how to get undertanding

@muragijimana you will have to show us some code. Please take a look at the Guidelines for posting on Laracasts.com. I can of course look into the package myself, but rather than all of us going through the process guessing and trying to replicate the setup you have, it is much easier if you show us.

here is my code <?php namespace StrimUp\Http\Controllers; use Youtube; class WelcomeController extends Controller {

public function __construct()
{
    $this->middleware('guest');
}

public function index()
{
    $videoList = Youtube::searchVideos('Android');
    return view('welcome');
}

}

Try it with curl -k or curl --insecure

and i include auth key in app/config

What version are you using? What did you pull in via composer.json?

If you're on windows this looks like a problem with you curl installation.

Here are some resources to solve this issue

http://stackoverflow.com/questions/9507353/steps-to-setup-curl-in-windows
http://guides.instructure.com/s/2204/m/4214/l/83393-how-do-i-install-and-use-curl-on-a-windows-machine
http://superuser.com/questions/134685/run-curl-commands-from-windows-console
http://www.confusedbycode.com/curl/
http://stackoverflow.com/questions/949959/why-do-64-bit-dlls-go-to-system32-and-32-bit-dlls-to-syswow64-on-64-bit-windows