libpng library isn't working with my xcode project

[Neutron-Jimmy]

Versions

• Python : 3.10.11
• MacOS version : 13.3.1
• XCode Version : 14.3
• Cython version : 0.29.34

Describe the bug
The libpng recipe isn't working. I built my toolchain recipes in a clean environment and everything appears to have installed correctly, and the app runs as intended on iOS, however it crashes when loading a .png file. It's giving me the same error that I get when loading .png files without libpng installed, so I don't think it is installing correctly.

To Reproduce
toolchain build python3 kivy pillow libpng

Expected behavior
A feature of my app allows the user to load images from file, and it works correctly with jpeg, but gives the error listed below when loading a .png file.

Logs
The relevant information is listed at the bottom of thee log, but I'm including the full log to be thorough:

2023-05-21 03:30:02.686638-0400 Project1[11742:2934152] Available orientation: KIVY_ORIENTATION=LandscapeLeft LandscapeRight Portrait PortraitUpsideDown
2023-05-21 03:30:02.686686-0400 Project1[11742:2934152] Initializing python
2023-05-21 03:30:02.785993-0400 Project1[11742:2934152] Running main.py: /private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/YourApp/main.pyc
[INFO   ] [Logger      ] Record log in /private/var/mobile/Containers/Data/Application/4BC9571C-16E9-41FA-A45E-CFC9F34C00AC/Documents/.kivy/logs/kivy_23-05-21_2.txt
[INFO   ] [Kivy        ] v2.2.0.dev0
[INFO   ] [Kivy        ] Installed at "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/__init__.py"
[INFO   ] [Python      ] v3.9.9 (main, May 21 2023, 01:29:23) 
[Clang 14.0.3 (clang-1403.0.22.14.1)]
[INFO   ] [Python      ] Interpreter at "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/Project1"
[INFO   ] [Logger      ] Purge log fired. Processing...
[INFO   ] [Logger      ] Purge finished!
[INFO   ] [Factory     ] 189 symbols loaded
[INFO   ] [Image       ] Providers: img_imageio, img_tex, img_sdl2 (img_dds, img_ffpyplayer, img_pil ignored)
[INFO   ] [Text        ] Provider: sdl2
[INFO   ] [Window      ] Provider: sdl2
2023-05-21 03:30:03.861005-0400 Project1[11742:2934152] You need UIApplicationSupportsIndirectInputEvents in your Info.plist for mouse support
2023-05-21 03:30:04.060006-0400 Project1[11742:2934152] Metal GPU Frame Capture Enabled
2023-05-21 03:30:04.062332-0400 Project1[11742:2934152] Metal API Validation Enabled
[INFO   ] [GL          ] Using the "OpenGL ES 2" graphics system
[INFO   ] [GL          ] Backend used <sdl2>
[INFO   ] [GL          ] OpenGL version <b'OpenGL ES 2.0 Metal - 99'>
[INFO   ] [GL          ] OpenGL vendor <b'Apple Inc.'>
[INFO   ] [GL          ] OpenGL renderer <b'Apple A12 GPU'>
[INFO   ] [GL          ] OpenGL parsed version: 2, 0
[INFO   ] [GL          ] Shading version <b'OpenGL ES GLSL ES 1.00'>
[INFO   ] [GL          ] Texture max size <4096>
[INFO   ] [GL          ] Texture max units <8>
[INFO   ] [Window      ] auto add sdl2 input provider
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
Got dlopen error on Foundation: dlopen(/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation, 0x0001): tried: '/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation' (no such file), '/private/preboot/Cryptexes/OS/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation' (no such file), '/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation' (no such file, not in dyld cache)
Got fallback dlopen error on Foundation: dlopen(/Groups/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation, 0x0001): tried: '/Groups/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation' (no such file), '/private/preboot/Cryptexes/OS/Groups/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation' (no such file), '/Groups/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation' (no such file), '/System/Library/Frameworks/Foundation.framework/Versions/Current/Foundation' (no such file, not in dyld cache)
[INFO   ] [GL          ] NPOT texture support is available
[INFO   ] [Base        ] Start application main loop
2023-05-21 03:30:04.756874-0400 Project1[11742:2934152] Unbalanced calls to begin/end appearance transitions for <SDL_uikitviewcontroller: 0x10c345b20>.
2023-05-21 03:30:04.757073-0400 Project1[11742:2934152] Unbalanced calls to begin/end appearance transitions for <SDL_uikitviewcontroller: 0x10c345b20>.
[INFO   ] [Base        ] Leaving application in progress...
 Traceback (most recent call last):
   File "/Users/Jimmy/Desktop/MyApp/Project1-ios/YourApp/main.py", line 536, in <module>
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/app.py", line 955, in run
     runTouchApp()
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/base.py", line 574, in runTouchApp
     EventLoop.mainloop()
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/base.py", line 339, in mainloop
