Fatal error: Uncaught Error: Class 'Cli' not found in /mnt/www/bin/magento:31

[mrtuvn]

Got this error when run php bin/magento inside container
How to fix it? I am using ubuntu 16.10 Composer created project successful

[maxbucknell]

How did you connect to the container? There are a few compatibility issues between alpine Linux and Magento 2, but I don't think that's what this is.

By the way. When you run Composer, you only have to say "composer", not "php composer". You have an error in your composer update line.

[mrtuvn]

i connect to container by bin/rd run then i run "composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition ." After that if i try to run php bin/magento then it show error not found

[maxbucknell]

Please exit servers/appserver/etc/php.ini to remove the line about auto_prepend_file and try again.

[mrtuvn]

ok it works

[maxbucknell]

You will now not be able to compile static assets. This is a known Magento issue (magento/magento2#8070).

But in the mean time, you can install an updated version of zend-stdlib. You need to put something like "zendframework/zend-stdlib": "2.x as 2.4.6".

I'll find the actual line when I get to work.

---

UPDATE

The line you need is:

"zendframework/zend-stdlib": "2.7.7 as 2.4.11"

I have observed no other adverse effects of this change.

[maxbucknell]

The solution here in the mean time is use a PHP container that is Debian based. It's on my list to do.