Android Material and appcompat Manifest merger failed

Question

I have next grade       dependencies       implementation fileTree dir   libs   include      jar        implementation  com android support appcompat-v7 28 0 0-rc01      implementation  com android support constraint constraint-layout 1 1 2      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 google android material material 1 0 0-rc01      But when I want to build app I get next log   Manifest merger failed   Attribute application appComponentFactory value  android support v4 app CoreComponentFactory  from  com android support support-compat 28 0 0-alpha3  AndroidManifest xml 22 18-91     is also present at  androidx core core 1 0 0-alpha3  AndroidManifest xml 22 18-86 value  androidx core app CoreComponentFactory       Suggestion  add  tools replace  android appComponentFactory   to  lt application gt  element at AndroidManifest xml 5 5-19 19 to override    Okey  Go to manifest and do it    lt  xml version  1 0  encoding  utf-8   gt   lt manifest xmlns android  http   schemas android com apk res android      xmlns tools  http   schemas android com tools      package  ru chopcode myapplication  gt        lt application         tools replace  android appComponentFactory          android allowBackup  true          android icon   mipmap ic launcher          android label   string app name          android roundIcon   mipmap ic launcher round          android supportsRtl  true          android theme   style AppTheme  gt       lt  application gt    lt  manifest gt    Then I get this error in my Logcat   Manifest merger failed with multiple errors  see logs that I have Linked with it

User · Answer

Create new project and compare your build.gradle files and replaced all

implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.1'

and other dependencies with the same as were in a new project someting like that

implementation 'androidx.appcompat:appcompat:1.0.0-alpha3'

implementation 'androidx.constraintlayout:constraintlayout:1.1.2'

implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0-alpha1'

androidTestImplementation 'androidx.test:runner:1.1.0-alpha3'

androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha3'

implementation 'androidx.core:core-ktx:1.0.0-alpha3'

And then fixed imports to use androidx in kotlin files.

User · Answer

I had this same problem for three days   It is like android wants us to either use Kotlin Or AndroidX  they are doing away with Android   But this is how I solved it    I migrated my project to AndroidX  This does not bring in any errors related to this issue in question  It updates files respectively  No method  class or variable name needs to be changed in your application    NB  You must be using the latest Libraries  build grudle file  in the latest stable version of android studio 3 4 1

User · Answer

In my case  this is working perfectly   I have added below two line codes inside manifest file  tools replace  android appComponentFactory  android appComponentFactory  whateverString    Credit goes to this answer

User · Answer

Reason of Fail You are using material library which is part of AndroidX  If you are not aware of AndroidX  please go through this answer   One app should use either AndroidX or old Android Support libraries  That s why you faced this issue   For example - In your gradle  you are using  com android support appcompat-v7  Part of old --Android Support Library--  com google android material material  Part of AndroidX   AndroidX build artifact of com android support design   Solution So the solution is to use either AndroidX or old Support Library  I recommend to use AndroidX  because Android will not update support libraries after version 28 0 0  See release notes of Support Library  Just migrate to AndroidX Here is my detailed answer to migrate to AndroidX  I am putting here the needful steps from that answer  Before you migrate  it is strongly recommended to backup your project   Existing project   Android Studio  gt  Refactor Menu  gt  Migrate to AndroidX    It will analysis and will open Refractor window in bottom  Accept changes to be done     New project  Put these flags in your gradle properties android enableJetifier true android useAndroidX true  Check  Library mappings for equal AndroidX package  Check  Official page of Migrate to AndroidX What is Jetifier

User · Answer

Its all about the library versions compatibility   I was facing this strange bug couple of 2 hours  I resolved this error by doing these steps  hange your build gradle dependencies into    implementation  com google android gms play-services-maps 17 0 0    to    implementation  com google android gms play-services-maps 15 0 0

User · Answer

This issue mainly happened for old dependencies   There have 2 solution   First one   Update all old dependencies and ClassPaths from Project level gradle files   classpath  com android tools build gradle 3 3 1  classpath  com google gms google-services 4 2 0    Second one   Your project Migrate to AndroidX  From Android Studio Menu -  Refanctor -  Migrate to AndroidX  Thanks  let me know if anyone help from this answer

User · Answer

in my case i am add in manifest file    tools replace  android appComponentFactory  android appComponentFactory  whateverString    application tag of course  It will work

User · Answer

just add these two lines of code to your Manifest file  tools replace  android appComponentFactory  android appComponentFactory  whateverString

User · Answer

Please go to Refactor- Migrate- Migrate to Android X  Please add this to your gradle properties file   android enableJetifier true android useAndroidX true    And perform Sync

User · Answer

Just change  rc01  in first and last line inside dependencies to  alpha1  This is working for me

User · Answer

Migrate to androidX if it an existing project  If it is new project add these two flags to Gradle propeties   android enableJetifier true   android useAndroidX true   for more detail steps https   developer android com jetpack androidx or check this What is AndroidX

User · Answer

If you do not intend to migrate to AndroidX follow the below steps   In terminal type gradlew app dependencies After dependencies are shown in the window press Ctrl f and type androidX You will find all the dependencies which are using androidx lib internally you may have to downgrade that or use alternative for that to ensure it is no longer using androidX libs internally

User · Answer

Add these lines inside  in AndroidManifest xml file   tools replace  android appComponentFactory   android appComponentFactory  whateverString

