i dont have Aggregate Device on my mac and i cant import audio from video file Video decode not responding in my activity monitor
Hi,
Please see this Knowledge Base Article.
i see but its not helping nothing there to help me just say that its a known problem.
but thanks anyway 
Yes, this is known problem, but it doesn’t affect the functionality. So don’t worry, about this. This is the message. 
Im Trying to Import audio from video and nothing happen so this is pretty disturbing but hope for fix soon