在ubuntu執行repo init的時候報了repo init報error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed這種錯誤，解決方法是需要更新本地證書。問題現象以及解決方法如下所示：

1 repo init出錯的信息

Downloading Repo source from https://mirrors.tuna.tsinghua.edu.cn/git/git-repo
fatal: Cannot get https://mirrors.tuna.tsinghua.edu.cn/git/git-repo/clone.bundle
fatal: error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1131)
fatal: double check your --repo-rev setting.
fatal: cloning the git-repo repository failed, will remove '.repo/repo'

2 解決方法

• 安裝證書
• 更新本地證書

sudo apt install ca-certificates
sudo update-ca-certificates --fresh
export SSL_CERT_DIR=/etc/ssl/certs