Linking fails in a project with Elastic APM iOS package (both SPM)

[crownvic]

📚 AppMetrica SDK Version

5.1.0

🛠️ Xcode Version

Version 15.3 (15E204a)

📱 Device Information

iPhone 15 simulator iOS 17.4 (21E213)

⚙️ Installation Method

Swift Package Manager

📝 Description

AppMetrica is working great in my project. Now I need to add Elastic APM Agent. I tried adding it through SPM from here: https://github.com/elastic/apm-agent-ios (version 1.0.0). But when I build the project (doesn't matter if it's debug or release mode), I get these errors:

duplicate symbol '_protobuf_c_buffer_simple_append' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_empty_string' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_enum_descriptor_get_value' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_enum_descriptor_get_value_by_name' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_check' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_descriptor_get_field' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_descriptor_get_field_by_name' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_free_unpacked' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_get_packed_size' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_init' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_pack' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_pack_to_buffer' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_message_unpack' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_service_descriptor_get_method_by_name' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_service_destroy' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_service_generated_init' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_service_invoke_internal' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_version' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o duplicate symbol '_protobuf_c_version_number' in: hidden/Build/Products/Debug-iphonesimulator/AppMetrica_Protobuf.o hidden/Build/Products/Debug-iphonesimulator/CrashReporter.o ld: 19 duplicate symbols for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

Since I'm using Firebase and other Objective-C packages in the project, I have these "other linker flags" set up:

• For debug builds: -ObjC -ld_classic -Wl
• For release builds: just -ObjC

🔍 Reproducing the issue

1. Add AppMetrica to the project via SPM (it should compile fine)
2. Add at least -ObjC flag to "Other Linker Flags" in project's build settings
3. Add https://github.com/elastic/apm-agent-ios (version 1.0.0) via SPM and try to build the project

📋 Relevant AppMetrica Log Output or Crash Logs

No response

📦 Attach Package.resolved (Swift Package Manager Users)

No response

🍫 Attach Podfile.lock (CocoaPods Users)

No response

[Sergey70]

Thank you for reporting the issue. We've identified the problem and working on a fix. This issue will be resolved in the upcoming update.

[GLinnik21]

Hello. I just want to make it clear. Does it reproduce only with the -ObjC flag present in the linker options?

[crownvic]

Hello. I just want to make it clear. Does it reproduce only with the -ObjC flag present in the linker options?

Well, I created a new empty app project, added AppMetrica, then added Elastic APM Agent, and it also fails without the '-ObjC' flag as well.

[GLinnik21]

Hello @crownvic,

We've reassessed the issue and realized it's more intricate than we initially thought, requiring substantial work beyond a quick fix. Unfortunately, this means a resolution won't be ready for the next release. We're dedicated to finding a solid solution and appreciate your patience.