not work when PHP_VERION = 7.2

[lightWey]

Info:

• Docker version ($ docker --version): 18.03.1-ce, build 9ee9f40
• Laradock commit ($ git rev-parse HEAD): 0c41fce
• System info (Mac, PC, Linux): Mac
• System info disto/version: High Sierra 10.13.4

Issue:

When I change the PHP_VERSION to 7.2 in .env file , and run docker-compose build php-fpm,the build will fail with the following error

E: Unable to locate package jpegoptim
E: Unable to locate package pngquant
ERROR: Service 'php-fpm' failed to build: The command '/bin/sh -c if [ ${INSTALL_IMAGE_OPTIMIZERS} = true ]; then     apt-get install -y --force-yes jpegoptim optipng pngquant gifsicle ;fi' returned a non-zero code: 100

Expected behavior:

---

Reproduce:

docker-compose build php-fpm

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Relevant Code:

// place a code sample here

[pavel-mironchik]

Look at #1476

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

Hi again 👋 we would like to inform you that this issue has been automatically closed 🔒 because it had not recent activity during the stale period. We really really appreciate your contributions, and looking forward for more in the future 🎈.