Fetched 117 MB in 4min 7s (473 kB/s)
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/h/heimdal/libgssapi3-heimdal_1.7~git20150920+dfsg-4ubuntu1_amd64.deb  Hash Sum mismatch
   Hashes of expected file:
    - SHA256:516a70d9c5a0aab7fe453b1fb1fd6c6431b1d879a04a5caa29865a4376b0bf42
    - SHA1:5705abc07f4e4461109e9f3b56557b7e63fc9f75 [weak]
    - MD5Sum:0c9467b00d258e3175addbb5a16fdc72 [weak]
    - Checksum-FileSize:96084 [weak]
   Hashes of received file:
    - SHA256:2905564aea9ecf1d674eb2e64651a47a0d7457774fa09b00311494e6250bd7fe
    - SHA1:010279fec64276e7aacd6ca540a8d22ee80bebec [weak]
    - MD5Sum:d9113c75b236b351e0764776a963bafb [weak]
    - Checksum-FileSize:24315 [weak]
   Last modification reported: Wed, 27 Jan 2016 18:00:36 +0000
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?