Failed to resolve com android support appcompat-v7 26 0 0

Question

I am having this issue in Android studio   Error  22  13  Failed to resolve  com android support appcompat-v7 26 0 0  lt a href  install m2 repo  gt Install Repository and sync project lt  a gt  lt br gt  lt a href  openFile C  Users username AndroidStudioProjects ElectroSave app build gradle  gt Show in File lt  a gt  lt br gt  lt a href  open dependency in project structure  gt Show in Project Structure dialog lt  a gt    This is my Gradle code   apply plugin   com android application   android          compileSdkVersion 26       buildToolsVersion  25 0 2      defaultConfig       applicationId  com example noelly myapplication      minSdkVersion 19     targetSdkVersion 25     versionCode 1     versionName  1 0       buildTypes         release           minifyEnabled false         proguardFiles getDefaultProguardFile  proguard-android txt      proguard-rules pro       dependencies        compile fileTree dir   libs   include      jar         compile  com android support appcompat-v7 26 0 0

User · Answer

you forgot to add add alpha1 in module area

compile 'com.android.support:appcompat-v7:26.0.0-alpha1'

use maven repository in project area that's it

allprojects {
    repositories {
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}

User · Answer

1 - in build gradle  change my supportLibVersion to 26 0 0 2 - in app build gradle use   implementation  quot com android support appcompat v7   rootProject ext supportLibVersion  quot  3 - cd android 4 -   gradlew clean 5 -   gradlew assembleRelease

User · Answer

Please be noted  we need to add google maven to use support library starting from revision 25 4 0  As in the release note says      Important  The support libraries are now available through Google s   Maven repository  You do not need to download the support repository   from the SDK Manager  For more information  see Support Library Setup    Read more at Support Library Setup   Play services and Firebase dependencies since version 11 2 0 are also need google maven  Read Some Updates to Apps Using Google Play services and Google APIs Android August 2017 - version 11 2 0 Release note   So you need to add the google maven to your root build gradle like this   allprojects       repositories           jcenter           maven               url  https   maven google com                      For Gradle build tools plugin version 3 0 0  you can use google   repository  more at Migrate to Android Plugin for Gradle 3 0 0    allprojects       repositories           jcenter           google               UPDATE   From Google s Maven repository   The most recent versions of the following Android libraries are available from Google s Maven repository    Android Support Library Architecture Components Library Constraint Layout Library Android Test Support Library Databinding Library Android Instant App Library Google Play services Firebase   To add them to your build  you need to first include Google s Maven repository in your top-level   root build gradle file   allprojects       repositories           google               If you re using a version of Gradle lower than 4 1  you must instead use             maven                  url  https   maven google com                          An alternative URL is  https   dl google com dl android maven2             Then add the desired library to your module s dependencies block  For example  the appcompat library looks like this   dependencies       compile  com android support appcompat-v7 26 1 0      However  if you re trying to use an older version of the above libraries and your dependency fails  then it s not available in the Maven repository and you must instead get the library from the offline repository

User · Answer

change   compile  com android support appcompat-v7 26 0    to    compile  com android support appcompat-v7 26       worked for me fine

User · Answer

File -  Project Structure -  Modules  app  -  Open Dependencies Tab -  Remove all then use   to add from the proposed list

User · Answer

Go to SDK path  SDK extras android m2repository com android support appcompat-v7 to see correct dependency name  then change name if your dependency is alpha version   dependencies     compile fileTree dir   libs   include      jar      compile  com android support appcompat-v7 26 0 0      to    dependencies     compile fileTree dir   libs   include      jar      compile  com android support appcompat-v7 26 0 0-alpha1

User · Answer

Adding the below content in the main gradle has solved the problem for me   allprojects       repositories           jcenter           maven               url  https   maven google com                    flatDir               dirs  libs

User · Answer

If you already use jitpack io or any repository  You can add google repository like this   allprojects       repositories           maven   url  https   jitpack io            maven   url  https   maven google com

User · Answer

To use support libraries starting from version 26 0 0 you need to add Google s Maven repository to your project s build gradle file as described here  https   developer android com topic libraries support-library setup html  allprojects           repositories               jcenter               maven                   url  https   maven google com                                  For Android Studio 3 0 0 and above   allprojects           repositories               jcenter               google

User · Answer

If you are using Android Studio 3 0  add the Google maven repository as shown below   allprojects     repositories       jcenter       google

User · Answer

Add this in build gradle Project projectname   allprojects     repositories       jcenter       maven   url  https   maven google com           Add this in build gradle Module app   dependencies     compile  com android support appcompat-v7 26 1 0

User · Answer

Can you control internet access   If you dont have internet access  your ide doesnt download package then you encountered this problem

User · Answer

I was facing the same issue but I switched 26 0 0-beta1 dependencies to 26 1 0 and it s working now

User · Answer

My issue got resolved with the help of following steps   For gradle 3 0 0 and above version   add google   below jcenter   Change the compileSdkVersion to 26 and buildToolsVersion to 26 0 2 Change to gradle-4 2 1-all zip in the gradle wrapper properties file

[android] Failed to resolve: com.android.support:appcompat-v7:26.0.0

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