title: Error Specifying a namespace in include() without providing an app_name
body: <p>When I tried my project runserver, this error</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
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  <pre class="snippet-code-html lang-html prettyprint-override"><code>File "&lt;frozen importlib._bootstrap&gt;", line 219, in _call_with_frames_removed
    File "C:\Users\apple\Desktop\web3start\tests\urls.py", line 8, in &lt;module&gt;
      url(r'^', include('web3auth.urls', namespace='web3auth')),
    File "C:\Users\apple\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\urls\conf.py", line 39, in include
      'Specifying a namespace in include() without providing an app_name '
  django.core.exceptions.ImproperlyConfigured: Specifying a namespace in include() without providing an app_name is not supported. Set the app_name attribute in
  the included module, or pass a 2-tuple containing the list of patterns and app_name instead.</code></pre>
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  <p>came out.</p>
  
  <p><strong>conf.py</strong></p>
  
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  <pre class="snippet-code-html lang-html prettyprint-override"><code> if isinstance(urlconf_module, str):
          urlconf_module = import_module(urlconf_module)
      patterns = getattr(urlconf_module, 'urlpatterns', urlconf_module)
      app_name = getattr(urlconf_module, 'app_name', app_name)
      if namespace and not app_name:
          raise ImproperlyConfigured(
              'Specifying a namespace in include() without providing an app_name '
              'is not supported. Set the app_name attribute in the included '
              'module, or pass a 2-tuple containing the list of patterns and '
              'app_name instead.',</code></pre>
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  <p><strong>urls.py</strong></p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code># -*- coding: utf-8 -*-
  from __future__ import unicode_literals, absolute_import
  
  from django.conf.urls import url, include
  
  
  urlpatterns = [
      url(r'^', include('web3auth.urls', namespace='web3auth')),
  ]</code></pre>
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  </p>
  
  <p>What should I do?? I need a specific code directly to write on!</p>