Couldn't locate lint-gradle-api-26.1.2.jar for Flutter project

Question

I'm new to Flutter and trying to run the example project when you create a new one. When trying to run it, I have this issue:

FAILURE: Build failed with an exception.

Where: Build file 'PROJECTPATH/android/app/build.gradle' line: 25
What went wrong: A problem occurred evaluating project ':app'.

Could not resolve all files for configuration 'classpath'. Could not find lint-gradle-api.jar (com.android.tools.lint:lint-gradle-api:26.1.2). Searched in the following locations: https://jcenter.bintray.com/com/android/tools/lint/lint-gradle-api/26.1.2/lint-gradle-api-26.1.2.jar

I understand it's trying to get the file "lint-gradle-api-26.1.2.jar" from the jcenter repository but when following the link I get this:

{
  "errors" : [ {
    "status" : 404,
    "message" : "Could not find resource"
  } ]
}

So I added the Google repository in my build.gradle file:

buildscript {
    repositories {
        maven { url 'https://dl.google.com/' }
        google()
        jcenter()
    }

...and I also succeed to get the file by following this link:

https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle-api/26.1.2/lint-gradle-api-26.1.2.jar

...but I'm still getting the same error when trying to run my project, whether it is by using Visual Studio Code, Android Studio or with the CLI.

How do I force Gradle to download the file from the link I've found?

Here's how my build.gradle file looks like:

buildscript {
    repositories {
        //maven { url 'https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle-api/26.1.2/lint-gradle-api-26.1.2.jar' }
        repositories {
            google()
            maven { url 'https://maven.fabric.io/public' }
            mavenCentral()
            jcenter()
        }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
    }
}

allprojects {
    repositories {
        google()
        maven { url 'https://maven.fabric.io/public' }
        mavenCentral()
        jcenter()
    }
}

repositories {
    google()
    maven { url 'https://maven.fabric.io/public' }
    mavenCentral()
    jcenter()
}

....

Maybe this will help: https://stackoverflow.com/a/52944600/4255978 — HedeH, Oct 23 '18 at 08:59
For people coming here now, I think this has been fixed in master, so `flutter channel master` and `flutter upgrade` should sove it. — absin, Nov 05 '18 at 05:47

score 133 · Accepted Answer · edited Nov 17 '18 at 09:49

133

I solved the problem by moving:

maven {
    url 'https://dl.google.com/dl/android/maven2'
}

in the top of:

jcenter()

in the file: .flutter/packages/flutter_tools/gradle/flutter.gradle:

    buildscript {
    repositories {
        maven {
            url 'https://dl.google.com/dl/android/maven2'
        }
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
    }
}

edited Nov 17 '18 at 09:49

Peter Mortensen

30,738
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answered Oct 23 '18 at 10:42

palmtreesnative

2,835
3
14
22

1

Thank you loads @Quentin. You saved me after 3 hours of trying various things. Gradle error seems like some dependency issue with a missing package. – Gayan Pathirage Oct 25 '18 at 17:28
1

Saved me. I was facing the same issue – Gaurav Sharma Oct 25 '18 at 18:15
Saved as well. Thanks a bunch – Carles Oct 27 '18 at 17:43
10

By the way, `.flutter` is `C:\flutter` on Windows (or the location of Flutter installation). It's not linked to a project. – Kevin Robatel Oct 29 '18 at 19:47
did not see this working but definitely worked for me – martinseal1987 Nov 06 '18 at 10:11
I am struggling with this for a week and it didn't work for me, any ideas? and I have to mention that I am using a VPN because I live in a country blocked by google – mohammad.pro May 14 '20 at 07:53
but if I click on the URL it downloads the file in the browser so actually I have the access, Can I use these files and where should I but them – mohammad.pro May 14 '20 at 07:59

score 44 · Answer 2 · edited Nov 19 '18 at 17:57

44

Modify flutter.gradle under ./flutter/packages/flutter_tools/gradle to upgrade the tools version to 3.2.1 and add google() to the first line:

buildscript {
  repositories {
    google()
    jcenter()
    maven {
      url 'https://dl.google.com/dl/android/maven'
    }
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:3.2.1'
  }
}

