Failed to resolve: com.android.databinding:library:3.1.2

Question

After updating android studio 3.1.2 my existing project gives error at

dataBinding.enabled = true

error is as follows-

Failed to resolve: com.android.databinding:library:3.1.2
Failed to resolve: com.android.databinding:adapters:3.1.2

my gradle dependency are as follows-

dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:25.1.0'

implementation 'com.android.support:recyclerview-v7:25.1.0'
implementation 'com.android.support:preference-v7:25.1.0'

implementation 'com.android.support.constraint:constraint-layout:1.0.0-beta3'

implementation 'com.firebase:firebase-jobdispatcher:0.5.0'

// Instrumentation dependencies use androidTestCompile
// (as opposed to testCompile for local unit tests run in the JVM)
androidTestImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support:support-annotations:25.1.0'
androidTestImplementation 'com.android.support.test:runner:0.5'
androidTestImplementation 'com.android.support.test:rules:0.5'

}

I also tried

android.databinding.enableV2=true

but its also not working

When I tried to update build tool version to 4.4 then I found this error. I f I do not update the build tool version then its working fine.

Answer 1

check it this below code in your project level gradle file ..

buildscript {

    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.0'

        // 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
}

Answer 2

According to the Android Team answer you had to add

google() too all repositories

and priority is important. so other repositories must be added after google()

Answer 3

Downgrade to 3.1.0 in project level build.gradle file, then rebuild the project.

dependencies {
    classpath 'com.android.tools.build:gradle:3.1.0'


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

I hope this helps