Cannot load PNG because libpng support was not compiled.

[gitlabspy]

Apple M1 Pro. Follow the installation instructions, and try to run examples ./heif-enc to convert png to heif and get error Cannot load PNG because libpng support was not compiled. pkg-config can locate libpng.

[bigcat88]

brew install libpng and build libheif after tha or install libheif itself with homebrew will do the job.

[gitlabspy]

Errors pop after brew install libpng, it seems to be m1 version of brew 's problem? libpng installed properly.

$ pkg-config --list-all 
libde265     libde265 - H.265/HEVC video decoder.
libpng       libpng - Loads and saves PNG files
libpng16     libpng - Loads and saves PNG files

[bigcat88]

Errors pop after brew install libpng, it seems to be m1 version of brew 's problem? libpng installed properly.

Try brew reinstall libheif then. Are you using Monterey? I didn't test it on Big Sur, but for me on Monterey it works fine.

[farindk]

Is this solved? Can we close it?