Fatal error: require_once autoload_real.php

I just downloaded piwik form Get Piwik - Analytics Platform - Matomo (assuming version 2.14.2 ) and I’m following Installing Piwik - Analytics Platform - Matomo.

When I copy it to the appropriate directory (in my case /MyUniquePath/) and try and run it i get the following error.

[2015-07-29 10:52:18.824416] [error] PHP Fatal error: require_once(): Failed opening required ‘/MyUniquePath/vendor/composer/autoload_real.php’ (include_path=’.:/usr/share/php:/usr/share/pear’) in /MyUniquePath/vendor/autoload.php on line 5

Is this a known issue, or am I doing something wrong?

Never mind, the issue was that the copy over didn’t get everything.