Failed to resolve libraries added inside Build.Gradle dependency

Question

I have only one Build.gradle file. My problem is that, when I'm trying to add new library for example gson inside dependency it fails

Failed to resolve: com.google.code.gson:gson:2.7

This is my Build.gradle file

apply plugin: 'com.android.application' buildscript { repositories { jcenter() mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:2.2.3' } } android { compileSdkVersion 19 buildToolsVersion "25.0.2" defaultConfig { applicationId "com.example" minSdkVersion 14 targetSdkVersion 19 versionCode 1 versionName "1" } sourceSets { main { manifest.srcFile 'AndroidManifest.xml' res.srcDirs = ['res'] assets.srcDirs = ['assets'] jniLibs.srcDir 'libs' } instrumentTest.setRoot('tests') debug.setRoot('build-types/debug') release.setRoot('build-types/release') } buildTypes { } } dependencies { compile fileTree(include: '*.jar', dir: 'libs') compile 'com.google.code.gson:gson:2.7' // compile 'com.squareup.retrofit2:retrofit:2.1.0' } task clean(type: Delete) { delete rootProject.buildDir }

latest GSON library on Maven is 2.8.0 so try compile group: 'com.google.code.gson', name: 'gson', version: '2.8.0' — dario.budimir
– dario.budimir, Commented Feb 16, 2017 at 10:59

Vampire · Accepted Answer · 2017-02-16 11:00:53Z

You didn't declare any repository (for the actual project). You just declared repositories for build-script dependencies. Those are dependencies the build-script itself needs to run like custom tasks, plugins etc.

Add a repositories block outside the buildscript block and define where to search for project dependencies in there.

Alvin Varghese · Accepted Answer · 2017-02-16 11:01:21Z

You can try with adding the jar files into the lib and adding it to the Gradle.

dependencies { compile files('libs/gson-x.x.x.jar') }

you can download the jar from this link

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