Undefined symbols error on build iOS Unity project

[stdev33]

Goals

Build Unity application for iOS target platform using Realm

Expected Results

Finish build process with no linker errors.

Actual Results

Linker error
Undefined symbols for architecture arm64: "_realm_thread_safe_reference_destroy", referenced from: _ThreadSafeReferenceHandle_Unbind_m8B516E342FFE32FA967A0774363A935962952FCD in Realm1.o _NativeMethods_destroy_realm_reference_m5953D89668770CFD7399888C4CF3FBCC136A591B in Realm1.o ld: symbol(s) not found for architecture arm64

Steps to Reproduce

1. Create an empty Unity project, switch Build target to iOS;
2. Import realm.unity.bundle-10.1.2.tgz using Package Manager;
3. Create sample .cs script that invokes Realm.GetInstance() and uses sample RealmObject. Attach script to any object in the SampleScene.unity;
4. Export Xcode project (File --> Build Settings... --> Build);
5. Open Xcode project, setup your Team, Bundle Identifier and Provisioning Profile etc. in Signing & Capabilities tab;
6. Set Enable Bitcode property to NO for both Unity-iPhone and UnityFramework targets (Build Settings tab --> Build Options);
7. Try to build Xcode project (Command+B or top menu Product --> Build);
8. Linker error will be thrown Undefined symbols for architecture arm64: "_realm_thread_safe_reference_destroy", referenced from: _ThreadSafeReferenceHandle_Unbind_m8B516E342FFE32FA967A0774363A935962952FCD in Realm1.o _NativeMethods_destroy_realm_reference_m5953D89668770CFD7399888C4CF3FBCC136A591B in Realm1.o ld: symbol(s) not found for architecture arm64

Code Sample

Version of Realm and Tooling

• Realm Object Server Version: ? (you can see this as well in Studio once connected to a Realm instance)
• Flavor:
  • Realm Cloud
  • Self-Hosted
• Server OS & Version: ? (e.g. CentOS 6)
• Client SDK Version: realm.unity.bundle-10.1.2
• Client OS & Version: macOS Catalina 10.15.7
• Unity 2020.3.2f1 (also reproduced with Unity 2019.4.20f1)
• Xcode 12.4

[nirinchev]

Hey, thanks for trying out the super early preview of the Unity version and providing detailed repro steps! The team is out for the Easter holidays, but we'll try to take a look next week.

[nirinchev]

Hey, sorry for the delay here - I can see the issue and will have a fix shortly.