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Always_populate_raw_post_data setting in PHP 5.6 & Magento 2.0
Does Magento 2 throw an error about always_populate_raw_post_data being set to 0? And are you having problems installing or updating Magento with PHP 5.6 and PHP 7? Then read on, because here is how to fix upgrades to Magento 2.0 in PHP 5.6 and higher: PHP 7+.