Could not resolve com.android.support:appcompat-v7:26.1.0 in Android Studio new project

Question

I know about this questions:

Failed to resolve: com.android.support:cardview-v7:26.0.0 android

Could not resolve com.android.support:appcompat-v7:26.1.0 [duplicate]

And I've read this documentations:

Migrate to Android Plugin for Gradle 3.0.0

Migrating to Android 8.0

So I'm posting this question believing its not a duplicate.

I've installed Android Studio 3.0.1. I didn't have any previous version before and I started a new project.

Every setting in Gradle file have been set by Android Studio itself and I've checked them all.

These are the file contents:

build.gradle (Module:app)

    apply plugin: 'com.android.application'

    android {
        compileSdkVersion 26
        defaultConfig {
            applicationId "com.example.administrator.as301test"
            minSdkVersion 16
            targetSdkVersion 26
            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(dir: 'libs', include: ['*.jar'])
        implementation 'com.android.support:appcompat-v7:26.1.0'
        implementation 'com.android.support.constraint:constraint-layout:1.0.2'
        implementation 'com.android.support:design:26.1.0'
        testImplementation 'junit:junit:4.12'
        androidTestImplementation 'com.android.support.test:runner:1.0.1'
        androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    }

Top level build.gradle

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'


        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

gradle-wrapper.properties

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

I use google() in repositories as here clearly says:

  // If you're using a version of Gradle lower than 4.1, you must instead use:
     // maven {
     //     url 'https://maven.google.com'
     // }

My gradle version is 4.1 so I don't need above code.

But I still get this error as the others have been asking about:

Error:Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0.

Why should I get this error when I'm creating a new project in AS 3.0.1 and it has been set all the necessary settings?

Update

@Rohit's answer somehow solved the issue but I still get same error for some other dependencies.

Could not resolve com.android.support.test:runner:1.0.1

Could not resolve com.android.support.test.espresso:espresso-core:3.0.1

Could not resolve junit:junit:4.12

@VivekMishra Tried as you suggested. failed with same error. — Ghasem, Nov 23 '17 at 06:02
Uncheck `Offline work` option in File->Settings->Build, Execution, Deployment->Gradle — Nazmul Haque, Nov 23 '17 at 06:20
Try setting https proxy as mentioned here: https://stackoverflow.com/a/47223907/1756069 Most probably, it will work for you. — garnet, Dec 01 '17 at 14:12
So, it might have worked for you. Please confirm. I also got the same problem which you mentioned with AS 3.0.1. But, after specifying https proxy, it worked. — garnet, Dec 03 '17 at 11:10
@garnet Google does not offer support in my country, and I'm always using https proxy. So no it didn't work. I fixed the problem and I will post my solution soon — Ghasem, Dec 04 '17 at 04:33
@AlexJolig try removing `androidTestImplementation 'com.android.support.test:runner:1.0.1`. It's giving no errors during the build. — Neeraj Sewani, May 31 '18 at 20:33
Adding the following solved my issue `buildToolsVersion "26.0.2" ` — Binil Jacob, Jun 09 '18 at 19:23

Ghasem · Accepted Answer · 2018-01-20T04:17:59.440

Finally I fixed the problem by modifying build.gradle like this:

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.2"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 26
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:design:26.1.0'
}

I've removed these lines as these will produce more errors:

testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'

Also I had same problem with migrating an existing project from 2.3 to 3.0.1 and with modifying the project gradle files like this, I came up with a working solution:

build.gradle (module app)

android {
    compileSdkVersion 27
    buildToolsVersion "27.0.1"

    defaultConfig {
        applicationId "com.mobaleghan.tablighcalendar"
        minSdkVersion 16
        targetSdkVersion 27
    }

dependencies {
    implementation 'com.android.support:appcompat-v7:25.1.0'
    implementation 'com.android.support:design:25.1.0'
    implementation 'com.android.support:preference-v7:25.1.0'
    implementation 'com.android.support:recyclerview-v7:25.1.0'
    implementation 'com.android.support:support-annotations:25.1.0'
    implementation 'com.android.support:support-v4:25.1.0'
    implementation 'com.android.support:cardview-v7:25.1.0'
    implementation 'com.google.android.apps.dashclock:dashclock-api:2.0.0'
}

