title: AttributeError: 'NoneType' object has no attribute 'send'
body: <p>I want to send a message to a specific channel, I followed the steps of discord on how to do it I followed their steps correctly but it aint work.
  Here is the steps I followed <a href="http://discordpy.readthedocs.io/en/rewrite/faq.html#how-do-i-send-a-message-to-a-specific-channel" rel="nofollow noreferrer">http://discordpy.readthedocs.io/en/rewrite/faq.html#how-do-i-send-a-message-to-a-specific-channel</a></p>
  
  <p>and here is my code: </p>
  
  <pre><code>@bot.event
  async def on_member_join(member):
      print("A member just joined and his name is" + member.name)
      general = bot.get_channel(466675715333554179)
      mid = member.id
      await general.send('Welcome &lt;@%s&gt; to OnePlix server, I am Cooler!' % (mid))
  </code></pre>