Kivy Ios issues with first time build/setup

[Russ D]

Hi,

I'm new to Kivy (and Xcode environment in general).  Past Ios Apps I've build were react native apps using Expo as framework (which abstracted out all Xcode needs).  Purely FYI.  

I followed the instructions for setting up and note that I've setup a Conda virtual env (with python 3.11),  and my Xcode is v 16.1 (I upgraded yesterday, previously was earlier version, probably 15),  and my MacOs version is Sonoma 14.5 on an Apple M1 Max.

Kivy was installed via:
  - conda install kivy -c conda-forge

Couple different issues:

1. "pip install Cython=3.0.0"... that worked fine. 

BUT, I happened to notice that "pip install kivy-ios" resulted in:

  - Cython-3.0.0 was uninstalled

  - Cython-0.29.36 was installed.

Is that an issue?   That is a much much older Cython.

2. "toolchain build kivy" caused a couple errors I noticed,  copied below:

These are from stdout.  Is there is a build log file somewhere???

[DEBUG   ] checking for arm-apple-darwin11-gcc... xcrun -sdk iphoneos clang -target armv7-apple-ios
[DEBUG   ] checking whether the C compiler works... no
[DEBUG   ] configure: error: in `/Users/russdaigle/code/ios-apps/kivy-ai2/build/libffi/iphoneos-arm64/libffi-3.4.4/build_iphoneos-armv7':
[DEBUG   ] configure: error: C compiler cannot create executables
[DEBUG   ] See `config.log' for more details
[DEBUG   ] Traceback (most recent call last):
[DEBUG   ]   File "/Users/russdaigle/code/ios-apps/kivy-ai2/build/libffi/iphoneos-arm64/libffi-3.4.4/generate-darwin-source-and-headers.py", line 314, in <module>
[DEBUG   ]     generate_source_and_headers(
[DEBUG   ]   File "/Users/russdaigle/code/ios-apps/kivy-ai2/build/libffi/iphoneos-arm64/libffi-3.4.4/generate-darwin-source-and-headers.py", line 283, in generate_source_and_headers
[DEBUG   ]     build_target(ios_device_armv7_platform, platform_headers)
[DEBUG   ]   File "/Users/russdaigle/code/ios-apps/kivy-ai2/build/libffi/iphoneos-arm64/libffi-3.4.4/generate-darwin-source-and-headers.py", line 232, in build_target
[DEBUG   ]     subprocess.check_call(['../configure', '-host', platform.triple], env=env)
[DEBUG   ]   File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/subprocess.py", line 413, in check_call
[DEBUG   ]     raise CalledProcessError(retcode, cmd)
[DEBUG   ] subprocess.CalledProcessError: Command '['../configure', '-host', 'arm-apple-darwin11']' returned non-zero exit status 77.
Exception in thread background thread for pid 90522:
Traceback (most recent call last):
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/threading.py", line 1045, in _bootstrap_inner
    self.run()
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/threading.py", line 982, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/sh.py", line 1634, in wrap
    fn(*rgs, **kwargs)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/sh.py", line 2636, in background_thread
    handle_exit_code(exit_code)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/sh.py", line 2327, in fn
    return self.command.handle_command_exit_code(exit_code)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/sh.py", line 821, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1:

  RAN: /Users/russdaigle/code/ios-apps/kivy-ai2/env/bin/python3 generate-darwin-source-and-headers.py --only-ios

AND another error as follows:


checking for x86_64-apple-darwin13-gcc... xcrun -sdk iphonesimulator clang -target x86_64-apple-ios-simulator
check... (21140 more, please see e.stdout)

  STDERR:

Traceback (most recent call last):
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/bin/toolchain", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 1670, in main
    ToolchainCL()
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 1407, in __init__
    getattr(self, args.command)()
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 1483, in build
    build_recipes(args.recipe, ctx)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 1231, in build_recipes
    recipe.execute()
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 758, in execute
    self.build_all()
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 78, in _cache_execution
    f(self, *args, **kwargs)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 858, in build_all
    self.build(plat)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 78, in _cache_execution
    f(self, *args, **kwargs)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 844, in build
    self.build_platform(plat)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/recipes/libffi/__init__.py", line 29, in build_platform
    shprint(python3, "generate-darwin-source-and-headers.py", "--only-ios")
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/kivy_ios/toolchain.py", line 60, in shprint
    for line in cmd:
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/sh.py", line 877, in __next__
    self.wait()
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/sh.py", line 794, in wait
    self.handle_command_exit_code(exit_code)
  File "/Users/russdaigle/code/ios-apps/kivy-ai2/env/lib/python3.11/site-packages/sh.py", line 821, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1:

  RAN: /Users/russdaigle/code/ios-apps/kivy-ai2/env/bin/python3 generate-darwin-source-and-headers.py --only-ios

  STDOUT:
Skipping i386

[Tim Holme]

I also had this issue. I'm a first-time setup user and I hit the error:

[DEBUG   ] checking whether the C compiler works... no

[DEBUG   ] configure: error: in `/Users/.../build/libffi/iphoneos-arm64/libffi-3.4.4/build_iphoneos-armv7':

[DEBUG   ] configure: error: C compiler cannot create executables

[DEBUG   ] See `config.log' for more details

[DEBUG   ] Traceback (most recent call last):

[DEBUG   ]   File "/Users/.../build/libffi/iphoneos-arm64/libffi-3.4.4/generate-darwin-source-and-headers.py", line 314, in <module>

[DEBUG   ]     generate_source_and_headers(

[DEBUG   ]     ~~~~~~~~~~~~~~~~~~~~~~~~~~~^

[DEBUG   ]         generate_osx=not args.only_ios and not args.only_tvos and not args.only_watchos,

[DEBUG   ]         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

[Mirko Galimberti]

Hi Tim,

Can you please try switching to kivy-ios from `master` branch?

See: https://github.com/kivy/kivy-ios?tab=readme-ov-file#development

Mirko

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