2D Toolkit Forum

2D Toolkit => Support => Topic started by: xfa27 on September 14, 2013, 06:33:24 pm

Title: Null reference exception in tk2dtextmesh.commit()
Post by: xfa27 on September 14, 2013, 06:33:24 pm

Hi unikron,

Currently using 2d toolkit for my game. I got this strange problem when updating a tk2dtextmesh using tk2dtextmesh.Commit(), after assigning text from a int variable using tk2dtextmesh.text = (int variable).toString();

Sometimes it works, but after a few tries it returns a null reference exception, and after that it won't work anymore.

I'm currently calling the assigning and commit code using a event-delegate method. the text is a tk2dtextmesh in a scene that is assigned to the update script via drag and drop from the scene.

Here's the code : (note some name are replaced with ~ for privacy)

NullReferenceException
  at UnityEngine.Component.GetComponent[MeshFilter] () [0x00000] in <filename unknown>:0
  at tk2dTextMesh.Init () [0x00277] in /Volumes/Temp/~/TK2DROOT/tk2d/Code/Fonts/tk2dTextMesh.cs:505
  at tk2dTextMesh.Commit () [0x0002f] in /Volumes/Temp/~Assets/TK2DROOT/tk2d/Code/Fonts/tk2dTextMesh.cs:546
  at (wrapper delegate-invoke) EventsController/~Handler:invoke_void__this__ ()
  at (wrapper delegate-invoke)

Title: Re: Null reference exception in tk2dtextmesh.commit()
Post by: unikronsoftware on September 15, 2013, 09:26:45 am

Hi. How is your scene set up?
Do you have nested prefabs? There is a bug in Unity that resets objects in nested prefabs which could potentially cause this. Also, where is the delegate being called from?

Title: Re: Null reference exception in tk2dtextmesh.commit()
Post by: xfa27 on September 16, 2013, 05:25:39 am

Hi,

I don't have any nested prefab. All i did is just put a button prefab inside a tk2dcamera anchor.

Can I ask for your email ? It might be easier to send you a sample scene. What's odd is that it works at the beginning, but after a few times it just stop working and only work if the app is reinstalled.

Title: Re: Null reference exception in tk2dtextmesh.commit()
Post by: gary-unikronsoftware on September 16, 2013, 09:15:16 am

You can send your package to support at unikronsoftware.com

Title: Re: Null reference exception in tk2dtextmesh.commit()
Post by: xfa27 on October 03, 2013, 04:30:23 am

Hi,

Back on this. I am unable to duplicate it on a simplified project. It was quite a complex scene with multiple camera anchor but without any prefab (it was a score screen). The error happened when I combined using prime31 social networking, and I want to update the screen after a successful social post. It then will only happen after several times..

I don't know if this is unity bug or 2d toolkit bug, but right now I redone the entire scene simplified totally, and it works fine now. Thanks for the quick support and reply.