Fatal error: Class 'Magento\Framework\HTTP\Client_Curl' not found

[bvdooren]

$client  = Client::getInstance( 'curl' ); 

generates wrong class path on line 37 in class Magento\Framework\HTTP\Client.

Changing this line from this

$class = __CLASS__ . "_" . str_replace(' ', '/', ucwords(str_replace('_', ' ', $frontend)));

to this

$class = __CLASS__ . "\\" . str_replace(' ', '/', ucwords(str_replace('_', ' ', $frontend)));

seems to fix it.

[joanhe]

Thanks for reporting this issue. Internal ticket MAGETWO-39658 is created.

[okorshenko]

@bvdooren, thank you for reporting the issue. Internal ticket: MAGETWO-39658 has been closed and merged to develop branch. Please, let us know if you still have an issue