User · Answer

I had similar problem  Added two lines in gradle properties file   android useAndroidX true android enableJetifier true   These two lines automatically resolved my dependency conflicts between google s files and third party dependencies  Here s the link to follow  https   developer android com topic libraries support-library androidx-overview new-project

User · Answer

Go to Refactor  Image   Click the Migrate to AndroidX  it s working it s working

User · Answer

Try this  tools replace  android appComponentFactory  android appComponentFactory  android support v4 app CoreComponentFactory    Rebuild your project

User · Answer

if you are using capacitor  upgrade to capacitor core 2 0 1 or up in your package json

User · Answer

Just remove the android support dependancy     implementation  com android support appcompat-v7 28 0 0-rc01   Quoting From Material Guidelines  If you don   t want to switch over to the new androidx and com google android material packages yet  you can use Material Components via the com android support design 28 0 0-alpha3 dependency  Note  You should not use the com android support and com google android dependencies in your app at the same time   Just removing this dependency works fine     implementation  com android support appcompat-v7 28 0 0-rc01   Here is complete dependencies example     dependencies          implementation fileTree dir   libs   include      jar           implementation  com google android material material 1 0 0-beta01         implementation  com android support constraint constraint-layout 1 1 2         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

User · Answer

I had the same error when working with Groupie  implementation  com xwray groupie 2 3 0   I solved it by changing version to implementation  com xwray groupie 2 1 0

User · Answer

For solving this issue i would recommend to define explicitly the version for the ext variables at the android build gradle at your root project  ext       googlePlayServicesVersion    16 1 0     default          firebaseVersion    15 0 2     default              Other settings     compileSdkVersion    lt Your compile SDK version gt     default  23     buildToolsVersion     lt Your build tools version gt      default   23 0 1      targetSdkVersion    lt Your target SDK version gt     default  23     supportLibVersion     lt Your support lib version gt      default  23 1 1     reference  https   github com zo0r react-native-push-notification issues 1109 issuecomment-506414941

User · Answer

Finally found a quick and easy solution by adding two lines in the android build gradle file   googlePlayServicesVersion    16     firebaseVersion    17 6 0    Please follow this 100  correct

User · Answer

See This Image and Add This line in your android AndroidManifest xml  tools replace  android appComponentFactory  android appComponentFactory  whateverString

User · Answer

I don t know this is the proper answer or not but it worked for me   Increase Gridle Wrapper Property  distributionUrl https    services gradle org distributions gradle-5 1 1-all zip   and Build Gridle to      classpath  com android tools build gradle 3 4 2    its showing error because of the version

User · Answer

Follow these steps      Goto Refactor and Click Migrate to AndroidX Click Do Refactor

User · Answer

In may case I didn t want to pass to androidX  And I have to check my last changes  I figure out that the new component was --  lottie 2 8 0  So I downgrade it to  implementation  com airbnb android lottie 2 7 0

User · Answer

All I did was go to the  Refactor  option on the top menu   Then select  Migrate to AndroidX   Accept to save the project as a zip file   Please update Android Studio as well as Gradle to ensure no problems are encountered

User · Answer

change your build gradle dependencies into   implementation  com android support appcompat-v7 28 0 0-alpha3    or   implementation  com android support appcompat-v7 28 0 0-alpha1

User · Answer

First of all be sure to add this line in manifest tag  xmlns tools  https   schemas android com tools    Then add tools replace your suggested one in Android studio

User · Answer

1 Added these codes to at the end of your app build gradle    configurations all      resolutionStrategy force  com android support support-v4 28 0 0         the above lib may be old dependencies version                2 Modified sdk and tools version to 28   compileSdkVersion 28 buildToolsVersion  28 0 3  targetSdkVersion  28   3 In your AndroidManifest xml file  you should add two line    lt application     android name   YourApplication      android appComponentFactory  AnyStrings      tools replace  android appComponentFactory      android icon   drawable icon      android label   string app name      android largeHeap  true      android theme   style Theme AppCompat Light NoActionBar  gt    Or Simply    Go to Refactor  Studio -  Menu -  Refactor  Click the Migrate to AndroidX  it s working it s working

User · Answer

Only If you don t want to use androidx  So in my case  I am using a library that was using androidx but I am not using androidx so when I downgraded that library version the problem was resolved   In my Case   implementation  com github turing-tech MaterialScrollBar 13      the above-mentioned library makes problem 13   will automatically get a new version of the library which using androidx  So I downgraded library version to   implementation  com github turing-tech MaterialScrollBar 13 2 5    And the problem was resolved

User · Answer

Simple Solutions - migrate into AndroidX  in the gradle properties  just add below two scripts  android useAndroidX true android enableJetifier true   What was the reason       All packages in AndroidX live in a consistent namespace starting with the string androidx  The Support Library packages have been mapped into the corresponding androidx   packages  For a full mapping of all the old classes and build artifacts to the new ones  see the Package Refactoring page    Please see the Package Refactoring page

User · Answer

As of Android P  the support libraries have been moved to AndroidX  Please do a refactor for your libs from this page   https   developer android com topic libraries support-library refactor

User · Answer

I faced same error when i try to add Kotlin-KTX library to my project   I try to AndroidX migration  and problem fixed

User · Answer

I m also facing the same issue  for your android studio  you just change the android Gradle plugin version 3 3 2 and Gradle version is 5 1 1

User · Answer

Change proguardFile in build gradle  Module  app  to the following  proguardFiles getDefaultProguardFile  proguard-android-optimize txt     proguard-rules pro    instead of   proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro    This worked for me

[android] Android Material and appcompat Manifest merger failed

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