Unity 5.1.1 upgrade issue

[puzzlekings]

Hi Jake

I just upgraded my project to 5.1.1 from 5.0.1 and I am seeing this error:

Failed getting triangles. Submesh topology is lines or points.
UnityEngine.Mesh:get_triangles()
FluffyUnderware.Curvy.Utils.MeshInfo:.ctor(Mesh, Boolean, Boolean) (at Assets/Curvy/Base/CurvyUtility.cs:59)
SplinePathMeshBuilderrepare() (at Assets/Curvy/Components/SplinePathMeshBuilder.cs:600)
SplinePathMeshBuilder:Refresh() (at Assets/Curvy/Components/SplinePathMeshBuilder.cs:543)
RoadBuilder:BuildRoad(SplinePathMeshBuilder, GameObject) (at Assets/Curvy/RoadBuilder.cs:115)
RoadBuilder:CreateSplineAndBuildRoad() (at Assets/Curvy/RoadBuilder.cs:70)
RoadBuilder:Awake() (at Assets/Curvy/RoadBuilder.cs:24)
UnityEngine.Object:Instantiate(Object, Vector3, Quaternion)
PoolBoss:InstantiateForPool(Transform, Int32) (at Assets/DarkTonic/PoolBoss/Scripts/PoolBoss.cs:97)
PoolBoss:Awake() (at Assets/DarkTonic/PoolBoss/Scripts/PoolBoss.cs:79)

Visually everything appears to be ok, but the stream of errors is worrying.

Do you have any ideas on what this could be? and how to fix it?

cheers

Nalin