github - Unable to update composer in a Symfony project -

i imported symfony project github intellij idea. used usual method : https://www.jetbrains.com/help/phpstorm/2016.2/cloning-a-repository-from-github.html

now want update composer , start working. when type command line :

composer update 

i got error :

your configuration not allow connections http://packagist.org/packages.json... 

and can't continue. please i'm wrong ?

newer versions of composer not allow connections via unsecured http anymore default:

defaults true. if set true https urls allowed downloaded via composer. if absolutely need http access can disable it, using let's encrypt free ssl certificate better alternative.

source

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to resolve this, make sure use https connect repositories, or change composer config.