Symbol not found: _UnitySendMessage with iOS simulator

Unity Engine
,
1

Hello,

We recently moved our project from Unity 2017.2.1 to 2018.3, but ever since we upgraded, we’re getting crashes every time a native plugin tries to call UnitySendMessage from the iOS simulator, with the following error.

dyld: lazy symbol binding failed: Symbol not found: _UnitySendMessage
Referenced from: <path to app>
Expected in: flat namespace```
I know using the simulator isn't recommended, but we do use it sometimes and builds made with the older Unity version work perfectly fine. Anyone know if there were any changes that we might have missed?

Thanks!
5 Likes
2

i’m getting this same error using unity and facebook

1 Like
3

So do I!
Broke on this line

[FBUnityUtility sendMessageToUnity:FBUnityMessageName_OnInitComplete userData:userData requestId:0];

4

I’m getting the same error when I can FB.init() function from within the unity.

dyld: Symbol not found: _UnitySendMessage

5

me the same this fucking issues! anyone know how to solve?

6

Exact same issue! Up.

7

Same here, it’s a complete showstopper because in order to complete our facebook app review, we need to submit a working simulator build.

Has anyone tried upgrading to Facebook SDK 7.15.1 and can confirm if this fixes it?

8

Crap, I just upgraded to Facebook’s Unity SDK 7.15.1 and the same thing happens. UNITY PLEASE FIX

9

I already reported this bug to Facebook Team and they told me the bug lies in Unity 2018.3 and this bug still happen in Unity 2019.1b I have tested, anyone report this bug to Unity?

10

I did the workaround facebook team give me by checking symlink libraries Unity but the issues still stay. anyone pls report this bug to Unity as soon as possible

11

any1 test with real device?

12

I’m also getting this error with Unity 2018.3.4 and xcode simulator.

13

I’m facing the same issue and didn’t manage to solve it

14

Same issue here :confused: unity pls help

15

Unity! Please help! Our Facebook App review BLOCKED because of this!

2 Likes
16

If anyone has a solution, please tell us! Our Facebook review is also blocked because of this…

17

should i call to ceo of unity?

18

same issue here (2018.3.2f1), any solution?

19

???

20

plus 1. trying to build in simulator to do a Facebook App Review!!