Xcode build error Invalid bitcode version...

Build & Deployment
1

Hi
I am working my project and build successfully in Unity (version : 2021.2.0a21 and 2020.3.12f1).
when I opened with Xcode, I get this below error code.Xcode version is 12.4

I have no idea what they are saying…
could you please kindly help me for solving this error?I am suspecting Unity bitcode and Xcode bitcode does not match???
ld: warning: arm64 function not 4-byte aligned: _unwind_tester from /Volumes/Macintosh HD/01.Unity_Project/11.Fanzootastic/03.build/ver.9.test/Libraries/libiPhone-lib.a(unwind_test_arm64.o)

ld: in /Volumes/Macintosh HD/01.Unity_Project/11.Fanzootastic/03.build/ver.9.test/Libraries/Plugins/iOS/unity-plugin-library.a(GADUBanner_e1ca55b395064147a6f81a9b54e513ca.o), could not parse object file /Volumes/Macintosh HD/01.Unity_Project/11.Fanzootastic/03.build/ver.9.test/Libraries/Plugins/iOS/unity-plugin-library.a(GADUBanner_e1ca55b395064147a6f81a9b54e513ca.o): ‘Invalid bitcode version (Producer: ‘1205.0.22.9.0_0’ Reader: ‘1200.0.32.29_0’)’, using libLTO version ‘LLVM version 12.0.0, (clang-1200.0.32.29)’ file ‘/Volumes/Macintosh HD/01.Unity_Project/11.Fanzootastic/03.build/ver.9.test/Libraries/Plugins/iOS/unity-plugin-library.a’ for architecture arm64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

I am suspecting something do with unity setting, but I could not find anywhere in google.
I hope someone can help me for this issue.

thank you in advance.
Shota

2

Exactly the same problem here. Please let me know if you found a solution (i will do the same if i find one :))

Edit: i read elsewhere that this usually means that Xcode is out of date, and our error seems consistent with that explanation: ‘Invalid bitcode version (Producer: ‘1205.0.22.9.0_0’ Reader: ‘1200.0.32.29_0’)’. I’ll update XCode to 12.5.1 and let you know if that solved it…

3

Hi Thank you so much for your message.
Yeah, I will also let you know once I get something.
thanks.

4

Simply updating XCode solved it for me!

5

thank you for the update.
which version are you using for Xcode?

6

also may I ask which device you are using???
ex : 2021 mac mini or 2010 imac

it is because I am currently using iMac 2013 late model and Xcode only covers 12.4.
if I need to upgrade my Xcode, it means I also need to buy a newer mode which covers the latest version.

am I right???

7

I’m on the latest XCode version (12.5.1) now on a MacBook Air that I bought about a year ago. My hunch is that the “Producer: 1205.XXXX” means that you need to be on Xcode 12.5 to solve this problem (there is no such thing as 12.05 or 12.0.5 as far as i’m aware, so 1205 probably means 12.5?). If you can’t run 12.5, then the only alternative seems to be to downgrade your Google Mobile Ads SDK. If that’s not possible either, then i’m afraid you’ll have to update your hardware (or look into cloud build options)

8

Thank you so much for your kindest reply. I am really appreciated for your advise.
I see, I think I am going to need to downgrade first for my Google Mobile Ads ADK then. hopefully it will change my result, though. Thank you so much again for your help.

9

Thank you so much again for your great advise :slight_smile:
it really worked when I downgraded my Google Mobile Ads and just in case Unity version code as well.
You are so genius!
I am really appreciated so much .

thank you
Shota

10

You can copy and replace this files from 12.5.1 Xcode:
Xcode.app/Contents/Developer/usr/lib/bitcode_build_tool/verifier.py - for new compiler options support
Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain - for support new bitcode
and then it worked for me

11

hey eveyone, how can you solve this problem using unity cloud build ? (I don’t have a mac unfortunately, so I rely on cloud build only)