clarkwinkelmann
I think that might not work the way you hope..
composer require zendframework/zend-stratigility:1.2.1
If using space between package and version you have to quote it:
e.g. foo/bar or foo/bar:1.0.0 or foo/bar=1.0.0 or "foo/bar 1.0.0"
Usage:
require [options] [--] [<packages>]...
Arguments:
packages Required package name optionally including a version constraint, e.g. foo/bar or foo/bar:1.0.0 or foo/bar=1.0.0 or "foo/bar 1.0.0"