Top level build.gradle

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

Is that space in your `build.gradle` file in between `constraint` and `layout` intentional? — Rob Rose, Jan 20 '18 at 01:32
@lololololol You must include `BuildToolsVersion`. the version depends on which one works for you — Ghasem, Mar 13 '18 at 18:24
Could not find method google() for arguments [] on repository container. I am getting this error. — mangatinanda, Mar 24 '18 at 20:02
@mangatinanda Are you sure you're using AS 3 and gradle version 3 ? — Ghasem, Mar 27 '18 at 09:22
i build everyday in my ionic app ... after a month ... last night i cant build ... but i cant remember when i changed this configuration ... this is forth time that it changed by third party app or when i run ionic cordova build android or maybe when add new plugin... so i dont know when and how its changed and — saber tabatabaee yazdi, Oct 25 '19 at 15:46

Harsh · Answer 2 · 2018-10-08T04:24:53.430

goto Android->sdk->build-tools directory make sure you have all the versions required . if not , download them . after that goto File-->Settigs-->Build,Execution,Depoyment-->Gradle

choose use default gradle wapper (recommended)

and untick Offline work

gradle build finishes successfully for once you can change the settings

If it dosent simply solve the problem

check this link to find an appropriate support library revision

https://developer.android.com/topic/libraries/support-library/revisions

Make sure that the compile sdk and target version same as the support library version. It is recommended maintain network connection atleast for the first time build (Remember to rebuild your project after doing this)

score 8 · Answer 3 · edited Nov 23 '17 at 07:18

8

try this :

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"
defaultConfig {

        targetSdkVersion 26
    }

}


compile 'com.android.support:appcompat-v7:25.1.0'

It has worked for me

edited Nov 23 '17 at 07:18

Ghasem

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answered Nov 23 '17 at 07:17

ROHIT LIEN

497
3
8

I'm not sure, but I guess this somehow worked for some errors. Any suggestion for `Could not resolve com.android.support.test:runner:1.0.1`? – Ghasem Nov 23 '17 at 08:19
1

This makes sense as 26.1.0 is not released yet as per https://developer.android.com/studio/releases/build-tools.html. It seems to be a bug in AS 3.0.1 – garnet Dec 01 '17 at 14:01
@AlexJolig , com.android.support.test:runner:1.0.0 or other versions – ROHIT LIEN Nov 21 '19 at 08:11

score 5 · Answer 4 · answered Dec 28 '17 at 10:49

5

I tried all of the above and nothing worked for me.

Then I followed Gradle Settings > Build Execution, Deployment > Gradle > Android Studio and checked "Disable embedded Maven repository".

Did a build with this checked and the problem was solved.

answered Dec 28 '17 at 10:49

Fyko

57
3

Wow, this did it for me too. Does anyone know why this is happening? It seems to take longer to build now... I was also using Kotlin in case that helps anyone else. – Rob Rose Jan 20 '18 at 01:33

score 3 · Answer 5 · answered Feb 18 '18 at 03:49

3

Just go to File\Settings\Gradle. Deselect the "Offline work" box. Now you can connect and download any necessary or missing dependencies

answered Feb 18 '18 at 03:49

Clement Olaniyan

333
2
11

score 2 · Answer 6 · answered Nov 23 '17 at 06:12

2

Your android studio may be forgot to put : buildToolsVersion "26.0.0" you need 'buildTools' to develop related design and java file. And if there is no any buildTools are installed in Android->sdk->build-tools directory then download first.

answered Nov 23 '17 at 06:12

Jayesh Rathod

600
1
5
18

Add buildToolsVersion "26.0.0" after compileSdkVersion in gradle(Module) file. – Jayesh Rathod Nov 23 '17 at 06:13
Adding `buildToolsVersion "26.0.2"` under `compileSdkVersion 26`, did not help. I still get the same error. – Ghasem Nov 23 '17 at 06:15
Then check your Android->sdk->build-tools directory which contains build tools versions you have installed. – Jayesh Rathod Nov 23 '17 at 06:22
I got `27.0.1`, `26.0.2` and `25.0.2` versions, installed – Ghasem Nov 23 '17 at 06:24
OK. Add compile in the place of implementation and testCompile in the place of testImplementation and use androidTestCompile in the place of androidTestImplementation. – Jayesh Rathod Nov 23 '17 at 07:11
why my android studio missing add buildToolsVersion? – Sahan Pasindu Nirmal Mar 21 '18 at 14:07

score 2 · Answer 7 · answered Apr 06 '18 at 15:52

2

well got this answer from another site and don't want to take any credit for this but this solution works like butter.

