RecyclerAdapter can not be converted to Adapter<ViewHolder> error

[buckydroid]

I'm trying to use the AdmobAdapter library to show natives ads inside my recyclerview. But it's giving me some errors. So here is my adapter class,

public class PostFeedAdapter extends RecyclerView.Adapter<PostFeedAdapter.ViewHolder>{

    Context c;

    public PostFeedAdapter(Context c) {
        this.c = c;
    }

    public class ViewHolder extends RecyclerView.ViewHolder {

        TextView caption;

        public ViewHolder(View itemView) {
            super(itemView);
            caption = (TextView)itemView.findViewById(R.id.caption);

        }
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from (parent.getContext ()).inflate (R.layout.post_card, parent, false);
        return new ViewHolder(v);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {

    }

    @Override
    public int getItemCount() {
        return 10;
    }

}

And in my Fragment, I'm using the AdmobAdapter

adapterWrapper = new AdmobExpressRecyclerAdapterWrapper(getActivity(), Arrays.asList(presets), testDevicesIds);
    list.setItemAnimator(new DefaultItemAnimator());
    PostFeedAdapter adapter = new PostFeedAdapter(getActivity());
    adapterWrapper.setAdapter(adapter);
    adapterWrapper.setNoOfDataBetweenAds(10);
    adapterWrapper.setFirstAdIndex(2);
    list.setAdapter(adapterWrapper);

But it's giving my errors,

Error:(94, 35) error: incompatible types: PostFeedAdapter cannot be converted to Adapter<ViewHolder>

[kot331107]

@buckydroid just try the following

// noinspection unchecked
adapterWrapper.setAdapter((RecyclerView.Adapter)adapter);

[MohaidYouness]

Thank you so much i faced same problem

[Thomas-Vos]

Why doesn't this library use generics?