Retrofit

[tusharuit25]

java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:321)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:246)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lretrofit2/Retrofit$Builder;
at com.kevalpatel2106.gifpack.giphy.GiphyGifProvider.getTrendingGifs(GiphyGifProvider.java:112)
at com.kevalpatel2106.emoticongifkeyboard.internal.gif.GifFragment$TrendingGifTask.doInBackground(GifFragment.java:215)
at com.kevalpatel2106.emoticongifkeyboard.internal.gif.GifFragment$TrendingGifTask.doInBackground(GifFragment.java:201)
at android.os.AsyncTask$2.call(AsyncTask.java:307)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:246) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
at java.lang.Thread.run(Thread.java:833) 

[WebShaper]

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