How to rectify this error? : <pre><code>    python serve.py
/usr/local/lib/python3.4/dist-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.sqlalchemy is deprecated, use flask_sqlalchemy instead.
  .format(x=modname), ExtDeprecationWarning
Traceback (most recent call last):
  File "serve.py", line 1, in &lt;module&gt;
    from CTFd import create_app
  File "/home/rajat/Downloads/CTFd/CTFd/__init__.py", line 7, in &lt;module&gt;
    from utils import get_config, set_config
     ImportError: cannot import name 'get_config'
</code></pre>

<p>Don't know what is causing this error</p>

<p>Tried pip install utils</p>

<p>Thanks in advance </p>
