java.lang.NullPointerException

[shahzad1]

at com.github.florent37.camerafragment.internal.manager.impl.Camera1Manager.b (Camera1Manager.java:2)
at com.github.florent37.camerafragment.internal.manager.impl.Camera1Manager.b (Camera1Manager.java:9)
at com.github.florent37.camerafragment.internal.controller.impl.Camera1Controller.switchCamera (Camera1Controller.java:2)
at com.github.florent37.camerafragment.internal.ui.BaseAnncaFragment.setCameraPreview (BaseAnncaFragment.java:2)
at com.github.florent37.camerafragment.internal.ui.BaseAnncaFragment$3.updateCameraPreview (BaseAnncaFragment.java:2)
at com.github.florent37.camerafragment.internal.controller.impl.Camera1Controller.onCameraOpened (Camera1Controller.java:4)
at com.github.florent37.camerafragment.internal.controller.impl.Camera1Controller.onCameraOpened (Camera1Controller.java:4)
at com.github.florent37.camerafragment.internal.manager.impl.Camera1Manager$1$1.run (Camera1Manager.java:15)
at android.os.Handler.handleCallback (Handler.java:873)
at android.os.Handler.dispatchMessage (Handler.java:99)
at android.os.Looper.loop (Looper.java:193)
at android.app.ActivityThread.main (ActivityThread.java:6923)
at java.lang.reflect.Method.invoke (Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:870)