Ohmyzsh: 오류: 명령을 찾을 수 없음: env

안녕하세요, 이 오류가 발생하는 이유를 알고 싶습니다.

Last login: Sun Sep 13 20:15:26 on console
/Users/leongaban/.oh-my-zsh/oh-my-zsh.sh:3: command not found: env
/Users/leongaban/.oh-my-zsh/lib/theme-and-appearance.zsh:9: command not found: uname
/Users/leongaban/.oh-my-zsh/lib/theme-and-appearance.zsh:13: command not found: uname
➜  ~  zsh --version
zsh 5.0.2 (x86_64-apple-darwin13.0)
➜  ~

내 현재 .zshrc

export ZSH=/Users/leongaban/.oh-my-zsh
export TERM="xterm-256color"
export PATH="/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/mysql/bin:/Users/leongaban/bin/subl"
export PATH="/bin:/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:$PATH"
export PATH="/usr/local/mysql"
export EDITOR='subl -w'

source $HOME/.bash_profile
source $ZSH/oh-my-zsh.sh

if [ -f ~/.bashrc ]; then
    source ~/.bashrc
fi

# 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.
ZSH_THEME="robbyrussell"

# Uncomment the following line to disable bi-weekly auto-update checks.
# DISABLE_AUTO_UPDATE="true"

# Uncomment the following line to change how often to auto-update (in days).
# export UPDATE_ZSH_DAYS=13

# Uncomment the following line to disable auto-setting terminal title.
# DISABLE_AUTO_TITLE="true"

내 username/Projects/env 폴더에 가상 환경을 생성했지만 거기에 대한 경로가 설정되어 있지 않습니다. 이 별칭만 있으면 됩니다.

# Virtual Environment
alias activate="source env/bin/activate"