java.lang.NullPointerException

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    • java.lang.NullPointerException: Attempt to invoke virtual method 'int android.hardware.camera2.CameraCaptureSession.capture(android.hardware.camera2.CaptureRequest, android.hardware.camera2.CameraCaptureSession$CaptureCallback, android.os.Handler)' on a null object reference at com.tzutalin.vision.demo.Camera2BasicFragment.lockFocus(Camera2BasicFragment.java:705) at com.tzutalin.vision.demo.Camera2BasicFragment.objDetect(Camera2BasicFragment.java:693) at com.tzutalin.vision.demo.Camera2BasicFragment.onClick(Camera2BasicFragment.java:817) at android.view.View.performClick(View.java:5204) at android.view.View$PerformClick.run(View.java:21155) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5422) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
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