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E/AndroidRuntime: FATAL EXCEPTION: main

    Process: com.example.rita.mpds, PID: 8331

    android.view.InflateException: Binary XML file line #91: Binary XML file line #91: Error inflating class <unknown>

    Caused by: android.view.InflateException: Binary XML file line #91: Error inflating class <unknown>

    Caused by: java.lang.reflect.InvocationTargetException

        at java.lang.reflect.Constructor.newInstance0(Native Method)

        at java.lang.reflect.Constructor.newInstance(Constructor.java:334)

        at android.view.LayoutInflater.createView(LayoutInflater.java:647)

        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790)

        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)

        at android.view.LayoutInflater.rInflate(LayoutInflater.java:863)

        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)

        at android.view.LayoutInflater.rInflate(LayoutInflater.java:866)

        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)

        at android.view.LayoutInflater.rInflate(LayoutInflater.java:866)

        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)

        at android.view.LayoutInflater.inflate(LayoutInflater.java:515)

        at android.view.LayoutInflater.inflate(LayoutInflater.java:423)

        at com.example.rita.mpds.Auxiliares.CartaoTipologiaAdapter.onCreateViewHolder(CartaoTipologiaAdapter.kt:17)

        at com.example.rita.mpds.Auxiliares.CartaoTipologiaAdapter.onCreateViewHolder(CartaoTipologiaAdapter.kt:15)

        at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6794)

        at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5975)

        at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858)

        at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854)

        at android.support.v7.widget.LayoutState.next(LayoutState.java:100)

        at android.support.v7.widget.StaggeredGridLayoutManager.fill(StaggeredGridLayoutManager.java:1609)

        at android.support.v7.widget.StaggeredGridLayoutManager.onLayoutChildren(StaggeredGridLayoutManager.java:683)

        at android.support.v7.widget.StaggeredGridLayoutManager.onLayoutChildren(StaggeredGridLayoutManager.java:605)

        at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3924)

        at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3336)

        at android.view.View.measure(View.java:23279)

        at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)

        at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)

        at android.view.View.measure(View.java:23279)

        at android.widget.ScrollView.measureChildWithMargins(ScrollView.java:2226)

        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)

        at android.widget.ScrollView.onMeasure(ScrollView.java:566)

        at android.view.View.measure(View.java:23279)

        at android.support.v4.widget.NestedScrollView.measureChildWithMargins(NestedScrollView.java:1502)

        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)

        at android.support.v4.widget.NestedScrollView.onMeasure(NestedScrollView.java:556)

        at android.view.View.measure(View.java:23279)

        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)

        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)

        at android.view.View.measure(View.java:23279)

        at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1638)

        at android.view.View.measure(View.java:23279)

        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)

        at android.support.design.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:733)

        at android.support.design.widget.HeaderScrollingViewBehavior.onMeasureChild(HeaderScrollingViewBehavior.java:95)

        at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onMeasureChild(AppBarLayout.java:1556)

        at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:803)

        at android.view.View.measure(View.java:23279)

E/AndroidRuntime:     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)

        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)

        at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143)

        at android.view.View.measure(View.java:23279)

        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)

        at android.support.v7.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:401)

        at android.view.View.measure(View.java:23279)

        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)

        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)

        at android.view.View.measure(View.java:23279)

        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)

        at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)

        at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)

        at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)

        at android.view.View.measure(View.java:23279)

        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)

        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)

        at com.android.internal.policy.DecorView.onMeasure(DecorView.java:898)

        at android.view.View.measure(View.java:23279)

        at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2873)

        at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1910)

        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2221)

        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1779)

        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7810)

        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)

        at android.view.Choreographer.doCallbacks(Choreographer.java:723)

        at android.view.Choreographer.doFrame(Choreographer.java:658)

        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)

        at android.os.Handler.handleCallback(Handler.java:789)

        at android.os.Handler.dispatchMessage(Handler.java:98)

        at android.os.Looper.loop(Looper.java:164)

        at android.app.ActivityThread.main(ActivityThread.java:6938)

        at java.lang.reflect.Method.invoke(Native Method)

        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)

        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)

     Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.AppCompat (or a descendant).

        at android.support.design.internal.ThemeEnforcement.checkTheme(ThemeEnforcement.java:221)

        at android.support.design.internal.ThemeEnforcement.checkAppCompatTheme(ThemeEnforcement.java:196)

        at android.support.design.internal.ThemeEnforcement.checkCompatibleTheme(ThemeEnforcement.java:131)

        at android.support.design.internal.ThemeEnforcement.obtainTintedStyledAttributes(ThemeEnforcement.java:110)

        at android.support.design.widget.BottomNavigationView.<init>(BottomNavigationView.java:138)

        at android.support.design.widget.BottomNavigationView.<init>(BottomNavigationView.java:114)

            ... 83 more

This is the error that AS gave me, and I know this type a answer has been answered many times before but... I think we got a different problem now. I've checked all the sizes of the items that BottomNavigation has, and here it go one exemple of it:

<vector android:height="24dp" android:viewportHeight="24"

android:viewportWidth="24" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">

<path android:fillColor="#FFFFFF" android:pathData="M21,9H15V22H13V16H11V22H9V9H3V7H21M12,2A2,2 0,0 1,14 4A2,2 0,0 1,12 6C10.89,6 10,5.1 10,4C10,2.89 10.89,2 12,2Z"/>

So, the BottomNavigation is part of the item of the RecyclerView, and when I comment it the app run, thus... maybe the problem is here:

<android.support.design.widget.BottomNavigationView

            android:id="@+id/nav_bottom"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:layout_marginTop="15dp"

            android:background="#c2766f"

            app:itemIconTint="@color/white"

            app:itemTextColor="@color/white"

            app:layout_constraintTop_toBottomOf="@id/pageIndicatorView"

            app:layout_constraintBottom_toBottomOf="parent"

            app:labelVisibilityMode="labeled"

            app:menu="@menu/menu_cdu"/>

The menu:

 <menu

    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools">

    <item

        android:id="@+id/localizacao_barra_cartao"

        android:orderInCategory="1"

        android:icon="@drawable/ic_chart"

        app:showAsAction="always|collapseActionView"

        android:title="Localização">

    </item>



    <item

        android:id="@+id/relatorio_barra_cartao"

        android:orderInCategory="2"

        android:icon="@drawable/ic_chart"

        app:showAsAction="always|collapseActionView"

        android:title="Relatório">

    </item>



    <item

        android:id="@+id/sopiniao_barra_cartao"

        android:orderInCategory="3"

        android:icon="@drawable/ic_chart"

        app:showAsAction="always|collapseActionView"

        android:title="2ª Opinião">

    </item>



    <item

        android:id="@+id/nova_foto_barra_cartao"

        android:orderInCategory="4"

        android:icon="@drawable/ic_chart"

        app:showAsAction="always|collapseActionView"

        tools:ignore="MenuTitle"

        android:visible="true"

        android:title="Nova foto">

    </item>

</menu>

Thank you @TheWanderer, for the right answer!

I just added the android:theme="@style/Base.Theme.AppCompat to my BottomNavigationView in XML. It works!