问哦-my-zsh插件无法工作

EN

    # Path to your oh-my-zsh configuration.
    export ZSH=$HOME/.oh-my-zsh

    # Set name of the theme to load.
    # Look in ~/.oh-my-zsh/themes/
    # Optionally, if you set this to "random", it'll load a random theme each
    # time that oh-my-zsh is loaded.
    export ZSH_THEME="steeef"

    # Set to this to use case-sensitive completion
    # export CASE_SENSITIVE="true"

    # Comment this out to disable weekly auto-update checks
    # export DISABLE_AUTO_UPDATE="true"

    # Uncomment following line if you want to disable colors in ls
    # export DISABLE_LS_COLORS="true"

    # Uncomment following line if you want to disable autosetting terminal title.
    # export DISABLE_AUTO_TITLE="true"

    # Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)
    # Example format: plugins=(rails git textmate ruby lighthouse)
    plugins=(git osx github macports textmate svn)

    source $ZSH/oh-my-zsh.sh

    # Customize to your needs...
    export     PATH=/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin/:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin/:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin:/usr/local/cuda/bin:/usr/local/cuda/bin:/opt/local/bin:/opt/local/sbin