1. 检查布局文件中是否有RecyclerView并确认其是否已正确配置。

例子：

2. 检查RecyclerView是否已在适配器中进行了设置。例如：

mRecyclerView = (RecyclerView) rootView.findViewById(R.id.recycler_view);
mLayoutManager = new LinearLayoutManager(getActivity());
mRecyclerView.setLayoutManager(mLayoutManager);
mCustomAdapter = new CustomAdapter(getActivity(), mDataSet);
mRecyclerView.setAdapter(mCustomAdapter);

3. 确保适配器已正确实现必要的方法。例如：

public class CustomAdapter extends RecyclerView.Adapter {
    //This method will inflate the custom_layout and returning the view holder
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_layout, parent, false);
        return new ViewHolder(view);
    }

    //Binding the data into the holder
    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        holder.textView.setText(mDataSet.get(position));
    }

    //Getting the count
    @Override
    public int getItemCount() {
        return mDataSet.size();
    }

    //Creating a view holder class for holding the views
    public class ViewHolder extends RecyclerView.ViewHolder {
        public TextView textView;

        public ViewHolder(View itemView) {
            super(itemView);
            textView = (TextView) itemView.findViewById(R.id.text_view);
        }
    }
}

4. 检查是否已正确引入支持库。在 build.gradle 文件中添加以下代码：

dependencies {
    compile 'com.android.support:recyclerview-v7:26.1.0'
}

此外，还需确认 compileSdkVersion 和 targetSdkVersion 是否已设置为 26+。