Why do I get the following error
Class PayPal\Types\Common\ResponseEnvelope not found.
when I have already imported all the files as below. and yes I tried to find something which says extends "PayPal\Types\Common\ResponseEnvelope " but didnt find.
// autoloading model and component classes
'import'=>array(
// Paypal version : PayPal Core SDK - V1.5.4 https://github.com/paypal/sdk-core-php
//https://github.com/paypal/sdk-core-php
//https://github.com/paypal/adaptivepayments-sdk-php
// 'application.vendor.PayPalMaster.lib.PayPal.Api.*',
'application.vendor.PayPalMaster.lib.PayPal.Auth.*',
'application.vendor.PayPalMaster.lib.PayPal.Common.*',
'application.vendor.PayPalMaster.lib.PayPal.Core.*',
'application.vendor.PayPalMaster.lib.PayPal.Exception.*',
'application.vendor.PayPalMaster.lib.PayPal.Handler.*',
'application.vendor.PayPalMaster.lib.PayPal.Rest.*',
'application.vendor.PayPalMaster.lib.PayPal.Transport.*',
'application.vendor.PayPalMaster.lib.PayPal.Formatter.*',
'application.vendor.PayPalMaster.lib.PayPal.IPN.*',
'application.vendor.PayPalMaster.lib.PayPal.Types.*',
// 'application.vendor.PayPalMaster.lib.PayPal.Validation.*',
'application.vendor.PayPalMaster.lib.PayPal.PaypalinterfaceService.*',
// Paypal library for adaptive payments
'application.vendor.PayPalMaster.lib.PayPal.Service.*',
'application.vendor.PayPalMaster.lib.PayPal.Types.AP.*',
'application.vendor.PayPalMaster.lib.PayPal.Types.Common.*',
),
Pls help 