Apple M1 Max '/usr/lib/libpng16.16.dylib' (no such file)

[aramnhammer]

Version of Dear PyGui

Version: 1.6.2 Operating System: Mac OS Monterey 12.4 (M1 Max)

My Issue/Question

Getting the following Import Error when trying to run my application:

  Reason: tried: '/usr/local/opt/libpng/lib/libpng16.16.dylib' (no such file), '/usr/lib/libpng16.16.dylib' (no such file)

Fresh install on a completely new computer. Tried using python 3.7 to 3.9 with the same results.

What iv tried

• brew install libpng

Warning: libpng 1.6.37 is already installed and up-to-date.
To reinstall 1.6.37, run:
  brew reinstall libpng

• rebooted and retired with the same result

To Reproduce

• run a basic dearpygui example on M1 mbp

Steps to reproduce the behavior:

1. Copy the code below into a python file on an M1 mac
2. Run the code

Standalone, minimal, complete and verifiable example

import dearpygui.dearpygui as dpg

def save_callback():
    print("Save Clicked")

dpg.create_context()
dpg.create_viewport()
dpg.setup_dearpygui()

with dpg.window(label="Example Window"):
    dpg.add_text("Hello world")
    dpg.add_button(label="Save", callback=save_callback)
    dpg.add_input_text(label="string")
    dpg.add_slider_float(label="float")

dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()

Any ideas on what could be the issue would be much appreciated, thanks!

[aramnhammer]

Noticed one thing, seems homebrew is not placing symlinks under /usr/local/opt for some reason.

[aramnhammer]

homebrew install seems to be fixed, iv also copied the library (libpng16.16.dylib) to the specified location to see if that helps, but now it seems its detecting the wrong architecture.

[aramnhammer]

Fixed this by installing Homebrew in different location (for x86_64 package installs), temporarily setting it in my path, and installing the x86_64 version of libpng, then copying it to the expected location:

sudo mkdir -p /usr/local/opt
sudo chown $USER /usr/local/opt
cd /usr/local/opt
git clone https://github.com/Homebrew/brew
export PATH=/usr/local/opt/brew/bin:$PATH
arch -x86_64 brew reinstall libpng
sudo cp /usr/local/opt/brew/Cellar/libpng/1.6.37/lib/libpng16.16.dylib /usr/local/opt/libpng/lib/.

[west-rynes]

This appears to be a general issue for MacOS and not just M1. I see this issue on Intel systems as well. Appears to be duplicate of #1397.

[hoffstadt]

This should be fixed!