composer laravel install: “http://packagist.org” file could not be downloaded

Question

I want to install laravel 2.2 through composer with

$ composer create-project --prefer-dist laravel/laravel sampleBackend 5.2

but every time i do that composer shows a message:

The "http://packagist.org/p/provider-2014%2490c266c2df21924a932e564b7f39bf03d55b933fbe43744a6056eab59b7b4cf9.json" file could not be downloaded: failed to open stream: HTTP request failed! http://packagist.org could not be fully loaded, package information was loaded from the local cache and may be out of date

Answer 1

Clear composer cache first by running

composer clear-cache

Then run this command

composer -vvv

This solution worked for me when I was trying to install laravel.