Error !

TemplateLookupException: Cant locate template for uri u'menu'

<%namespace file="/partials" name="partials" import="*"/> <%namespace name="menu" file="menu" inheritable="True" /> <%inherit file="site" /> <%def name="main_content()"> <% import json i18n = object.LimeAPI.i18n
/venv/lib/python2.7/site-packages/mako/runtime.py, line 795:
raise exceptions.TemplateLookupException(str(compat.exception_as()))
/venv/lib/python2.7/site-packages/mako/runtime.py, line 560:
calling_uri)
memory:0x7f721a74b550, line 2:
<%namespace name="menu" file="menu" inheritable="True" />
memory:0x7f721a74b550, line 1:
<%namespace file="/partials" name="partials" import="*"/>
/venv/lib/python2.7/site-packages/mako/runtime.py, line 805:
ret = template.module._mako_inherit(template, context)
/venv/lib/python2.7/site-packages/mako/runtime.py, line 863:
(inherit, lclcontext) = _populate_self_namespace(context, tmpl)
/venv/lib/python2.7/site-packages/mako/runtime.py, line 829:
**_kwargs_for_callable(callable_, data))
/venv/lib/python2.7/site-packages/mako/template.py, line 445:
return runtime._render(self, self.callable_, args, data)
/home/lime/docker-inst/Products/LimeTemplate/LimeTemplate.py, line 722:
html = mytemplate.render(object=object, site=site, request=self.REQUEST, extra=extra.get('kwargs', None), **extra)