Android design support library for API 28 P not working

Question

I ve configured android-P SDK environment successfully  When I attempt to use the android design support library I face project build errors  Project configurations are   IDE  3 2 Canary 17 Target API  28 Compile API  28  apply plugin   com android application   apply plugin   kotlin-android   apply plugin   kotlin-android-extensions   android       compileSdkVersion 28     defaultConfig           applicationId  com app navigationpoc          minSdkVersion 21         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                     dependencies       implementation fileTree include      jar    dir   libs       implementation  org jetbrains kotlin kotlin-stdlib-jdk7  kotlin version      implementation  androidx appcompat appcompat 1 0 0-alpha3      implementation  androidx constraintlayout constraintlayout 1 1 1       testImplementation  junit junit 4 12      androidTestImplementation  androidx test runner 1 1 0-alpha3      androidTestImplementation  androidx test espresso espresso-core 3 1 0-alpha3       implementation  com android support design 28 0 0-alpha3      implementation  com android support cardview-v7 28 0 0-alpha3      And build failed error is      Manifest merger failed   Attribute application appComponentFactory   value  androidx core app CoreComponentFactory  from    androidx core core 1 0 0-alpha3  AndroidManifest xml 22 18-86    is   also present at  com android support support-compat 28 0 0-alpha3    AndroidManifest xml 22 18-91   value  android support v4 app CoreComponentFactory    Suggestion  add    tools replace  android appComponentFactory   to  element   at AndroidManifest xml 6 5-40 19 to override

User · Answer

Adding androidTestImplementation  androidx test runner 1 2 0-alpha05  works for me

User · Answer

I cross that situation by replacing  all androidx   to appropiate package name   change your line   implementation  androidx appcompat appcompat 1 0 0-alpha3  implementation  androidx constraintlayout constraintlayout 1 1 1   androidTestImplementation  androidx test runner 1 1 0-alpha3  androidTestImplementation  androidx test espresso espresso-core 3 1 0-alpha3    to  implementation  com android support appcompat-v7 28 0 0-alpha3  implementation  com android support constraint constraint-layout 1 1 1   androidTestImplementation  com android support test runner 1 0 2  androidTestImplementation  com android support test espresso espresso-core 3 0 2    NOTED    remove  tools replace  android appComponentFactory  from AndroidManifest

User · Answer

I ve used that option      With Android Studio 3 2 and higher  you can quickly migrate an   existing project to use AndroidX by selecting Refactor   Migrate to   AndroidX from the menu bar    https   developer android com jetpack androidx migrate

User · Answer

Below code worked perfectly with me   dependencies       api  com android support design 28 0 0-alpha3       implementation fileTree dir   libs   include      jar        implementation  org jetbrains kotlin kotlin-stdlib-jdk7  kotlin version       testImplementation  junit junit 4 12       androidTestImplementation  androidx test runner 1 1 0-alpha2      androidTestImplementation  androidx test espresso espresso-core 3 1 0-alpha2

User · Answer

Try this   implementation  com android support appcompat-v7 28 0 0-alpha1

User · Answer

Android documentation is clear on this Go to the below page Underneath there are two columns with names  OLD BUILD ARTIFACT  and  AndroidX build artifact    https   developer android com jetpack androidx migrate  Now you have many dependencies in gradle Just match those with Androidx build artifacts and replace them in the gradle   That won t be enough   Go to your MainActivity  repeat this for all activities  and remove the word AppCompact Activity in the statement  public class MainActivity extends AppCompatActivity   and write the same word again But this time androidx library gets imported Until now appcompact support file got imported and used  also  remove that appcompact import statement    Also go to your layout file  Suppose you have a constraint layout then you can notice that the first line constraint layout in xml file have something related to appcompact So just delete it and write Constraint layout again But now androidx related constraint layout gets added   repeat this for as many activities and as many xml layout files    But don t worry  Android Studio displays all such possible errors while compiling

User · Answer

You can either use the previous API packages version of artifacts or the new Androidx  never both   If you wanna use the previous version  replace your dependencies with  dependencies       implementation fileTree include      jar    dir   libs       implementation  org jetbrains kotlin kotlin-stdlib-jdk7  kotlin version      implementation  com android support appcompat-v7 28 0 0-alpha3      implementation  com android support constraint constraint-layout 1 1 1       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 android support design 28 0 0-alpha3      implementation  com android support cardview-v7 28 0 0-alpha3      if you want to use Androidx   dependencies       implementation fileTree include      jar    dir   libs       implementation  org jetbrains kotlin kotlin-stdlib-jdk7  kotlin version      implementation  androidx appcompat appcompat 1 0 0-alpha3      implementation  androidx constraintlayout constraintlayout 1 1 1       testImplementation  junit junit 4 12      androidTestImplementation  androidx test runner 1 1 0-alpha3      androidTestImplementation  androidx test espresso espresso-core 3 1 0-alpha3       implementation  com google android material material 1 0 0-alpha3      implementation  androidx cardview cardview 1 0 0-alpha3

