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I have tried many solutions on this website but still, the problem is not solved. The issue is due to Android X library. When I added Android X, this issue was resolved but it opened up new issue. I don't want to add Android X. How to fix this issue?

Earlier this error was coming:

Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add 'tools:replace="android:appComponentFactory"' to <application> element at AndroidManifest.xml:19:5-142:19 to override.

After I added tools:replace="android:appComponentFactory", this error is came:

 java.lang.RuntimeException: Manifest merger failed with multiple errors, see logs
at com.android.builder.core.AndroidBuilder.mergeManifestsForApplication(AndroidBuilder.java:540) 
at com.android.build.gradle.tasks.MergeManifests.doFullTaskAction(MergeManifests.java:173)

Merging Error (in Android Manifest):

Error: tools:replace specified at line:2 for attribute
android:appComponentFactory, but no new value specified app main
manifest (this file), line 1

Manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest
 package="com.example"
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 tools:replace="allowBackup, android:appComponentFactory"
 android:allowBackup="false">

 ...

 <application
 android:name="com.example"
 android:icon="@mipmap/icon"
 android:debuggable="true"
 android:hardwareAccelerated="false"
 android:largeHeap="true"
 android:supportsRtl="true"
 android:theme="@style/AppTheme"
 android:allowBackup="false"
 tools:ignore="GoogleAppIndexingWarning,HardcodedDebugMode">
 ...

dependencies block in module level build.gradle:

dependencies {
 implementation fileTree(include: ['*.jar'], dir: 'libs')
 implementation project(':autoupdatesdk-release')
 //AppCompat v7 support library
 //noinspection GradleCompatible
 implementation 'com.android.support:appcompat-v7:28.0.0'
 //AppCompat v4 support library
 implementation 'com.android.support:support-v4:28.0.0'

 //Support design
 implementation 'com.android.support:design:28.0.0'
 //Google Maps
 implementation 'com.google.android.gms:play-services-maps:16.0.0'
 //Retrofit - for making REST API calls
 implementation 'com.squareup.retrofit2:converter-gson:2.3.0'
 //For Runtime permissions
 implementation 'com.karumi:dexter:5.0.0'
 // https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api
 implementation group: 'javax.annotation', name: 'javax.annotation-api', version: '1.2'
 //To set custom fonts
 implementation 'uk.co.chrisjenx:calligraphy:2.2.0'
 //Attaches bullets to viewpager
 implementation 'com.robohorse.pagerbullet:pagerbullet:1.0.8'
 //Expandable recycler view
 implementation 'com.bignerdranch.android:expandablerecyclerview:3.0.0-RC1'
 //For Graph
 implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'
 //Date time
 implementation 'com.wdullaer:materialdatetimepicker:4.0.1'
 implementation 'com.appeaser.sublimepickerlibrary:sublimepickerlibrary:2.1.2'

 //Recycler View. Used in Select A Trip screen, Select A Site screen.
 implementation 'com.android.support:recyclerview-v7:28.0.0'
 implementation 'com.android.support:support-annotations:28.0.0'
 testImplementation 'junit:junit:4.12'
 androidTestImplementation 'com.android.support:support-annotations:28.0.0'
 androidTestImplementation 'com.android.support.test:runner:1.0.2'
 androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
 implementation 'com.android.support:cardview-v7:28.0.0'
 implementation 'jp.wasabeef:recyclerview-animators:2.2.6'
 implementation 'org.greenrobot:greendao:3.2.2'

 implementation 'net.danlew:android.joda:2.9.9.4'
 implementation 'com.github.barteksc:android-pdf-viewer:3.0.0-beta.5'
 implementation "org.jetbrains.kotlin:kotlin-stdlib:1.2.71"
 implementation 'org.jetbrains.anko:anko-common:0.8.3'
 implementation "io.reactivex.rxjava2:rxjava:2.1.12"
 implementation 'io.reactivex:rxjava:1.2.0'
 configurations.all 
 exclude group: 'com.android.support', module: 'support-v13'
 
 implementation 'com.squareup.retrofit2:converter-scalars:2.1.0'

 implementation 'com.squareup:android-times-square:1.6.5@aar'
 implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
 configurations.all 
 exclude group: 'com.android.support', module: 'support-v13'
 
 implementation "com.daimajia.swipelayout:library:1.2.0@aar"
 androidTestImplementation 'com.android.support.test.espresso:espresso-core:2.2.2', 
 exclude group: 'com.android.support', module: 'support-annotations'
 
 implementation 'com.elyeproj.libraries:loaderviewlibrary:1.4.1'
 implementation 'com.squareup.picasso:picasso:2.71828'
 implementation ('com.h6ah4i.android.widget.advrecyclerview:advrecyclerview:0.11.0@aar')
 transitive=true
 
 testImplementation 'junit:junit:4.12'
 testImplementation 'org.mockito:mockito-core:1.10.19'
 implementation 'com.android.support.constraint:constraint-layout:1.1.3'

 implementation('com.crashlytics.sdk.android:crashlytics:2.9.2@aar') 
 transitive = true
 

I think you are migrating to AndroidX libs.

Add below lines to gradle.properties file

android.useAndroidX=true
android.enableJetifier=true

Remove tools:replace="android:appComponentFactory" from manifest.

Replace android.support.v7.app.AppCompatActivity to androidx.appcompat.app.AppCompatActivity

Migrating to AndroidX

You can try adding:

android:appComponentFactory="android.support.v4.app.CoreComponentFactory"

To the tag <application > in your manifest.