synaptic error

[0day]

Failed to fetch xz:/var/lib/apt/lists/partial/ftp.us.debian.org_debian_dists_experimental_main_binary-i386_Packages  Hash Sum mismatch
Failed to fetch bzip2:/var/lib/apt/lists/partial/ftp.us.debian.org_debian_dists_experimental_main_i18n_Translation-en  Hash Sum mismatch
Some index files failed to download. They have been ignored, or old ones used instead.

[VastOne]

This happens occasionally, there may be servers at Debian being updated or slow links

All you have to do is wait a bit and try again and it resolves