Android Studio: Failed to find: 'com.android.support:support-v4:19.1.0'

Question

I want to build an app in Android Studio with the support library but I get the following error when adding the dependency for the support library:

Error:Failed to find: com.android.support:support-v4:19.1.0 

Here is my build.gradle file

apply plugin: 'com.android.application'  android {     compileSdkVersion 19     buildToolsVersion '20'      defaultConfig {         applicationId "sample.myapplication"         minSdkVersion 15         targetSdkVersion 19         versionCode 1         versionName "1.0"     }     buildTypes {          release {             runProguard false             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'         }     } }  dependencies {     compile fileTree(dir: 'libs', include: ['*.jar'])     compile 'com.android.support:support-v4:19.1.0'  } 

I have downloaded the support library via the sdk manager.

Answer 1

Ok, found the problem. The Android support repository was missing. After installing and restarting Android Studio it worked.

Answer 2

If you are using Android Studio, then as an addition to changing the build.gradle file manually, you can also lookup the dependency via the library dependencies under the Project Structure menu item.

Double clicking that dependency will generate this line in build.gradle:

dependencies {     compile 'com.android.support:support-v13:+' } 

And also, if you are wondering what this library is about, it's described at the developer pages at developer.android.com; Support Library.