Error package android support v7 app does not exist

Question

I am new to android development  and I have been using the command line tools to create an android project   I followed all the instructions given in the tutorial at android developers   However  they are focused more on IDE users   When I tried extending my MainActivity class from ActionBarActivity instead of just Activity  it threw the following error   error  package android support v7 app does not exist  It was complaining about this import statement   import android support v7 app ActionBarActivity    I made sure to visit the SDK manager  and it says Android Support Library is installed  I am truly stumped on this one  and I would really appreciate any help you guys could give me   This might help  http   developer android com reference android support v7 app ActionBarActivity html

User · Answer

If you are using SDK 28 or higher  you need to migrate to AndroidX library    With Android Studio 3 2 and higher  you can migrate an existing project to AndroidX by selecting Refactor   Migrate to AndroidX from the menu bar

User · Answer

If you are using latest Android Studio  then v7 libraries contradict with AndroidX  only you have to do is      In Project files go in gradle properties       Find out android useAndroidX true then set it to android useAndroidX false       Find out android enableJetifier true then set it to android enableJetifier false   Rebuild your project  all will working fine

User · Answer

It is 2020 December  The same problem came to me in a different way  When I was going to Deploy in google play store  it said I have to create the bundle higher than android v28 and I updated my projects Compile using Android Version 30  in Xamarin Android project properties   It was not possible to do it with the same error  Android support library has no support for V7   I tried everything mentioned above and was not working and here is what worked for me  I was using this in splashactivity cs using Android Support V7 App   And it is the one giving the trouble and i changed it into V4 using Android Support V4 App   then AppCompatActivity was underlined red and I had to get androidx appcompat app as follows using AndroidX AppCompat App   Now it is working and it may help someone else too

User · Answer

For those who migrated to androidx  here is a list of mappings to new packages  https   developer android com jetpack androidx migrate class mappings  Use implementation  androidx appcompat appcompat 1 0 0   Instead support library implementation  com android support appcompat-v7 28 0 0

User · Answer

I just got this error today and this is how I fixed    On my build output  I double click on the class with the error   After the class opened  I expanded the imports section and deleted existing imports with errors   I then hovered my mouse near the errors which were RecyclerView LinearLayoutManager  and FragmentTransaction and chose Alt Enter to import appropriate classes    Note  in my case  the error occured after I migrated one of my old projects to androidx and so imports hard to be androidx related  I am using android studio   Note  You may run into other issues  so everytime I run into an error  I check other called classes and makes sure their imports are correct  What I do mostly is press ctrl shift R  and put the old import in the first field and the correct import on the second field and then replace all  This way  I replace all imports that in the project at once   You can use ctrl shift f to find where imports are used

User · Answer

If the issue reported from MainActivity java then replace   import android support v7 app AppCompatActivity    with   import androidx appcompat app AppCompatActivity

User · Answer

try to copy C  Program Files Java jdk1 8 0 121   amp  amp  C  Program Files Java jre1 8 0 121 from other working PC then all  clean  amp  amp  rebuild

User · Answer

After Rebuild the project issue resolved

User · Answer

I m a beginner but what I did for my code to work was to import androidx hence replacing the android v7 then I erased the support v7 line and my code worked  I m sorry I couldn t explain in more technical terms but that s what worked for me  Actually the Java codes were codes I copied from an old tutorial hence the error encountered  Hope this helps

User · Answer

If your app is AndroidX  This response may apply to your problem   npm install --save-dev jetifier npx jetify  may take a while  npx react-native run-android

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If you have a problem with dependencies when download a new version  try    FILE    MANAGE IDE SETTINGS   RESTORE DEFAULT SETTINGS Si tienes un problema con las dependencias cuando actualizas a una nueva versi  n  intenta   FILE  MANAGE IDE SETTINGS   RESTORE DEFAULT SETTINGS

User · Answer

For what it s worth   I ran in to this issue when using Xamarin  even though I did have the Support packages installed  both the v4 and the v7 ones   It was resolved for me by doing Build -  Clean All

User · Answer

Using Android Studio you have to add the dependency of the support library that was not indicated in the tutorial  dependencies        implementation  com android support appcompat-v7 22 0 0

User · Answer

Switching to AndroidX helped me  import androidx appcompat app AppCompatActivity

User · Answer

I use  npx jetifier this fix the problem  ref  Cannot build Ionic App on Android once installed BackgroundGeolocation Plugin with Capacitor

User · Answer

First of all check if your project is using androidx or android support library  Check gradle properties file      android useAndroidX true      android enableJetifier true   If it contains the above lines  it is using androidx with an old code from some old tutorial   In build gradle  module app   Use   implementation  androidx appcompat appcompat 1 0 0    Instead of  compile  com android support appcompat-v7 28 0 0    Also in MainActivity java   Use   import androidx appcompat app AppCompatActivity    instead of    import android support v7 app AppCompatActivity

User · Answer

Your project is missing the support library from the SDK   If you have no installed them  just right click on the project  gt  Android Tools  gt  Install support library   Then  just import into workspace  as an Android project  android-support-v7-appcompat  located into   android-sdk-path  extras android support v7  And finally  right click in the Android project  gt  Properties  gt  Android Tab  Push the Add button and add the support project  android-support-v7-appcompat  as dependency   Clean your project and the must compile and work properly

User · Answer

For AndroidX implement following lib in gridle  implementation  androidx palette palette 1 0 0   and import following class in activity -   import androidx palette graphics Palette   for more info see class and mapping for AndroidX https   developer android com jetpack androidx migrate artifact-mappings https   developer android com jetpack androidx migrate class-mappings

[android] Error "package android.support.v7.app does not exist"

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