报错如下

info: A new version of repo is available
repo: Updating release signing keys to keyset ver 2.3
warning: 'refs/heads/v2.20-8-g8e91248' is not signed; falling back to signed release 'v2.20'
warning: Skipped upgrade to unverified version
repo sync has finished successfully.

下载最新版本

curl https://storage.googleapis.com/git-repo-downloads/repo > ~/.bin/repo

然后删除 重新拉取