Screenshot of my code

edited Nov 19 '18 at 17:57

Federico Grandi

6,785
5
30
50

answered Oct 23 '18 at 10:01

mano233

441
4
2

Upgrade your flutter， This is my environmental information and I am working now. [√] Flutter (Channel beta, v0.9.4, on Microsoft Windows [Version 10.0.17763.104], locale zh-CN) [√] Android toolchain - develop for Android devices (Android SDK 28.0.3) [√] Android Studio (version 3.2) [√] Connected device (1 available) – mano233 Oct 23 '18 at 10:17
2

Upgrade distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip – mano233 Oct 23 '18 at 10:21

score 21 · Answer 3 · edited Nov 25 '18 at 13:03

21

Regarding this error, I just changed this line in the build.gradle file:

classpath 'com.android.tools.build:gradle:3.1.2'

to:

classpath 'com.android.tools.build:gradle:3.1.3'

And that solved my problem.

edited Nov 25 '18 at 13:03

Peter Mortensen

30,738
21
105
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answered Nov 12 '18 at 12:12

Alfredo Zamudio

408
3
12

It is strange, but downgrading the gradle from 3.1.2 to 3.0.1(in my case) helped me. – AloDev Nov 12 '18 at 13:00

score 16 · Answer 4 · edited Nov 17 '18 at 09:51

This is just a bug in the Gradle file located at C:\flutter\packages\flutter_tools\gradle\flutter.gradle at line 25.

All you have to do is just edit this file by moving it to the top:

maven {
    url 'https://dl.google.com/dl/android/maven2'
}

Change from this

buildscript {
    repositories {

        jcenter()
        maven {
            url 'https://dl.google.com/dl/android/maven2'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
    }
}

to this:

buildscript {
    repositories {
        maven {
            url 'https://dl.google.com/dl/android/maven2'
        }
        jcenter()
    }
    dependencies {`enter code here`
        classpath 'com.android.tools.build:gradle:3.1.2'
    }
}

score 7 · Answer 5 · edited Nov 17 '18 at 09:54

7

This is related to Flutter 0.9.4 at the moment. It will be fixed in the next release. In the meantime, you can update Flutter manually by running the commands described in "Flutter Upgrade". Basically they involve the following:

Change the Flutter GitHub channel to master by running on the command prompt:
```
flutter channel master
```
Upgrade Flutter itself by running
```
flutter upgrade
```

Once the upgrade is done, run the test drive application, and it should compile successfully.

edited Nov 17 '18 at 09:54

Peter Mortensen

30,738
21
105
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answered Nov 01 '18 at 05:33

user3399299

569
1
4
4

You don't actually need to update the project dependencies repositories, so this answer is the one! :-D – cesards Nov 03 '18 at 17:43

score 4 · Answer 6 · edited Nov 25 '18 at 13:02

4

Solution:

Put
maven {
    url 'https://dl.google.com/dl/android/maven2'
}
at the top of:
jcenter()

in the file: .flutter/packages/flutter_tools/gradle/flutter.gradle : The file is in the Flutter SDK.

edited Nov 25 '18 at 13:02

Peter Mortensen

30,738
21
105
131

answered Nov 05 '18 at 19:37

Aegon

125
1
4

HII Aegon. I didn't find any flutter SDK. Where to find it. I have the same error? – vijju Nov 12 '18 at 06:55
You have to download the SDK first, here is a doc explains installation. https://flutter.io/docs/get-started/install – Aegon Nov 12 '18 at 11:22

Muahmmad Tayyib · Answer 7 · 2020-07-09T06:42:08.237

3

this fixed my issue,SO reference here:

In your root build.gradle make sure google() is before jcenter().

repositories {
    google()
    jcenter()
}

In most projects you will have to update this at 2 spots.

buildscript {
    repositories {
        google()
        jcenter()
    }

}

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

edited Jul 09 '20 at 06:42

answered Dec 04 '18 at 18:05

Muahmmad Tayyib

689
11
28

score 2 · Answer 8 · edited Nov 17 '18 at 09:52

2

All the previous answers resolve the problem. One comment to add is the location of the flutte.gradle.

