title: REACT NATIVE: Could not find method implementation() for arguments
body: <p>I am creating a project in React Native and trying to run it in Android but I am facing some issues while deploying it in Android</p>
  
  <blockquote>
    <p>Could not find method implementation() for arguments [com.facebook.react:react-native:0.20.1] on project ':react-native-camera'.</p>
  </blockquote>
  
  <p>This is the error message which I got in the logcat</p>
  
  <pre><code>buildscript {
  repositories {
  jcenter()
  maven {
    url 'https://maven.google.com'
  }
  }
  dependencies {
  classpath 'com.android.tools.build:gradle:3.1.3'
  }
  }
  
  apply plugin: 'com.android.library'
  
  def DEFAULT_COMPILE_SDK_VERSION             = 26
  def DEFAULT_BUILD_TOOLS_VERSION             = "26.0.2"
  def DEFAULT_TARGET_SDK_VERSION              = 26
  def DEFAULT_SUPPORT_LIBRARY_VERSION         = "27.1.0"
  
  android {
    compileSdkVersion rootProject.hasProperty('compileSdkVersion') ? 
    rootProject.compileSdkVersion : DEFAULT_COMPILE_SDK_VERSION
    buildToolsVersion rootProject.hasProperty('buildToolsVersion') ? 
    rootProject.buildToolsVersion : DEFAULT_BUILD_TOOLS_VERSION
  
    defaultConfig {
     minSdkVersion 16
     targetSdkVersion rootProject.hasProperty('targetSdkVersion') ? rootProject.targetSdkVersion : DEFAULT_TARGET_SDK_VERSION
  
  versionCode 1
  versionName "1.0.0"
  }
  lintOptions {
  abortOnError false
  warning 'InvalidPackage'
  }
  
  
   buildToolsVersion '27.0.3'
  }
  
  repositories {
    mavenCentral()
    maven {
    url 'https://maven.google.com'
    }
    maven { url "https://jitpack.io" }
    maven {
    // All of React Native (JS, Obj-C sources, Android binaries) is 
    installed from npm
     url "$rootDir/../node_modules/react-native/android"
   }
  }
  
  dependencies {
   def supportLibVersion = rootProject.hasProperty('supportLibVersion')  ? rootProject.supportLibVersion : DEFAULT_SUPPORT_LIBRARY_VERSION
  
   implementation 'com.facebook.react:react-native:0.20.1'
   implementation 'com.facebook.infer.annotation:infer-annotation:0.11.2'
   implementation "com.google.zxing:core:3.2.1"
   implementation "com.drewnoakes:metadata-extractor:2.9.1"
   implementation "com.google.android.gms:play-services-vision:15.0.2"
   implementation "com.android.support:exifinterface:27.1.1"
   implementation "com.android.support:support-annotations:$supportLibVersion"
    implementation "com.android.support:support-v4:27.1.1"
  }
  </code></pre>
  
  <p>If anyone have the solution please tell me. Thanks in Advance</p>