How can I disable Bitcode support?

• 

  Tom Kane

  • June 24, 2019 08:08

  This was really useful, thanks. We were having issues with our iOS build and this has fixed it.

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• 

  Andrey Dolgov

  • October 17, 2019 02:57

  Doesn't work on compiling in Cloud Build:

  error CS0234: The type or namespace name 'Callbacks' does not exist in the namespace 'UnityEditor' (are you missing an assembly reference?)
  error CS0234: The type or namespace name 'iOS' does not exist in the namespace 'UnityEditor' (are you missing an assembly reference?)
  error CS0246: The type or namespace name 'BuildTarget' could not be found (are you missing a using directive or an assembly reference?)
  error CS0246: The type or namespace name 'PostProcessBuildAttribute' could not be found (are you missing a using directive or an assembly reference?)
  error CS0246: The type or namespace name 'PostProcessBuild' could not be found (are you missing a using directive or an assembly reference?)

  Is there a way to configure Cloud Build to disable bitcode?

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• 

  Edd Smith

  • October 17, 2019 07:44

  Andrey Dolgov - My guess would be that you've not put the script in an Editor folder which is why it can't find those classes.

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• 

  Elizeu Emanuel Herichs Becker

  • June 05, 2020 17:29

  Doesn't work in 2019.3, xcode doesn't even give you the option to disable bitcode manually.

  I'm using:

  Unity 2019.3.15

  Xcode 11.5

  iOS 13.5

  I'm trying to build an app with easyAR but it always give me this:

  /Frameworks/Plugins/iOS/easyar.framework/easyar(easyar-arm64-master.o)' does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target.

  I tried going to the file that it points to and add ENABLE_BITCODE (tried NO and YES) to the Info.plist of the framework but no success.

  Tried all of this in two projecs, one with firebase (generates xcworkspace) and another with easy ar only (generates xcodeproj), both had the same error.

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• 

  Nurullah Morshed

  • June 12, 2020 03:41

  Elizeu Emanuel Herichs Becker
  
  

  The code shown here no longer works due to the way Unity has changed the targets in xcode in Unity 2019.3 and later.

  I made this modification to the code to get it working again.

   

  #if UNITY_IOS
  using System.Collections.Generic;
  using UnityEngine;
  using UnityEditor;
  using UnityEditor.Callbacks;
  using UnityEditor.iOS.Xcode;

  
  public static class MyBuildPostprocess
  {
  [PostProcessBuild( 1000 )]
  public static void PostProcessBuildAttribute( BuildTarget target, string pathToBuildProject )
  {
  if(target == BuildTarget.iOS)
  {
  string projectPath = PBXProject.GetPBXProjectPath(pathToBuildProject);
  
  PBXProject pbxProject = new PBXProject();
  pbxProject.ReadFromFile(projectPath);
  string[] targetGuids = new string[2] { pbxProject.GetUnityMainTargetGuid(), pbxProject.GetUnityFrameworkTargetGuid() };

  pbxProject.SetBuildProperty(targetGuids, "ENABLE_BITCODE", "NO");
  pbxProject.WriteToFile (projectPath);
  }
  }
  }
  #endif

   

  2
• 

  Yuhan Yang

  • November 13, 2020 19:05

  I'm using uinty2019.4 now and got the "bitcode error". The project only contains an empty scene and a third-party plugin. The method of disabling bitcode works well for unity 2018, but it doesn't work for the unity 2019.4 project. I already switched to the script provided by Nurullah.

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• 

  Nurullah Morshed

  • November 17, 2020 12:42

  Yuhan Yang did updated script I provide work for you? We migrated away from doing iOS builds after I set up the script so I have not triggered iOS builds in quite a while. However, I am happy to help you troubleshoot it, if it is not working for you.

  0
• 

  Samuel Bjørn Mumm Jessen

  • December 17, 2020 11:41

  Nurullah Morshed

  Thanks! This worked for me in unity 2019.4

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• 

  Greg Bradburn

  • February 03, 2021 13:14

  Greetings, I'm using the modified script from Nurullah in 2020.1.6f1. I need to disable bitcode for the AdMix plugin. Using the latest build from CloudBuild AdMix is not showing ads and I can't tell from the build log if CloudBuild honored the script and disabled bitcode. Any suggestions on how I can confirm if bitcode is disabled in that build?
  
  Thanks!

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• 

  Nurullah Morshed

  • July 24, 2021 10:50

  Greg Bradburn Samuel Bjørn Mumm Jessen
  I'm glad it helped :D
  It looks like Unity finally updated their reference script to work with the new APIs as well, so hopefully this isn't a problem for people anymore!

  0
• 

  Misha Krasnorutsky

  • January 04, 2023 09:58

  Symptoms:

   

  • I am developing a game for iOS.

  • I want to set ENABLE_BITCODE=NO in the Xcode project as the default setting for an Xcode project exported by Unity.

  • I have several third-party libraries which still do not support Bitcode on iOS. 

  The main problem with bitcode is not listed here. I have never seen libraries without bitcode support. What I see every day are libraries with incompatible bitcode versions.
  Almost every big Xcode release comes with a new clang compiler with a new bitcode version that is incompatible with all the previous versions. New third party libraries with incompatible bitcode versions appear more often than I take a shower.
  Yes, Apple recommends using bitcode. But there are NO practical benefits of using it.

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