You will find it in the directory that you installed Flutter in for the first time and not on the Flutter project.

edited Nov 17 '18 at 09:52

Peter Mortensen

30,738
21
105
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answered Oct 31 '18 at 15:03

Mohamed Dernoun

776
5
13

score 2 · Answer 9 · edited Nov 25 '18 at 13:01

2

Flutter Master Upgrade

I just had this problem. The fix for me however was a lot simpler. After switching branches to dev and upgrading, I switched back to master and it worked perfectly fine.

flutter checkout dev
flutter upgrade

Then switch back

flutter checkout master
flutter upgrade
flutter run

edited Nov 25 '18 at 13:01

Peter Mortensen

30,738
21
105
131

answered Nov 04 '18 at 04:19

tdmiller

2,102
2
13
28

score 2 · Answer 10 · edited Nov 25 '18 at 13:02

2

Just try to upgrade Flutter using the following:

flutter upgrade

(This issue has been fixed in the latest update.)

edited Nov 25 '18 at 13:02

Peter Mortensen

30,738
21
105
131

answered Nov 08 '18 at 17:56

Niyas Ali

203
2
9

score 1 · Answer 11 · edited Nov 25 '18 at 12:59

I also newbie in flutter and just installed it today. And I found the same problem as you, but after three hours googling I finally solved it.

The steps I have done are as follows:

Copy "flutter.gradle" file from "https://github.com/flutter/flutter/blob/master/packages/flutter_tools/gradle/flutter.gradle" into "C:\flutter\packages\gradle"

Then modify the content, for this part:

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
    }
}

to:

buildscript {
    repositories {
        maven {
                url 'https://dl.google.com/dl/android/maven2'
        }
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
    }
}

In "c:\flutter\bin", run this command:
```
flutter channel master
```
Wait until finished, and then run this command:
```
flutter upgrade
```
Wait until it finished, then re-run the project to debug,
and finally the application appeared on the emulator screen.

Picture finally running

score 1 · Answer 12 · edited Nov 25 '18 at 13:04

1

For me, opening the gradle-wrapper.properties file and editing the below line like this version solved it:

distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip

edited Nov 25 '18 at 13:04

Peter Mortensen

30,738
21
105
131

answered Nov 25 '18 at 06:14

kogorou

321
3
5

score 1 · Answer 13 · answered Feb 08 '19 at 07:15

When I encountered this error Flutter 1.0 had been released. The previous issues were fixed and still I was getting the same error.

The following steps fixed it for me :

1) Changing Gradle plugin version from 3.1.2 to 3.2.1 in your_project/android/build.gradle inside 'dependencies' section -

dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
    }

2) Changing Gradle wrapper version from 4.4 to 4.6 in your_project/android/gradle/wrapper/gradle-wrapper.properties like so

distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip

Actually, changing Gradle plugin version from "3.2.1" to "3.1.2" worked for me! What's going on here? — Shamshun, May 14 '19 at 06:49

score 1 · Answer 14 · answered Apr 10 '19 at 15:12

1

I have fix just by replacing these sentences:

allprojects {
    repositories {
        mavenCentral()
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'

        }
    }
}

instead of these:

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

in build.gradle file and then replace compile with implementation in dependencies

answered Apr 10 '19 at 15:12

Mohsen Hrt

263
2
9

1

Thank you . so much . . – Sajjad Dec 06 '21 at 04:45

score 0 · Answer 15 · answered Mar 18 '19 at 03:30

0

I have fix it with update version build.gradle

dependencies {
        classpath 'com.android.tools.build:gradle:3.3.2'
        ..............
}

answered Mar 18 '19 at 03:30

Triệu Đô La

2,471
1
9
6

Couldn't locate lint-gradle-api-26.1.2.jar for Flutter project

15 Answers15

Flutter Master Upgrade

Linked

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