     self.idle()
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/base.py", line 383, in idle
     self.dispatch_input()
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/base.py", line 334, in dispatch_input
     post_dispatch_input(*pop(0))
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/base.py", line 263, in post_dispatch_input
     listener.dispatch('on_motion', etype, me)
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/core/window/__init__.py", line 1664, in on_motion
     self.dispatch('on_touch_up', me)
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/core/window/__init__.py", line 1701, in on_touch_up
     if w.dispatch('on_touch_up', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/modalview.py", line 281, in on_touch_up
     super().on_touch_up(touch)
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 611, in on_touch_up
     if child.dispatch('on_touch_up', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 611, in on_touch_up
     if child.dispatch('on_touch_up', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 611, in on_touch_up
     if child.dispatch('on_touch_up', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/filechooser.py", line 563, in on_touch_up
     return super(FileChooserController, self).on_touch_up(touch)
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/relativelayout.py", line 322, in on_touch_up
     ret = super(RelativeLayout, self).on_touch_up(touch)
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 611, in on_touch_up
     if child.dispatch('on_touch_up', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 611, in on_touch_up
     if child.dispatch('on_touch_up', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 611, in on_touch_up
     if child.dispatch('on_touch_up', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/scrollview.py", line 968, in on_touch_up
     if self.dispatch('on_scroll_stop', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/scrollview.py", line 1005, in on_scroll_stop
     self.simulate_touch_down(touch)
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/scrollview.py", line 668, in simulate_touch_down
     ret = super(ScrollView, self).on_touch_down(touch)
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 589, in on_touch_down
     if child.dispatch('on_touch_down', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/scatter.py", line 535, in on_touch_down
     if super(Scatter, self).on_touch_down(touch):
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/widget.py", line 589, in on_touch_down
     if child.dispatch('on_touch_down', touch):
   File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/treeview.py", line 517, in on_touch_down
     node.dispatch('on_touch_down', touch)
   File "kivy/_event.pyx", line 727, in kivy._event.EventDispatcher.dispatch
   File "kivy/_event.pyx", line 1307, in kivy._event.EventObservers.dispatch
   File "kivy/_event.pyx", line 1191, in kivy._event.EventObservers._dispatch
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/lang/builder.py", line 55, in custom_callback
     exec(__kvlang__.co_value, idmap)
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/data/style.kv", line 344, in <module>
     on_touch_down: self.collide_point(*args[1].pos) and ctx.controller().entry_touched(self, args[1])
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/kivy/uix/filechooser.py", line 627, in entry_touched
     self.selection = [abspath(join(self.path, entry.path)), ]
   File "kivy/properties.pyx", line 520, in kivy.properties.Property.__set__
   File "kivy/properties.pyx", line 939, in kivy.properties.ListProperty.set
   File "kivy/properties.pyx", line 567, in kivy.properties.Property.set
   File "kivy/properties.pyx", line 606, in kivy.properties.Property._dispatch
   File "kivy/_event.pyx", line 1307, in kivy._event.EventObservers.dispatch
   File "kivy/_event.pyx", line 1213, in kivy._event.EventObservers._dispatch
   File "/Users/Jimmy/Desktop/MyApp/Project1-ios/YourApp/main.py", line 373, in on_selection
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/PIL/Image.py", line 904, in convert
     self.load()
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/PIL/ImageFile.py", line 274, in load
     raise_oserror(err_code)
   File "/private/var/containers/Bundle/Application/4115TYB0-0F63-4226-8B69-39531D5DF109/Project1.app/lib/python3.9/site-packages/PIL/ImageFile.py", line 67, in raise_oserror
     raise OSError(message + " when reading image file")
 OSError: codec configuration error when reading image file
2023-05-21 03:30:10.751984-0400 Project1[11742:2934152] Application quit abnormally!
2023-05-21 03:30:10.810767-0400 Project1[11742:2934152] Leaving
2023-05-21 03:30:10.812748-0400 Project1[11742:2934461] [client] No error handler for XPC error: Connection invalid