I managed to fix different points & it works. Here are some references :
https://github.com/symfony/flex/issues/130
https://github.com/hwi/HWIOAuthBundle/pull/1309
added manually : https://github.com/hwi/HWIOAuthBundle/pull/1309/files/32e618137a4705a3b555c41261a9b90b11584b48..9db7429a6e7c4dd03df3645edcf988826f56b8c3