title: React-native : Unable to use react-native-fast-image
body: <p>My apps app/build gradle:</p>
  
  <blockquote>
  <pre><code>android:compileSdkVersion 23,  buildToolsVersion '26'
  </code></pre>
  </blockquote>
  
  <p>android/build gradle:</p>
  
  <pre><code>subprojects { subproject -&gt;
      afterEvaluate{
          if((subproject.plugins.hasPlugin('android') || subproject.plugins.hasPlugin('android-library'))) {
              android {
                  compileSdkVersion 25
                  buildToolsVersion "25.0.1"
              }
          }
      }
  }
  </code></pre>
  
  <p>package json dependencies: </p>
  
  <blockquote>
    <p>"react-native-fast-image": "^1.0.0",
     "react": "16.0.0-alpha.12",
    "react-native": "0.45.1",</p>
  </blockquote>
  
  <p>I have installed react-native-fast-image, and linked with react-native.
  Then while running on android , I am getting this error:</p>
  
  <pre><code>:react-native-fast-image:compileReleaseJavaWithJavac - is not incremental (e.g. outputs have changed, no previous execution, etc.).
  D:\React Practice\MyProject\MyProject\node_modules\react-native-fast-image\android\src\main\java\com\dylanvann\fastimage\FastImageViewPackage.java:14: error: FastImageViewPackage is not abstract and does not override abstract method createJSModules() in ReactPackage
  public class FastImageViewPackage implements ReactPackage {
         ^
  Note: D:\React Practice\MyProject\MyProject\node_modules\react-native-fast-image\android\src\main\java\com\dylanvann\fastimage\FastImageViewManager.java uses unchecked or un
  safe operations.
  Note: Recompile with -Xlint:unchecked for details.
  1 error
  :react-native-fast-image:compileReleaseJavaWithJavac FAILED
  </code></pre>