RecyclerView Height issue

Hi I am using RecyclerView with FlexboxLayoutManager for layoutManager.setFlexDirection(FlexDirection.ROW); RecyclerView height is resctrited to show only 3 rows . this is my layout `<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/white" android:paddingTop="@dimen/_25dp">

<TextView
    android:id="@+id/reviews_label"
    style="@style/body1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginLeft="@dimen/_10dp"
    android:text="Reviews"
    android:textAllCaps="true"
    android:textColor="@color/dark_gray_color" />


<TextView
    android:id="@+id/rating_count"
    style="@style/caption"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/reviews_label"
    android:layout_marginLeft="@dimen/_10dp"
    android:layout_marginTop="@dimen/_20dp"
    android:layout_toRightOf="@id/rating_layout"
    android:text="Based on 150 ratings"
    android:textColor="@color/dark_gray_color" />

<TextView
    style="@style/small2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/rating_count"
    android:layout_marginLeft="@dimen/_10dp"
    android:layout_marginTop="@dimen/_1dp"
    android:layout_toRightOf="@id/rating_layout"
    android:text="Weighted average based on user credibility on purplle" />

<TextView
    android:id="@+id/pros_label"
    style="@style/caption"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/rating_layout"
    android:layout_marginBottom="@dimen/_10dp"
    android:layout_marginLeft="@dimen/_10dp"
    android:layout_marginTop="@dimen/_20dp"
    android:text="@string/positives"
    android:textColor="@color/forest_green" />

<TextView
    android:id="@+id/tap_to_filter_pros"
    style="@style/small2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/rating_layout"
    android:layout_marginLeft="@dimen/_10dp"
    android:layout_marginTop="@dimen/_22dp"
    android:layout_toRightOf="@id/pros_label"
    android:text="@string/tap_to_filter"
    android:textColor="@color/light_gray_color" />

<android.support.v7.widget.RecyclerView
    android:id="@+id/pros_highlight_recyclerview"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/pros_label"
    android:layout_marginLeft="@dimen/_5dp"
    android:nestedScrollingEnabled="false" />

`

This is RecyclerView item layout

<com.google.android.flexbox.FlexboxLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/highlight_root"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="@dimen/_5dp">

    <TextView
        android:id="@+id/selected_icon"
        style="@style/icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="@dimen/_2dp"
        android:gravity="center"
        android:paddingLeft="@dimen/_5dp"
        android:text="@string/circular_tickbox"
        android:textSize="@dimen/_13dp" />

    <TextView
        android:id="@+id/name"
        style="@style/small"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="center"
        android:paddingBottom="@dimen/_6dp"
        android:paddingRight="@dimen/_13dp"
        android:paddingTop="@dimen/_6dp" />

</com.google.android.flexbox.FlexboxLayout>

[rahuldevanavar91]

if I use layoutManager.setFlexDirection(FlexDirection.COLUMN); this works perfectly.

[rahuldevanavar91]

Yes I excluded,

compile('com.google.android:flexbox:0.3.0-alpha4') {
        transitive = false
        exclude module: 'support-v4'
    }

now the app is crashing java.lang.NoClassDefFoundError: com.google.android.flexbox.FlexboxLayoutManager