my app crashes when i use this code (using com.google.android.material 1.6.1

Question

<LinearLayout

  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:orientation="vertical"
  android:layout_marginTop="20dp"
  android:layout_marginBottom="20dp">

// getting error in this part app crashed

<com.google.android.material.textfield.TextInputLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/username"
    style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox">

// using material theme version 1.6.1 <com.google.android.material.textfield.TextInputEditText

      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:hint="Username"
      android:textColorHint="#757575"/>

</com.google.android.material.textfield.TextInputLayout>