Error inflating class com.google.android.material.button.MaterialButton

What could be the problem? The button is implemented as a MaterialButton. All the necessary libraries and styles are connected.

<com.google.android.material.button.MaterialButton android:id="@+id/Find" style="@style/Widget.MaterialComponents.Button.OutlinedButton" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Find" android:textSize="12dp" android:onClick="Find"/> 

gradle

  compile group: 'com.google.android.material', name: 'material', version: '1.1.0-alpha05' compile group: 'com.android.support', name: 'design', version: '28.0.0' compile group: 'com.android.support', name: 'appcompat-v7', version: '28.0.0' 

Styles

 <style name="Widget.MaterialComponents.Button" parent="Widget.AppCompat.Button"> <item name="enforceMaterialTheme">true</item> <item name="enforceTextAppearance">true</item> <item name="android:textAppearance">?attr/textAppearanceButton</item> <item name="android:textColor">@color/mtrl_btn_text_color_selector</item> <item name="android:paddingLeft">@dimen/mtrl_btn_padding_left</item> <item name="android:paddingRight">@dimen/mtrl_btn_padding_right</item> <item name="android:paddingTop">@dimen/mtrl_btn_padding_top</item> <item name="android:paddingBottom">@dimen/mtrl_btn_padding_bottom</item> <item name="android:insetLeft">0dp</item> <item name="android:insetRight">0dp</item> <item name="android:insetTop">@dimen/mtrl_btn_inset</item> <item name="android:insetBottom">@dimen/mtrl_btn_inset</item> <item name="android:stateListAnimator" tools:ignore="NewApi">@animator/mtrl_btn_state_list_anim</item> <item name="cornerRadius">@null</item> <item name="elevation">@dimen/mtrl_btn_elevation</item> <item name="iconPadding">@dimen/mtrl_btn_icon_padding</item> <item name="iconTint">@color/mtrl_btn_text_color_selector</item> <item name="rippleColor">@color/mtrl_btn_ripple_color</item> <item name="backgroundTint">@color/mtrl_btn_bg_color_selector</item> <item name="shapeAppearance">?attr/shapeAppearanceSmallComponent</item> </style> <style name="Widget.MaterialComponents.Button.OutlinedButton" parent="Widget.MaterialComponents.Button.TextButton"> <item name="android:paddingLeft">@dimen/mtrl_btn_padding_left</item> <item name="android:paddingRight">@dimen/mtrl_btn_padding_right</item> <item name="strokeColor">@color/mtrl_btn_stroke_color_selector</item> <item name="strokeWidth">@dimen/mtrl_btn_stroke_size</item> </style>