godot: Can't build for iOS on XCode 9.2 - entry point (_main) undefined. for architecture i386

I am having the same problem as the user pip in QA.

Godot version: 3.0.2 stable

OS/device including version: MacBook Air (13-inch, Early 2014) (1,4 GHz Intel Core i5) MacOS High Sierra 10.13.3

Issue description: I should be able to build and run the generated XCode project. It does not build successfully.

Steps to reproduce:

I have installed the export templates and tried to export an empty Godot project.

Project > Export > iOS(Runnable)
Fill the required icons and launch screens.
Enter App Store Team ID (This should be obsolete since Xcode automatically handles the signing now. The team ID can no longer be found on the apple dev website)
Export project *.ipa (even tough Godot only exports the Xcode files and not an ipa file)
Opened the generated .xcodeproj in XCode 9.2
Changed to my personal team in iOSExport target > General > Signing > Team

When I hit build in Xcode I get these same error:

ld: warning: ignoring file /Users/alejandro/Godot3Projects/iOSExport.a, missing required architecture i386 in file /Users/alejandro/Godot3Projects/iOSExport.a (2 slices)
ld: entry point (_main) undefined. for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

ld: warning: ignoring file /Users/alejandro/Godot3Projects/iOSExport.a, missing required architecture x86_64 in file /Users/alejandro/Godot3Projects/iOSExport.a (2 slices)
ld: entry point (_main) undefined. for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Note that one says architecture i386 and the other architecture x86_64.

Minimal reproduction project: Empty new project.

About this issue

Original URL
State: closed
Created 6 years ago
Comments: 27 (14 by maintainers)

Most upvoted comments

I solved those problems by:

Changing the General > Identity > Bundle Identifier
Turning off General > Signing > Automatically Manage Signing, and then turn it on again
Changing Team to None, and then choosing my Personal Team
Going to appName/appName.entitlements and removing APS Environment

After that, I could get it to run on a physical device.

jahd2602 on Mar 31, 2018

Are you trying to run on simulator (i386)? If so, the template won’t work.

Shin-NiL on Mar 29, 2018

Yes, I think you’re right. I had same result when I tried official beta template as well as custom build. I never got emulator to work, but real device is ok.

wombatwingdings on Feb 13, 2019

You could use the 3.1 beta 2 templates with the 3.1 beta 2 editor binary: https://godotengine.org/article/dev-snapshot-godot-3-1-beta-2

scons p=iphone tools=no bits=32 target=release arch=arm7

It’s actually armv7. Doesn’t matter in the end as if the arch argument is invalid, it builds armv7.

lipo -create libgodot.iphone.opt.arm.a libgodot.iphone.opt.arm64.a -output libgodot.iphone.release.fat.a lipo -create libgodot.iphone.debug.arm.a libgodot.iphone.debug.arm64.a -output libgodot.iphone.debug.fat.a

You need to collate the x86 and x86_64 libraries here too.

See the build scripts for 3.0.6 (missing x86_64, this has been added later on): https://notabug.org/hp/godot-scripts/src/master/build-godot-macosx.sh#L45-L53 https://notabug.org/hp/godot-scripts/src/master/build-godot.sh#L310-L317

akien-mga on Jan 23, 2019

The reason you must turn automatically manage signing off and on is because by default it tries to use the Push Notifications and Game Center capabilities which non-paying devs don’t have permission to use. The easiest way to solve this is to:

Make the General > Identity > Bundle Identifier Something unique. It doesn’t matter what, it just has to be unique.
Turn off General > Signing > Automatically Manage Signing
Go to the Capabilities tab, and turn off the Game Center and Push Notifications Capabilities
Turn back on General > Signing > Automatically Manage Signing , and Select your team.

In Response to the original question: A quick web search shows that you generally get linker errors such as clang: error: linker command failed with exit code 1 (use -v to see invocation) due to missing libraries. For me it was the StoreKit.framework. This is solved by going to Build Phases > Link Binary With Libraries And pressing the plus button to add a library. In my case I just searched for StoreKit and added the library.

alasdairbarton on Oct 29, 2018

Ah, it wasn’t clear that the project wouldn’t work for the simulator. I got it working on a device.

hyponymous on Mar 30, 2018

I’m getting the same error as @jahd2602, and I’ve entered my team id. I’m also not seeing a .ipa file generated on export.

hyponymous on Mar 29, 2018