Paraser cannot follow:

hello_wolf/hello_wolf_config.yaml

@@ -15,6 +15,7 @@ config:
       name:               "sen odom"
       extrinsic: 
         pose:             [0,0, 0]
+      #follow:             "/Users/jsola/dev/wolf_lib/core/hello_wolf/sensor_odom_2D.yaml"
       k_disp_to_disp:     0.1
       k_rot_to_rot:       0.1
 

hello_wolf/sensor_odom_2D.yaml

+type: "ODOM 2D"              # This must match the KEY used in the SensorFactory. Otherwise it is an error.
+
+k_disp_to_disp:   0.1  # m^2   / m
+k_rot_to_rot:     0.1  # rad^2 / rad