Main Issue: While building an iOS project using IL2CPP in Unity, I encountered the following error:
Command PhaseScriptExecution failed with a nonzero exit code Sub-Issue: Unity is unable to detect a compatible iPhoneOS SDK, even though Xcode is correctly installed and functioning as expected.
Error Message:
Unity.IL2CPP.Bee.BuildLogic.ToolchainNotFoundException: IL2CPP C++ code builder is unable to build C++ code. In order to build C++ code for Mac, you must have Xcode installed. Building for Apple Silicon requires Xcode 9.4 and Mac 10.12 SDK.
Xcode needs to be installed in the /Applications directory and have a name matching Xcode*.app. Or be selected using xcode-select.
It's also possible to use /Library/Developer/CommandLineTools if those match the listed requirements.
More information and installation instructions can be found here:
https://developer.apple.com/support/xcode/
Specific Xcode versions can be downloaded here:
https://developer.apple.com/download/more/
Unable to detect any compatible iPhoneOS SDK! Additional Errors & Observations:
- bee_backend Not Found
chmod: /Users/vaunicacalji/Desktop/DinoKite/Il2CppOutputProject/IL2CPP/build/deploy_x86_64/bee_backend/mac-x86_64/bee_backend: No such file or directory
Issue: Manually checking the file, bee_backend does exist and is executable, but the build process still reports it as missing.
2. IL2CPP Build Failure
Build failed with 0 successful nodes and 0 failed ones
Error: Internal build system error. BuildProgram exited with code 1.
3. Xcode Not Detected by Unity
Unable to detect any compatible iPhoneOS SDK!
Issue: Running xcode-select -p confirms that Xcode is installed at /Applications/Xcode.app/Contents/Developer, and xcodebuild -showsdks lists available SDKs, including iOS 18.2.
Environment Details:
macOS Version: Sonoma 14.5
Mac Model: MacBook Air (Retina, 13-inch, 2018)
Processor: 1.6 GHz Dual-Core Intel Core i5
Memory: 8GB 2133 MHz LPDDR3
Graphics: Intel UHD Graphics 617 1536MB
Unity Version: 2022.2.21f1
Installed Unity Modules:
✅ iOS Build Support
✅ Mac Build Support (IL2CPP)
✅ IL2CPP
Current Status & Key Issues:
✅ Xcode is properly installed, and xcode-select -p shows the correct path.
✅ xcodebuild -showsdks confirms that iOS SDK 18.2 is available.
✅ bee_backend is present and executable when checked manually.
❌ Unity still reports Unable to detect any compatible iPhoneOS SDK! during the build process.
❌ Unable to successfully build the iOS project.
Could you please provide guidance on how to resolve this issue?
Xcode Build Settings (for reference): ALWAYS_SEARCH_USER_PATHS = NO ARCHS = arm64 ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon CLANG_CXX_LANGUAGE_STANDARD = c++0x CLANG_CXX_LIBRARY = libc++ CLANG_ENABLE_OBJC_ARC = YES CODE_SIGN_IDENTITY[sdk=iphoneos*] = iPhone Distribution CODE_SIGN_IDENTITY[config=Debug] = Apple Development CODE_SIGN_IDENTITY[config=Release] = Apple Distribution CODE_SIGN_STYLE = Manual DEVELOPMENT_TEAM[sdk=iphoneos*] = 4429TL28T7 IPHONEOS_DEPLOYMENT_TARGET = 15.6 LD_RUNPATH_SEARCH_PATHS = $(inherited) @executable_path/Frameworks PRODUCT_BUNDLE_IDENTIFIER = com.torihiplay.DinoKite PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*] = DinoKite. SDKROOT = iphoneos SUPPORTED_PLATFORMS = iphoneos TARGETED_DEVICE_FAMILY = 1,2 UNITY_RUNTIME_VERSION = 2022.2.21f1 UNITY_SCRIPTING_BACKEND = il2cpp This build is intended for a production release.
I would appreciate any help in resolving this issue. Thank you!
