default alias: default -> v8.11.2
    ➜  ~ node -v
    v8.11.2
    ➜  ~ npm -v
    5.6.0
    ➜  ~
  

测试后，可以正常使用。

##【总结】

1.nvm，nodejs，brew 软件使用不熟悉，liunx原理不熟。
2.解决思路，把所有相关软件卸载后，重新安装。
3.后面的node版本都是用nvm 管理。

dyld: Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib

 dyld: Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib

我们今天的关于dyld：库未加载：/usr/local/opt/openssl/lib/libssl.1.0.0.dylib和无法加载库dbdata.dll的分享就到这里，谢谢您的阅读，如果想了解更多关于Dyld 错误消息：库未加载：/usr/X11/lib/libfreetype.6.dylib、dyld: Library not loaded: /usr/local/lib/libpng、dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.60.dylib、dyld: Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib的相关信息，可以在本站进行搜索。