Following warnings are visible while initialising behat.
Package guzzle/common is abandoned, you should avoid using it. Use guzzle/guzzle instead. |
Package guzzle/stream is abandoned, you should avoid using it. Use guzzle/guzzle instead. |
Package guzzle/parser is abandoned, you should avoid using it. Use guzzle/guzzle instead. |
Package guzzle/http is abandoned, you should avoid using it. Use guzzle/guzzle instead. |
Unfortunately, last supported MinkExtension for Behat 2.5.x supports MinkGoutteDriver lower then required.