Dear all,
I´m using Unity 6.2 beta and Xcode 16.2. I´m creating a simple framework to use the text to speech functionality in VisionOS from unity. The framework is created in Swift. I create an objective-c wrapper with the following declarations:
... void _initTTS(int); ...
I create the framework, import it in Unity and call the functions in a c# wrapper class. The code is as follows:
public static class TTSPluginManager { [DllImport("TTS_Vision"] private static extern void _initTTS(int val); ... public static void Initialize() { #if UNITY_VISIONOS _initTTS(0); #else Debug.LogWarning("NativeTTS.Initialize called on a non-iOS platform. Ignoring."); #endif } }
I have managed to compile and run the program in the Apple Vision Pro, but I keep on getting the following error:
DllNotFoundException: TTS_Vision assembly:<unknown assembly> type:<unknown type> member:(null) TTSPluginManager.Initialize () (at Assets/Plugins/TTSPluginManager.cs:33) LecturePortalManager.OnCreateStory (Ink.Runtime.Story story) (at Assets/AVRLecture/LecturePortalManager.cs:17) InkLoader.StartStory () (at Assets/AVRLecture/InkLoader.cs:24) InkLoader.Start () (at Assets/AVRLecture/InkLoader.cs:18)
If I run the generated code from Xcode, I can see the app in the AVP, but I keep getting a loading error:
DllNotFoundException: Unable to load DLL 'TTS_Vision'. Tried the load the following dynamic libraries: Unable to load dynamic library '/TTS_Vision' because of 'Failed to open the requested dynamic library (0x06000000) dlerror() = dlopen(/TTS_Vision, 0x0005): tried: '/TTS_Vision' (no such file) at TTSPluginManager.Initialize () [0x00000] in <00000000000000000000000000000000>:0 at LecturePortalManager.OnCreateStory (Ink.Runtime.Story story) [0x00000] in <00000000000000000000000000000000>:0
I can see in the generated code that the framework (TTS_Vision) is there, but the path seems wrong. I've tried to add more options to the searched paths, with no success...
Any hints or suggestions are much more appreciated.
Hello @pablo_figueroa , thank you for your question!
Because you are using Unity to build your project, it's difficult for us to know exactly what might be breaking. I highly recommend sending feedback using Feedback Assistant with your attached project, and then including the ticket number here, so we can look more closely. Additionally, I recommend reaching out to Unity on their developer forums in case anyone there has experienced a similar issue.
In the Frameworks, Libraries and Embedded Content section of your Xcode project, do you see your framework listed there? It should be set to Embed & Sign. If I recall correctly there is a checkbox in Unity in the inspector for your plugin under the visionOS tab at the bottom, "Add to Embedded Binaries", that may help. You can check out our documentation here.
Let me know if you have any more questions! Thank you!
