您好！调用摄像头遇到了崩溃问题，请问这个应该怎么解决？

FATAL EXCEPTION: VideoCaptureCamera2_CameraThread Process: com.just.agentweb.sample, PID: 16046 java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.Rect.width()' on a null object reference at Nd.run(PG:74) at android.os.Handler.handleCallback(Handler.java:808) at android.os.Handler.dispatchMessage(Handler.java:101) at android.os.Looper.loop(Looper.java:166) at android.os.HandlerThread.run(HandlerThread.java:65)