Crash of application if emojiBitmap is null at this line

[mgillieron]

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https://github.com/udacity/AdvancedAndroid_Emojify/blob/d681cc8cd08820b8f6b662b44dcb2cdbdfd19377/app/src/main/java/com/example/android/emojify/Emojifier.java#L115

Before to call addBitmapToFace method, verify if emojiBitmap variable is not null.

[JOSELUISRO5597]

I got the same problem with my BQ Aquaris V plus :S