当我尝试创建虚拟django环境时。使用“virtualenv --no-site-packages django”，我收到的错误如下，
New python executable in django/bin/python
Installing setuptools, pip...
Complete output from command /home/krishna/KRISHN...on/django/bin/python -c "import sys, pip; pip...ll\"] + sys.argv[1:])" setuptools pip:
Traceback** (most recent call last):
File "<string>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/virtualenv-1.11-py2.7.egg/virtualenv_support/pip-1.5-py2.py3-none-any.whl/pip/__init__.py", line 9, in <module>
File "/usr/local/lib/python2.7/dist-packages/virtualenv-1.11-py2.7.egg/virtualenv_support/pip-1.5-py2.py3-none-any.whl/pip/log.py", line 8, in <module>
ImportError: No module named pkg_resources
----------------------------------------
...Installing setuptools, pip...done.
Traceback (most recent call last):
File "/usr/local/bin/virtualenv", line 9, in <module>
load_entry_point('virtualenv==1.11', 'console_scripts', 'virtualenv')()
File "/usr/local/lib/python2.7/dist-packages/virtualenv-1.11-py2.7.egg/virtualenv.py", line 820, in main
symlink=options.symlink)
File "/usr/local/lib/python2.7/dist-packages/virtualenv-1.11-py2.7.egg/virtualenv.py", line 988, in create_environment
install_wheel(to_install, py_executable, search_dirs)
File "/usr/local/lib/python2.7/dist-packages/virtualenv-1.11-py2.7.egg/virtualenv.py", line 956, in install_wheel
'PIP_NO_INDEX': '1'
File "/usr/local/lib/python2.7/dist-packages/virtualenv-1.11-py2.7.egg/virtualenv.py", line 898, in call_subprocess
% (cmd_desc, proc.returncode))
OSError: Command /home/krishna/KRISHN...on/django/bin/python -c "import sys, pip; pip...ll\"] + sys.argv[1:])" setuptools pip failed with error code 1***