jinja2.exceptions.TemplateNotFound

Here is my config file. I removed all the comments, so everything not on here is the default value. My starting command is just jupyterhub

c.JupyterHub.bind_url = 'http://0.0.0.0:8200'
c.JupyterHub.data_files_path = '/jupyterhub-data'
c.JupyterHub.db_url = 'sqlite:////jupyterhub-db/jupyterhub.sqlite'
c.JupyterHub.hub_port = 8281
c.ConfigurableHTTPProxy.api_url = 'http://0.0.0.0:8201'
c.Spawner.default_url = '/lab'

import pwd, subprocess

def pre_spawn_hook(spawner):
    username = spawner.user.name
    try:
        pwd.getpwnam(username)
    except KeyError:
        subprocess.check_call(['useradd', '-ms', '/bin/bash', username])

c.Spawner.pre_spawn_hook = pre_spawn_hook

c.Authenticator.admin_users = set('root')