There's a problem when youtube-dl works with aria2 and proxy

[JaydenXII]

Checklist

• [Y] I'm asking a question
• [Y] I've looked through the README and FAQ for similar questions
• [Y] I've searched the bugtracker for similar questions including closed ones

Question

WRITE QUESTION HERE

C:\Users\Jayden\Desktop>youtube-dl -f best https://www.youtube.com/watch?v=7wfUUZvybPY
[youtube] 7wfUUZvybPY: Downloading webpage
[download] Destination: How to Install YouTube-DL (Windows 10)-7wfUUZvybPY.mp4

08/28 17:22:34 [NOTICE] Downloading 1 item(s)
[#f57477 0B/0B CN:1 DL:0B]

--external-downloader aria2c
--external-downloader-args '--http-proxy="127.0.0.1:10808" -x 16 -j 16 -k 1M'

I'm in China and I need proxy. When I downloads videos from youtube the error showed in the first code block happened. I've read the issue submitted before and I'm sure that http mode is applied. And when I download videos from Chinese websites it works totally fine without proxy. And it works either when I don't use aria2. I'm using v2rayN in Global mode, which means "Open http proxy and set system proxy". And the configuration is in the second file. I don't find any similar case and have no idea what to do. Could anyone help me?