Hello. Using a imported Unity Project (2017.2.0f3) which uses Vuforia, We are getting the following error:

    Caused by java.lang.IllegalStateException: Image is already closed

       at android.media.Image.throwISEIfImageIsInvalid(Image.java:68)

       at android.media.ImageReader$SurfaceImage.getTimestamp(ImageReader.java:750)

       at com.vuforia.ar.pl.Camera2_Preview$OnCameraDataAvailable.onImageAvailable(Camera2_Preview.java:326)

       at android.media.ImageReader$ListenerHandler.handleMessage(ImageReader.java:687)

       at android.os.Handler.dispatchMessage(Handler.java:102)

       at android.os.Looper.loop(Looper.java:154)

       at android.os.HandlerThread.run(HandlerThread.java:61)

The details of the device are the following: 

    Fatal Exception: java.lang.Error: FATAL EXCEPTION [0_camera_thread

    Unity version     : 2017.2.0f3 

    Device model      : LGE LM-X210(G)

    Device fingerprint: lge/cv1_lao_com/cv1:7.1.2/N2G47H/180391525b535:user/release-keys

Please let me know if I can provide any more information that would be helpful to determine the problem and a good solution.