update prefabs with new models. walkerstatic failed to train

Project/Assets/ML-Agents/Examples/Walker/Prefabs/Ragdoll/WalkerRagdollStSingleSpeedVariant.prefab

         type: 3}
       propertyPath: m_Model
       value: 
-      objectReference: {fileID: 11400000, guid: afc80030947564f6fb3134fd5eb98643,
+      objectReference: {fileID: 11400000, guid: 6328576cf5b5e45a3bf49967070b5df7,
         type: 3}
     - target: {fileID: 895268871377934298, guid: 765582efd9dda46ed98564603316353f,
         type: 3}

Project/Assets/ML-Agents/Examples/Walker/Prefabs/Ragdoll/WalkerRagdollStVariableSpeedVariant.prefab

         type: 3}
       propertyPath: m_Model
       value: 
-      objectReference: {fileID: 11400000, guid: 3cf64093a7fed40d289aa482939dbc9d,
+      objectReference: {fileID: 11400000, guid: 71f39bc92e5ae49edba82a2d411c0678,
         type: 3}
     - target: {fileID: 895268871377934298, guid: 765582efd9dda46ed98564603316353f,
         type: 3}

Project/Assets/ML-Agents/Examples/Walker/Scenes/WalkerStaticVariableSpeed.unity

   m_Modification:
     m_TransformParent: {fileID: 0}
     m_Modifications:
-    - target: {fileID: 1077752704035527913, guid: d0b01030cfe47462398dd15595ca95de,
-        type: 3}
-      propertyPath: m_Model
-      value: 
-      objectReference: {fileID: 11400000, guid: 71f39bc92e5ae49edba82a2d411c0678,
-        type: 3}
     - target: {fileID: 1077752704035527914, guid: d0b01030cfe47462398dd15595ca95de,
         type: 3}
       propertyPath: m_LocalPosition.x

Project/Assets/ML-Agents/Examples/Walker/Scripts/WalkerAgent.cs

         targetPos.y = 0;
         Vector3 relPos = Vector3.ClampMagnitude(m_OrientationCube.transform.InverseTransformPoint(targetPos), 100);
         sensor.AddObservation(relPos);
-//        Debug.DrawRay(targetPos, Vector3.up, Color.green,1);
-//        Debug.DrawRay(m_OrientationCube.transform.InverseTransformPoint(targetPos), Vector3.up * 2, Color.red,5);
+        Debug.DrawRay(targetPos, Vector3.up, Color.green,1);
+        Debug.DrawRay(m_OrientationCube.transform.InverseTransformPoint(targetPos), Vector3.up * 2, Color.red,5);
 //        sensor.AddObservation(Vector3.ClampMagnitude(m_OrientationCube.transform.InverseTransformPoint(target.transform.position), 100)
 //        sensor.AddObservation(targetPos);
 

Project/Assets/ML-Agents/Examples/SharedAssets/Scripts/WalkGroup.cs

-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-
-public class WalkGroup : MonoBehaviour
-{
-    [Range(0, 15)]
-    public float walkingSpeed = 15; //The walking speed to try and achieve
-    public float m_maxWalkingSpeed = 15; //The max walking speed
-}

Project/Assets/ML-Agents/Examples/SharedAssets/Scripts/WalkGroup.cs.meta

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