运行apt update时出现以下错误: E: Failed to fetch https://packages.microsoft.com/ubuntu/16.04/prod/dists/xenial/main/binary-amd64/Packages.bz2 Hash Sum mismatch E: Some index files failed to download. They have been ignored, or old ones used instead. 在有人认为这个问题已经回答之前,我已经尝试了所有给出的解决方案,但没有一个有效:我尝试过的解决方案: #solut