User · Answer

Important Update  Android will not update support libraries after 28 0 0      This will be the last feature release under the android support   packaging  and developers are encouraged to migrate to AndroidX 1 0 0    So use library AndroidX     Don t use both Support and AndroidX in project  Your library module or dependencies can still have support libraries  Androidx Jetifier will handle it  Use stable version of androidx or any library  because alpha  beta  rc can have bugs which you dont want to ship with your app    In your case  dependencies       implementation  androidx appcompat appcompat 1 0 0      implementation  androidx constraintlayout constraintlayout 1 1 1       implementation  com google android material material 1 0 0      implementation  androidx cardview cardview 1 0 0

User · Answer

open file gradle properties and add these two lines to it   android useAndroidX   true android enableJetifier   true   clean and build

User · Answer

1 Added these codes to your app build gradle   configurations all      resolutionStrategy force  com android support support-v4 26 1 0     the lib is old dependencies version             2 Modified sdk and tools version to 28   compileSdkVersion 28 buildToolsVersion  28 0 3  targetSdkVersion  28   2 In your AndroidManifest xml file  you should add two line    lt application     android name   YourApplication      android appComponentFactory  anystrings be placeholder      tools replace  android appComponentFactory      android icon   drawable icon      android label   string app name      android largeHeap  true      android theme   style Theme AppCompat Light NoActionBar  gt    Thanks for the answer  Carlos Santiago   Android design support library for API 28  P  not working

User · Answer

if you want to solve this problem without migrating to AndroidX  I don t recommend it   this manifest merger issue is related to one of your dependency using androidX    you need to decrease this dependency s release version   for my case     I was using google or firebase  api  com google android gms play-services-base 17 1 0    I have to decrease it 15 0 1 to use in support library

User · Answer

Had similar problem   Added in build gradle and it worked for me    compileOptions           sourceCompatibility JavaVersion VERSION 1 8         targetCompatibility JavaVersion VERSION 1 8

User · Answer

First of all  you should look gradle properties and these values have to be true  If you cannot see them you have to write  android useAndroidX true android enableJetifier true  After that you can use AndroidX dependencies in your build gradle  Module  app   Also  you have to check compileSDKVersion and targetVersion  They should be minimum 28  For example I am using 29  So  an androidx dependency example  implementation  androidx cardview cardview 1 0 0    However be careful because everything is not start with androidx like cardview dependency  For example  old design dependency is   implementation  com android support design 27 1 1    But new design dependency is   implementation  com google android material material 1 3 0    RecyclerView is   implementation  androidx recyclerview recyclerview 1 1 0   So  you have to search and read carefully  Happy code   canerkaseler

User · Answer

Google has introduced new AndroidX dependencies  You need to migrate to AndroidX  it s simple    I replaced all dependencies to AndroidX dependencies     Old design dependency   implementation  com android support design 28 0 0       New AndroidX design dependency   implementation  com google android material material 1 0 0-rc01    you can find AndroidX dependencies here  https   developer android com jetpack androidx migrate   Automatic AndroidX migration option  supported on android studio 3 3    Migrate an existing project to use AndroidX by selecting Refactor   Migrate to AndroidX from the menu bar

User · Answer

Design support library for androidX is implementation  com google android material material 1 0 0

User · Answer

Note  You should not use the com android support and com google android material dependencies in your app at the same time   Add Material Components for Android in your build gradle app  file  dependencies                  implementation  com google android material material 1 0 0-beta01                   If your app currently depends on the original Design Support Library  you can make use of the Refactor to AndroidX    option provided by Android Studio  Doing so will update your app   s dependencies and code to use the newly packaged androidx and com google android material libraries   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

User · Answer

Add this   tools replace  android appComponentFactory  android appComponentFactory  whateverString    to your manifest application   lt application     android icon   mipmap ic launcher      android label   string app name      android roundIcon   mipmap ic launcher round      tools replace  android appComponentFactory      android appComponentFactory  whateverString  gt    hope it helps

[android] Android design support library for API 28 (P) not working

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