When I visit a page of a CKAN site, I get an error: "Server Error" with status 500:
我该如何找出问题所在？
我如何获得帮助？
这个错误可能意味着很多事情。 （从技术上讲，服务器处理您的请求期间出现了异常。）
您的服务器日志会告诉您发生了什么。大多数情况下，您可以在此文件中看到它：
/var/log/apache2/ckan_default.error.log
一个错误的详细信息如下所示：
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] Traceback (most recent call last):
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] File "/var/ckan/wsgi_app.py", line 8, in
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] fileConfig(config_filepath)
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] File "/home/co/ckan/lib/python2.7/site-packages/paste/script/util/logging_config.py", line 85, in fileConfig
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] handlers = _install_handlers(cp, formatters)
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] File "/home/co/ckan/lib/python2.7/site-packages/paste/script/util/logging_config.py", line 158, in _install_handlers
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] h = apply(klass, args)
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] File "/usr/lib/python2.7/logging/handlers.py", line 118, in __init__
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] BaseRotatingHandler.__init__(self, filename, mode, encoding, delay)
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] File "/usr/lib/python2.7/logging/handlers.py", line 65, in __init__
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] logging.FileHandler.__init__(self, filename, mode, encoding, delay)
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] File "/usr/lib/python2.7/logging/__init__.py", line 897, in __init__
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] StreamHandler.__init__(self, self._open())
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] File "/usr/lib/python2.7/logging/__init__.py", line 916, in _open
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] stream = open(self.baseFilename, self.mode)
[Sat Sep 28 10:50:14 2013] [error] [client 81.102.118.195] IOError: [Errno 13] Permission denied: '/var/log/ckan/ckan.log'
即它以“Traceback”开头并以一行结束<error-type>: <message>.
寻求帮助时，请提供所有这些行 - 不要只是说您有“500 服务器错误”。
您可以在 StackOverflow 上使用标签 #ckan 询问。或者加入ckan-dev电子邮件列表并在那里询问。