Error inflating class about expandablelayout HOT 11 CLOSED

 package br.com.medflex.adapters;

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.OvershootInterpolator;
import android.widget.ImageButton;
import android.widget.TextView;

import net.cachapa.expandablelayout.ExpandableLayout;

import java.util.List;

import br.com.medflex.R;
import br.com.medflex.utils.MinhaConsulta;

public class MinhaConsultaAdapter extends RecyclerView.Adapter<MinhaConsultaAdapter.ViewHolder> {
    private int UNSELECTED = -1;

    private RecyclerView recyclerView;
    private int selectedItem = UNSELECTED;
    private List<MinhaConsulta> consultas;

    public MinhaConsultaAdapter(RecyclerView recyclerView, List<MinhaConsulta> consultas) {
        this.recyclerView = recyclerView;
        this.consultas = consultas;
    }

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

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        holder.bind(position);
    }

    @Override
    public int getItemCount() {
        return consultas.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        private ExpandableLayout expandableLayout;
        private TextView especialidade, data, hora, local;
        private ImageButton imgExpand;
        private int position;

        public ViewHolder(View itemView) {
            super(itemView);

            expandableLayout = (ExpandableLayout) itemView.findViewById(R.id.expandable_recycler);
            expandableLayout.setInterpolator(new OvershootInterpolator());

            especialidade = (TextView) itemView.findViewById(R.id.txt_consulta_especialidade);
            data = (TextView) itemView.findViewById(R.id.txt_consulta_data);
            especialidade.setOnClickListener(this);
        }

        public void bind(int position) {
            this.position = position;

            especialidade.setSelected(false);
            expandableLayout.collapse(false);

            especialidade.setText(consultas.get(position).getEspecialidade());
            data.setText(consultas.get(position).getData());
        }

        @Override
        public void onClick(View v) {
            ViewHolder viewHolder = (ViewHolder) recyclerView.findViewHolderForAdapterPosition(selectedItem);

            if (viewHolder != null) {
                viewHolder.imgExpand.setSelected(false);
                viewHolder.expandableLayout.collapse();
            }

            if (position == selectedItem) {
                selectedItem = UNSELECTED;
            } else {
                imgExpand.setSelected(true);
                expandableLayout.expand();
                selectedItem = position;
            }

        }
    }
}
```

And that's my layout file:

```
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <TextView
        android:id="@+id/txt_consulta_especialidade"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:elevation="6dp"
        android:foreground="?selectableItemBackground"
        android:padding="@dimen/activity_horizontal_margin"
        android:text="Especialidade 01" />

    <net.cachapa.expandablelayout.ExpandableLayout
        android:id="@+id/expandable_recycler"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/img_expandable"
        app:el_duration="300"
        app:el_expanded="false">

        <TextView
            android:id="@+id/txt_consulta_data"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Data" />
    </net.cachapa.expandablelayout.ExpandableLayout>

</LinearLayout>
```