现在下载会报错
allwinner@allwinner-VirtualBox:~/tina-v853-open$ repo init -u https://sdk.aw-ol.com/git_repo/V853Tina_Open/manifest.git -b master -m tina-v853-open.xml
Downloading Repo source from https://mirrors.bfsu.edu.cn/git/git-repo
remote: Counting objects: 3, done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 3 (delta 0), reused 0 (delta 0)
Unpacking objects: 100% (3/3), 1.41 KiB | 1.41 MiB/s, done.
repo: error: unable to resolve "stable"
fatal: double check your --repo-rev setting.
fatal: cloning the git-repo repository failed, will remove '.repo/repo'
allwinner@allwinner-VirtualBox:~/tina-v853-open$