下载 Material fonts 一直失败是什么原因呢

[20131807liyu]

Failed to download
https://mirrors.tuna.tsinghua.edu.cn/flutter/flutter_infra_release/flutter/fonts/bd151aa3c2f7231344411a01dba4ef61b3cd56b
2/fonts.zip. Ensure you have network connectivity and then try again.
SocketException: OS Error: 信号灯超时时间已到
, errno = 121, address = mirrors.tuna.tsinghua.edu.cn, port = 59895

这个链接又是可以打开的

[AweiLoveAndroid]

一般是网络问题。多事几次就好了