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

Question

I want to install laravel through composer with :

$ composer create-project --prefer-dist laravel/laravel DemoTest

but every time i do that composer shows a message:

[Composer\Downloader\TransportException] The "http://packagist.org/p/provider-2013%244440cd3f9b7aec0de3e4f3486e61b7e348d74d03a0bd6a61b5b8a514e105 2c4d.json" file could not be downloaded: failed to open stream: HTTP request failed!

Answer 1

Can you try

composer clear-cache

then

composer -vvv

after that try running the install command for laravel, it worked for me though