Tried to Install Knowledge Base, but received duplicate module name error

I tried to install knowledge base, but received duplicate module name error.

How do I check if knowledgebase is installed?

I don’t see it anywhere

Can you share your full trace?

I’m having an internal server error now, but when I can, I will

also where would I find the full trace?

check your logs in /logs folder

2016-02-05 09:44:33,281 Could not take error snapshot: ‘connection’
site: site1.local
form: {‘cmd’: u’’,
‘name’: u’knowledge_base’}

Traceback (innermost last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/”, line 36, $
snapshot = get_snapshot(exception)
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/”, line 81, $
call = inspect.formatargvalues(args, varargs, varkw, locals, formatvalue=la$
File “/usr/lib/python2.7/”, line 888, in formatargvalues
specs.append(strseq(args[i], convert, join))
File “/usr/lib/python2.7/”, line 843, in strseq
return convert(object)
File “/usr/lib/python2.7/”, line 885, in convert
return formatarg(name) + formatvalue(locals[name])
KeyError: ‘connection’

Here is the tracelog of the error.