我有一个django项目，我用ubuntu 14运行（作为虚拟机中的客户操作系统）。现在，当我启动django服务器时，我收到一条关于lessc的错误消息，我并不完全理解。你能帮帮我吗？
Environment:
Request Method: GET
Request URL: http://xxxxx.xxx.se:8000/xxx/
Django Version: 1.6.2
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.staticfiles',
'pagination',
'django_cas',
'south',
'haystack',
'djcelery',
'rosetta',
'compressor',
'django_nose',
'social.content',
'social.subscription',
'social.tag',
'social.comment',
'social.group',
'social.post',
'social.overview',
'social.wiki',
'social.util',
'social.upload',
'social.users',
'social.toolbar',
'social.search',
'social.servicelinks',
'social.link',
'social.terms',
'social.tracking',
'social.event',
'social.notifications',
'social.activity',
'social.oembed',
'social.survey',
'social.services')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.locale.LocaleMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'social.kthcas.middleware.ContextLoggingMiddleware',
'django_cas.middleware.CASMiddleware',
'social.kthcas.middleware.CheckSSOMiddleware',
'django.middleware.doc.XViewMiddleware',
'pagination.middleware.PaginationMiddleware',
'social.util.middleware.RequestScope',
'social.util.middleware.CheckLanguageCookie',
'social.util.minidetector.Middleware',
'social.util.middleware.SuperuserMiddleware')
Template error:
In template /etc/social/social/social/templates/global.html, error at line 24
/bin/sh: 1: /usr/local/bin/lessc: not found
14 :
15 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}js/lib/tiny_mce/skins/lightgray/skin.min.css?v=4"/>
16 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}js/lib/jquery-ui/css/smoothness/jquery-ui.min.css"/>
17 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}js/lib/tiny_mce/plugins/tinywebtex/css/dialog.css?v=4"/>
18 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}css/global.css"/>
19 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}css/activitystream.css"/>
20 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}css/sidebar.css"/>
21 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}css/print.css"/>
22 : <link rel="stylesheet" type="text/css" media="all" href="{{ STATIC_URL }}css/webtex.css?v=4"/>
23 : {% endcompress %}
24 : {% compress css %}
25 : <link rel="stylesheet" type="text/less" media="all" href="{{ STATIC_URL }}css/social.less"/>
26 : {% endcompress %}
27 : {% compress css %}
28 : <link rel="stylesheet" type="text/less" media="all" href="{{ STATIC_URL }}css/personal_menu.less"/>
29 : {% endcompress %}
30 : {% if SITE_CSS %}
31 : <link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}{{ SITE_CSS }}"/>
32 : {% endif %}
33 : {% compress js %}
34 : <script type="text/javascript" src="{{ STATIC_URL }}js/lib/jquery-1.11.1.js"></script><!-- many depends on-->
Traceback:
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
114. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/etc/social/social/social/overview/views.py" in overview
23. 'special_login_destination': '%s/home' % settings.DEFAULT_URL_PREFIX,
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/shortcuts/__init__.py" in render
53. return HttpResponse(loader.render_to_string(*args, **kwargs),
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/loader.py" in render_to_string
169. return t.render(context_instance)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in render
140. return self._render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in _render
134. return self.nodelist.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in render
840. bit = self.render_node(node, context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/debug.py" in render_node
78. return node.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/loader_tags.py" in render
123. return compiled_parent._render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in _render
134. return self.nodelist.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in render
840. bit = self.render_node(node, context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/debug.py" in render_node
78. return node.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/loader_tags.py" in render
123. return compiled_parent._render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in _render
134. return self.nodelist.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in render
840. bit = self.render_node(node, context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/debug.py" in render_node
78. return node.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/loader_tags.py" in render
123. return compiled_parent._render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in _render
134. return self.nodelist.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/base.py" in render
840. bit = self.render_node(node, context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/django/template/debug.py" in render_node
78. return node.render(context)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/templatetags/compress.py" in render
149. return self.render_compressed(context, self.kind, self.mode, forced=forced)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/templatetags/compress.py" in render_compressed
108. rendered_output = self.render_output(compressor, mode, forced=forced)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/templatetags/compress.py" in render_output
121. return compressor.output(mode, forced=forced)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/css.py" in output
51. ret.append(subnode.output(*args, **kwargs))
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/css.py" in output
53. return super(CssCompressor, self).output(*args, **kwargs)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/base.py" in output
285. output = '\n'.join(self.filter_input(forced))
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/base.py" in filter_input
224. for hunk in self.hunks(forced):
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/base.py" in hunks
200. precompiled, value = self.precompile(value, **options)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/base.py" in precompile
254. return True, filter.input(**kwargs)
File "/home/developer/.virtualenvs/kthsocial/local/lib/python2.7/site-packages/compressor/filters/base.py" in input
173. raise FilterError(err)
Exception Type: FilterError at /social/
Exception Value: /bin/sh: 1: /usr/local/bin/lessc: not found
答案 0 :(得分：1)
它正在寻找/usr/local/bin/lessc中较少的编译器。你检查过它确实存在吗？
答案 1 :(得分：1)
尝试
sudo apt-get install npm
sudo npm install -g less