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我在我的Django项目上使用Haystack，并且所有的工作都很好地使用了django服务器。当我要在Apache上运行时，我收到错误500;更精确地从日志：Django mod_wsgi和haystack = error 500
mod_wsgi (pid=4536): Exception occurred processing WSGI script
'/opt/local/apache2/htdocs/meishi/meishi/wsgi.py'.
Traceback (most recent call last):
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/core/handlers/wsgi.py", line 241, in __call__
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] response = self.get_response(request)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/core/handlers/base.py", line 179, in get_response
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/core/handlers/base.py", line 221, in handle_uncaught_exception
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return debug.technical_500_response(request, *exc_info)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/views/debug.py", line 66, in technical_500_response
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] html = reporter.get_traceback_html()
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/views/debug.py", line 276, in get_traceback_html
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return t.render(c)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/template/base.py", line 140, in render
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return self._render(context)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/template/base.py", line 134, in _render
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return self.nodelist.render(context)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/template/base.py", line 823, in render
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] bit = self.render_node(node, context)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/template/debug.py", line 74, in render_node
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return node.render(context)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/template/debug.py", line 84, in render
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] output = self.filter_expression.resolve(context)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/template/base.py", line 599, in resolve
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] new_obj = func(obj, *arg_vals)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/template/defaultfilters.py", line 718, in date
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return format(value, arg)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/dateformat.py", line 310, in format
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return df.format(format_string)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/dateformat.py", line 33, in format
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] pieces.append(force_unicode(getattr(self, piece)()))
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/dateformat.py", line 214, in r
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return self.format('D, j M Y H:i:s O')
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/dateformat.py", line 33, in format
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] pieces.append(force_unicode(getattr(self, piece)()))
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/encoding.py", line 71, in force_unicode
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] s = unicode(s)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/functional.py", line 121, in __unicode_cast
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return func(*self.__args, **self.__kw)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/translation/__init__.py", line 86, in ugettext
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return _trans.ugettext(message)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/translation/trans_real.py", line 278, in ugettext
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] return do_translate(message, 'ugettext')
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/translation/trans_real.py", line 268, in do_translate
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] _default = translation(settings.LANGUAGE_CODE)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/translation/trans_real.py", line 183, in translation
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] default_translation = _fetch(settings.LANGUAGE_CODE)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/translation/trans_real.py", line 160, in _fetch
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] app = import_module(appname)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File "/Applications/MAMP/htdocs/Django-1.4/django/utils/importlib.py", line 35, in import_module
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] __import__(name)
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] ImportError: No module named haystack
[Wed Apr 25 13:41:52 2012] [error] [client 127.0.0.1] File does not exist: /opt/local/apache2/htdocs/favicon.ico
在我的项目中使用草垛之前，我没有任何问题，在所有的mod_wsgi，一切运作良好。 可能是什么问题？
从错误日志中提供实际的回溯和异常消息，而不仅仅是之前的一行消息。 – 2012-04-25 21:08:55
添加完整的错误日志！ – 2012-04-25 21:11:50