run error on centos 7.1

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my ENVs as below. Please help me. Thanks!

python-2.7.5-18.el7_1.1.x86_64
web.py 0.37
Mako 1.0.1
psutil 3.1.1
python-dmidecode-3.10.13-11.el7.x86_64

The error trace stack as below

x.x.x.x:1941 - - [24/Aug/2015 15:39:36] "HTTP/1.1 GET /" - 500 Internal Server Error
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/web.py-0.37-py2.7.egg/web/application.py", line 239, in process
return self.handle()
File "/usr/lib/python2.7/site-packages/web.py-0.37-py2.7.egg/web/application.py", line 230, in handle
return self._delegate(fn, self.fvars, args)
File "/usr/lib/python2.7/site-packages/web.py-0.37-py2.7.egg/web/application.py", line 401, in _delegate
raise web.notfound()
File "/data/SaltAdmin/view/main.py", line 63, in notfound
return web.notfound(render.login())
File "/usr/lib/python2.7/site-packages/web.py-0.37-py2.7.egg/web/contrib/template.py", line 113, in getattr
t = self._lookup.get_template(path)
File "/usr/lib/python2.7/site-packages/Mako-1.0.1-py2.7.egg/mako/lookup.py", line 248, in get_template
"Cant locate template for uri %r" % uri)
TopLevelLookupException: Cant locate template for uri 'login.html'