我正在尝试使用通过软件包管理器进行安装下的steps在ubuntu 16.04上安装arangodb，但由于
我一直收到错误消息Err:1 https://download.arangodb.com/arangodb34/DEBIAN arangodb3 3.4.7-1 server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
E: Failed to fetch https://download.arangodb.com/arangodb34/DEBIAN/amd64/arangodb3_3.4.7-1_amd64.deb server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
我已尝试按照此question中所述重新安装证书：
sudo mkdir /usr/local/share/ca-certificates/cacert.org
sudo wget -P /usr/local/share/ca-certificates/cacert.org http://www.cacert.org/certs/root.crt http://www.cacert.org/certs/class3.crt
sudo update-ca-certificates
但是我仍然遇到相同的错误。