E: Package 'libpng12-dev' has no installation candidate

[echojust]

ERROR: Service 'php-fpm' failed to build: The command '/bin/sh -c apt-get update && apt-get install -y --no-install-recommends curl libmemcached-dev libz-dev libpq-dev libjpeg-dev libpng12-dev libfreetype6-dev libssl-dev libmcrypt-dev && pecl channel-update pecl.php.net && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100；

php-ftm/Dockerfile-71:
libpng12-dev \ => libpng-dev \