title: Android uber error No authentication challenges found
body: <p>I am trying to implement Uber in my Android application. I got error "No authentication challenges found" when authenticate a user.</p>
  
  <p>I have created an app in Uber and given the following scope to the app as shown in the image.</p>
  
  <p><img src="https://i.stack.imgur.com/jzuLS.png" alt="enter image description here"></p>
  
  <p>and my Redirect URL  is : <code>http://localhost/auth</code></p>
  
  <p>In my Android app I have given following scope list for authorize call </p>
  
  <pre><code>public static final String SCOPES = "profile history_lite history";
  </code></pre>
  
  <p>and  added the params list to the api.</p>
  
  <pre><code>params.add(new BasicNameValuePair("response_type", Constants.CODE));
  params.add(new BasicNameValuePair("client_id", Constants
          .getUberClientId(this)));
  params.add(new BasicNameValuePair("scope", Constants.SCOPES));
  params.add(new BasicNameValuePair("redirect_uri", Constants
          .getUberRedirectUrl(this)));
  </code></pre>
  
  <p>please help me on this to how to solve this problem?</p>