Below is code from my build.gradle file.

```
apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "23.0.0 rc3"

    defaultConfig {
        applicationId "com.example.test"
        minSdkVersion 14
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

repositories {
   mavenCentral()
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:22.2.1'
    compile 'com.facebook.android:facebook-android-sdk:4.4.0'
}

```

When I do Sync project with gradle files, it gives me error.

```
  Error:(28, 13) Failed to resolve: com.facebook.android:facebook-android-sdk:4.4.0

```

Can anyone tell me why I'm getting this error?

Similar question has been asked here but no one has answered it. (
[Failed to resolve: com.facebook.android:facebook-android-sdk:4.0.0](https://stackoverflow.com/questions/29363054/failed-to-resolve-com-facebook-androidfacebook-android-sdk4-0-0) )