mkvirtualenvコマンドでエラー

python ubuntu
新しくPC買ったので
http://www.doughellmann.com/docs/virtualenvwrapper/ja/
を見ながら設定してた
適当なプロジェクトつくろうとしたら

w1mvy% mkvirtualenv fuga [~]
New python executable in fuga/bin/python
Installing setuptools............done.
Complete output from command /home/w1mvy/.virtualenvs/fuga/bin/python /home/w1mvy/.virtualenvs/fuga/...stall /usr/local/lib/python2.6/dist-...ar.gz:
/home/w1mvy/.virtualenvs/fuga/bin/python: can't open file '/home/w1mvy/.virtualenvs/fuga/bin/easy_install': [Errno 2] No such file or directory

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • -

Traceback (most recent call last):
File "/usr/local/bin/virtualenv", line 9, in
load_entry_point('virtualenv==1.5.1', 'console_scripts', 'virtualenv')()
File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 558, in main
prompt=options.prompt)
File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 656, in create_environment
install_pip(py_executable)
File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 415, in install_pip
filter_stdout=_filter_setup)
File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 624, in call_subprocess
% (cmd_desc, proc.returncode))
OSError: Command /home/w1mvy/.virtualenvs/fuga/bin/python /home/w1mvy/.virtualenvs/fuga/...stall /usr/local/lib/python2.6/dist-...ar.gz failed with error code 2

というエラーがでた。

easy_installがうまくコピーできてないのかしら…

いまのところ

mkvirtualenv --python=/usr/bin/python2.6 --no-site-package fuge

で自分のsite-packageの環境を受け継がないようにして回避してる