ARCore UnityEngine.XR.Tango... method not found

Hi, I’m using ARCore. Before today, i made 3 simple app with ARCore and they works as well.
Today, the same ( rebuild ) project, start but the surfaces searching doesn’t work. At start, logcat show this errors:

E/Unity(30818): MissingMethodException: Method not found: ‘UnityEngine.XR.Tango.TangoInputTracking.add_trackingAcquired’.

E/Unity(30818): Rethrow as TypeInitializationException: An exception was thrown by the type initializer for GoogleAR.UnityNative.InputTracking

E/Unity(30818): at GoogleARCoreInternal.MotionTrackingManager.TryGetLatestPose (UnityEngine.Pose& pose, System.Double& timestamp) [0x00000] in :0

E/Unity(30818): at GoogleARCore.Frame.get_TrackingState () [0x00000] in :0

E/Unity(30818): at GoogleARCoreInternal.AnchorManager.EarlyUpdate () [0x00000] in :0

E/Unity(30818): at GoogleARCoreInternal.SessionManager.EarlyUpdate () [0x00000] in :0

E/Unity(30818): at GoogleARCore.SessionComponent.Update () [0x00000] in :0

I’m on Unity3d 2017.20b10 and Samsung S8

Hello-

This issue was fixed in 2017.2b11. Please download that version of Unity.

-Best,
Mike Durand

Problem solved thanks