Fix invalid abstract method call in start command.

Author: noplanman

CHANGELOG.md

@@ -11,6 +11,7 @@ Exclamation symbols (:exclamation:) note something of importance e.g. breaking c
 ### Deprecated
 ### Removed
 ### Fixed
+- Execution of `/start` command without any custom implementation.
 ### Security
 
 ## [0.61.1] - 2019-11-23

src/Commands/UserCommands/StartCommand.php

@@ -13,7 +13,7 @@
 
 use Longman\TelegramBot\Commands\UserCommand;
 use Longman\TelegramBot\Entities\ServerResponse;
-use Longman\TelegramBot\Exception\TelegramException;
+use Longman\TelegramBot\Request;
 
 /**
  * Start command
@@ -38,20 +38,19 @@ class StartCommand extends UserCommand
     /**
      * @var string
      */
-    protected $version = '1.1.0';
+    protected $version = '1.2.0';
 
     /**
      * Command execute method
      *
      * @return ServerResponse
-     * @throws TelegramException
      */
     public function execute()
     {
         //$message = $this->getMessage();
         //$chat_id = $message->getChat()->getId();
         //$user_id = $message->getFrom()->getId();
 
-        return parent::execute();
+        return Request::emptyResponse();
     }
 }