Error received: "Detector processor must first be set with setProcessor in order to receive detection results."

[albert0m]

I imported your example on my project (beside the fact that few methods from the example are not available in the latest version from gradle), and the logs are spammed with this error:

E/OpenCameraSource: Exception thrown from receiver.
java.lang.IllegalStateException: Detector processor must first be set with setProcessor in order to receive detection results.
at com.google.android.gms.vision.Detector.receiveFrame(Unknown Source)
at com.google.android.gms.samples.vision.barcodereader.ui.camera.CameraSource$FrameProcessingRunnable.run(CameraSource.java:1222)
at java.lang.Thread.run(Thread.java:762)
E/OpenCameraSource: Exception thrown from receiver.
java.lang.IllegalStateException: Detector processor must first be set with setProcessor in order to receive detection results.
at com.google.android.gms.vision.Detector.receiveFrame(Unknown Source)
at com.google.android.gms.samples.vision.barcodereader.ui.camera.CameraSource$FrameProcessingRunnable.run(CameraSource.java:1222)
at java.lang.Thread.run(Thread.java:762)
E/OpenCameraSource: Exception thrown from receiver.
java.lang.IllegalStateException: Detector processor must first be set with setProcessor in order to receive detection results.
at com.google.android.gms.vision.Detector.receiveFrame(Unknown Source)
at com.google.android.gms.samples.vision.barcodereader.ui.camera.CameraSource$FrameProcessingRunnable.run(CameraSource.java:1222)
at java.lang.Thread.run(Thread.java:762)