android.support.v7.widget.CardView (Fix Build Path, Edit XML, Create Class) Using Android Studio 3.4

Question

I've been building an app and it's been working well until I updated to the latest Android Studio. I've been getting the error " android.support.v7.widget.CardView (Fix Build Path, Edit XML, Create Class)" My cardview doesn't show the image. The app compiles well and installs to my phone but crashes on start up. And it was working fine yesterday. I have the lastest dependencies and I don't know why my cardviewer isn't working. Any solution? Do I need to downgrade the sdkversion? I've looked everywhere and followed a lot of fixes and now I'm literally pulling my hair off trying to get this one error to be fixed. Changing the currently dependencies to match the buildToolsVersion doesn't seem to work either.

A picture of my error

XML

<?xml version="1.0" encoding="utf-8"?>
<ScrollView 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"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Suicune">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bg"
    android:orientation="vertical"
    android:weightSum="12">


    <GridLayout
        android:id="@+id/mainGrid"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="6"
        android:alignmentMode="alignMargins"
        android:columnCount="1"
        android:columnOrderPreserved="false"
        android:padding="14dp"
        android:rowCount="3">

        <!-- Row 1 -->

        <!-- Column 1 -->
        <android.support.v7.widget.CardView
            android:layout_width="1dp"
            android:layout_height="1dp"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:layout_marginLeft="90dp"
            android:layout_marginRight="90dp"
            android:layout_marginBottom="16dp"
            app:cardCornerRadius="5dp"
            app:cardElevation="8dp">

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal|center_vertical"
                android:layout_margin="0dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/suicuneframedata_button"
                    android:layout_width="wrap_content"
                    android:scaleType="fitXY"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_horizontal"
                    android:src="@drawable/framedata_button" />


            </LinearLayout>

        </android.support.v7.widget.CardView>

        <!-- Column 2 -->
        <android.support.v7.widget.CardView

            android:layout_width="1dp"
            android:layout_height="1dp"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:layout_marginLeft="90dp"
            android:layout_marginRight="90dp"
            android:layout_marginBottom="16dp"
            app:cardCornerRadius="5dp"
            app:cardElevation="8dp">

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal|center_vertical"
                android:layout_margin="0dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/suicunecombosheets_button"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:scaleType="fitXY"
                    android:layout_gravity="center_horizontal"
                    android:src="@drawable/combosheets_button" />


            </LinearLayout>

        </android.support.v7.widget.CardView>


        <android.support.v7.widget.CardView
            android:layout_width="1dp"
            android:layout_height="1dp"
            android:layout_rowWeight="1"
            android:layout_columnWeight="1"
            android:layout_marginLeft="90dp"
            android:layout_marginRight="90dp"
            android:layout_marginBottom="16dp"
            app:cardCornerRadius="5dp"
            app:cardElevation="8dp">

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal|center_vertical"
                android:layout_margin="0dp"
                android:orientation="vertical">

                <ImageView
                    android:id="@+id/suicunenotableplayers_button"
                    android:layout_width="wrap_content"
                    android:scaleType="fitXY"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_horizontal"
                    android:src="@drawable/notableplayers_button" />


            </LinearLayout>

        </android.support.v7.widget.CardView>

    </GridLayout>

</LinearLayout>

Java Class

package com.example.sayafkadam.ptdxassault;

 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.ImageView;

 import androidx.appcompat.app.AppCompatActivity;

 public class Suicune extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_suicune);

    getSupportActionBar().setTitle("Suicune Database");
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    ImageView FrameData;
    ImageView ComboSheets;
    ImageView NotablePlayers;


    FrameData = (ImageView) findViewById(R.id.suicuneframedata_button);
    FrameData.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intentLoadSuicuneInfo = new Intent(Suicune.this,           
    SuicuneFD.class);
            startActivity(intentLoadSuicuneInfo);
        }
    });


    NotablePlayers = (ImageView) findViewById(R.id.suicunenotableplayers_button);
    NotablePlayers.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intentLoadNotablePlayers = new Intent(Suicune.this, 
 SuicuneNP.class);
            startActivity(intentLoadNotablePlayers);
        }
    });
 }
 }

My Gradle

apply plugin: 'com.android.application'

 android {
compileSdkVersion 28
defaultConfig {
    applicationId "com.example.sayafkadam.ptdxassault"
    minSdkVersion 15
    targetSdkVersion 28
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner 
 "android.support.test.runner.AndroidJUnitRunner"
 }
 buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 
 'proguard-rules.pro'
    }
 }
 buildToolsVersion = '28.0.3'
 }

  dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:cardview-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
implementation 'com.android.support:gridlayout-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.github.chrisbanes:PhotoView:2.2.0'
implementation 'com.github.barteksc:android-pdf-viewer:3.1.0-beta.1'
implementation 'gr.pantrif:easy-android-splash-screen:0.0.1'
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'

 }

Answer 1

Can you try using

 implementation 'androidx.cardview:cardview:1.0.0'

Instead and

androidx.cardview.widget.CardView

In XML?