Fix: The requested package... could not be found in any version (eZ Publish)
You can get this error in eZ Publish when using Composer:
Problem 1 - The requested package ezsystems/comments-bundle could not be found in any version, there may be a typo in the package name.
This error is caused by an issue with composer versioning: https://github.com/composer/composer/issues/4480
The fastest way around this is to download an alpha version of Composer and use that: https://getcomposer.org/download/1.0.0-alpha10/composer.phar