[Solved]Additive Scene NavMesh Problem >"SetDestination" can only be called Error...

Unity Engine
1

Hello all,
i hope you have a great day, i came up a problem when using NavMesh with Additive Scenes.
Here is what i try to accomplish;
i have a character that i set as NavMesh agent in my first Scene.
when player clikcs a button it calls this function :
Click to See code

 private IEnumerator LoadSceneAndSetActive (string sceneName)
    {
        yield return SceneManager.LoadSceneAsync (sceneName, LoadSceneMode.Additive);

        Scene newlyLoadedScene = SceneManager.GetSceneAt (SceneManager.sceneCount - 1);
        SceneManager.SetActiveScene (newlyLoadedScene);
    }

But after new scene loaded, when i try to move my character, it throws this Error:
Error

“SetDestination” can only be called on an active agent that has been placed on a NavMesh.
UnityEngine.AI.NavMeshAgent:SetDestination(Vector3)
PlayerMovement:OnGroundClick(BaseEventData) (at Assets/_Scripts/MonoBehaviours/Player/PlayerMovement.cs:89)
UnityEngine.EventSystems.EventSystem:Update()

&&

“Resume” can only be called on an active agent that has been placed on a NavMesh.
UnityEngine.AI.NavMeshAgent:set_isStopped(Boolean)
PlayerMovement:OnGroundClick(BaseEventData) (at Assets/_Scripts/MonoBehaviours/Player/PlayerMovement.cs:90)
UnityEngine.EventSystems.EventSystem:Update()

and here is the my movement script’s related part to this Error :
Click to see code

 public void OnGroundClick(BaseEventData data)
    {
        Debug.Log("OnGroundClick");
        PointerEventData pData = (PointerEventData)data;
        NavMeshHit hit;
        if (NavMesh.SamplePosition (pData.pointerCurrentRaycast.worldPosition, out hit, navMeshSampleDistance, NavMesh.AllAreas))
            destinationPosition = hit.position;
        else
            destinationPosition = pData.pointerCurrentRaycast.worldPosition;
        agent.SetDestination(destinationPosition);
        agent.isStopped = false;
    }

is there anyone who suggest a solution to this ?

thanks for your time for reading my question.
cheers :slight_smile:

EDIT:
problem wasn’t navmesh related… case closed.

2

Could you tell what the problem was ? I’m having the same issue…

3

I am still working on same project since then but i can not really remember how i did solve this problem. but try to move your player to new scene like this " SceneManager.MoveGameObjectToScene(); " hope it helps, if its not . i highly recommend using this navigation system: " https://github.com/Unity-Technologies/NavMeshComponents " if its not too late to change , unfortunately it was too late for me.

4

Dont listen to the user above, navmeshcomponents is out of date and is now inside of Unity. Its called NavMeshBuilder now.

Is NavMeshComponents abandoned?
Integration of NavMesh Building Components
5

!! Oh so that’s why the github project is apparently dead! As of which Unity version is this the case?

6

I’ve got the same errors:

though my agents (enemies) are moving.

Can these erros be due to using NavMeshComponents? I use these to make navmeshbuild at runtime, because I have level generator.

7

Possibly, unity havent commented on whats up with that repo and if we should be using it anymore…

8

I decided to put my error-generating code into Try block:

 try
            {
                m.agent.isStopped = false;
                m.agent.SetDestination(m.destinationPosition);
            }
            catch
            {
            }

and it doesn’t generate errors, and works as expected. so I’m happy on this. (maybe this will help anyone else with same errors) :slight_smile:

1 Like