Laravel socialite issue cURL error 60: unable to get local issuer certificate using fb and google

Question

I am trying to test laravel socialite on wampserver i tried it on both google and facebook but it gives me the error:

cURL error 60: SSL certificate problem: unable to get local issuer certificate (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)

i followed the solution on Laravel Socialite testing on localhost, SSL certificate issue?

1: Laravel Socialite testing on localhost, SSL certificate issue? and Laravel 5.2 Socialite Facebook Login cURL error 60 but still the same problem is showing . Here is my code

 public function facebook()
    {
        return $this->socialite->with('facebook')->redirect();
    }

public function facebookCallback()
{
    $user = $this->socialite->with('facebook')->user();

   dd($user);

}
public function google()
{
    return $this->socialite->driver('google')->redirect();
}

public function googleCallback()
{
    $user = $this->socialite->driver('google')->user();


    dd($user);

}`

and my php.ini is: curl.cainfo ="D:/programs/wamp64/bin/php/cacert.pem.txt"I don't know what am i doing wrong.