Go to File\Settings\Gradle. Deselect the "Offline work" box. Now you can connect and download any necessary or missing dependencies.

answered Apr 06 '18 at 15:52

Aditya Tandon

650
1
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What's the value-add over https://stackoverflow.com/a/48848256/101361 already posted here? Your answer part is a verbatim copy of it – laalto Apr 06 '18 at 16:00
1

ok well i didn't see that one and i got this from another site and thats why i said i got this answer from another site and not taking any credit for this. plus if someone came to this link and not that one then he will be seeing his solution right here. he doesn't have to search anymore or anywhere. – Aditya Tandon Apr 10 '18 at 08:23

score 2 · Answer 8 · answered Jul 12 '18 at 09:50

2

This work for me. In the android\app\build.gradle file you need to specify the following

compileSdkVersion 26
buildToolsVersion "26.0.1"

and then find this

compile "com.android.support:appcompat-v7"

and make sure it says

compile "com.android.support:appcompat-v7:26.0.1"

answered Jul 12 '18 at 09:50

Janaka Pushpakumara

4,769
5
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Excelente amigo muchas gracias me sirvio – Bruno Sosa Fast Tag May 16 '19 at 13:38

Meisam · Answer 9 · 2018-07-16T15:48:18.947

2

OK It's A Wrong Approach But If You Use it Like This :

compile "com.android.support:appcompat-v7:+"

Android Studio Will Use The Last Version It Has.

In My Case Was 26.0.0alpha-1.

You Can See The Used Version In External Libraries (In The Project View).

I Tried Everything But Couldn't Use Anything Above 26.0.0alpha-1, It Seems My IP Is Blocked By Google. Any Idea? Comment

edited Jul 16 '18 at 15:48

answered Jul 15 '18 at 09:31

Meisam

358
5
14

score 1 · Answer 10 · answered Jul 16 '18 at 19:51

1

In my case, this error occur when i tried to use gridView

I resolved it by removing this line from build.grade(Module) file

implementation 'com.android.support:gridlayout-v7:28.0.0-alpha3'

answered Jul 16 '18 at 19:51

Asim

161
1
12

score 0 · Answer 11 · answered Nov 30 '17 at 01:53

This issue seems to like the following.

How to resolve repository certificate error in Gradle build

Below steps may help:

1. Add certificate to keystore-

Import some certifications into Android Studio JDK cacerts from Android Studio’s cacerts.

Android Studio’s cacerts may be located in

{your-home-directory}/.AndroidStudio3.0/system/tasks/cacerts

I used the following import command.

$ keytool -importkeystore -v -srckeystore {src cacerts} -destkeystore {dest cacerts}

2. Add modified cacert path to gradle.properties-

systemProp.javax.net.ssl.trustStore={your-android-studio-directory}\\jre\\jre\\lib\\security\\cacerts
systemProp.javax.net.ssl.trustStorePassword=changeit

Ref : https://www.cresco.co.jp/blog/entry/2014//

score 0 · Answer 12 · answered Aug 21 '18 at 07:56

0

Try to clear cache in android studio by File-> Invalidate cache -> invalidate after invalidating build-> clean project Then you can able to build the project

answered Aug 21 '18 at 07:56

Aravindrajan Sampathkumar

23
1
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score 0 · Answer 13 · edited May 11 '19 at 08:22

0

this work for me

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

change 26.0.0 to 26.0.1

compile 'com.android.support:appcompat-v7:26.0.1'

edited May 11 '19 at 08:22

Ghasem

14,455
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answered May 11 '19 at 07:26

DILSHAD AHMAD

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score 0 · Answer 14 · answered Sep 29 '20 at 06:43

0

this work for me. add configurations.all in app/build.gradle

android {
    configurations.all {
        resolutionStrategy.force 'com.android.support:support-annotations:27.1.1'
    }
}

answered Sep 29 '20 at 06:43

Zhentao

11

Could not resolve com.android.support:appcompat-v7:26.1.0 in Android Studio new project

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