title: onBindViewHolder must be declared abstract
body: <p>I am getting the error : class "FlickrRecyclerViewAdapter" must either be declared abstract or implement method abstract method onBindViewHolder(VH, int) in 'Adapter'</p>
  
  <p>While this error should be self explanitory, I have implemended onBindViewHolder and the error is still present.</p>
  
  <p>Relvant Code - </p>
  
  <pre><code>public class FlickrRecyclerViewAdapter extends RecyclerView.Adapter {
      private List&lt;Photo&gt; mPhotosList;
      private Context mContext;
  
      public FlickrRecyclerViewAdapter(Context context, List&lt;Photo&gt; photosList) {
          mContext = context;
          this.mPhotosList = photosList;
      }
  
      @Override
      public void onBindViewHolder(FlickrImageViewHolder flickrImageViewHolder, int i) {
  
              Photo photoItem = mPhotosList.get(i);
              Picasso.with(mContext).load(photoItem.getmImage())
                      .error(R.drawable.placeholder)
                      .placeholder(R.drawable.placeholder)
                      .into(flickrImageViewHolder.thumbnail);
  
          }
      }
  </code></pre>
  
  <p>Thanks</p>