Problem upgrading to Kali Rolling

[zdzdz]

I'm on Kali 2.0 (sana) and I try to upgrade to Kali Rolling. I do as described in the instructions:

cat << EOF > /etc/apt/sources.list
deb http://http.kali.org/kali kali-rolling main non-free contrib
EOF

apt-get update
apt-get dist-upgrade

But at the end I get 404 Not Found for some packages:

E: Failed to fetch http://http.kali.org/kali/pool/main/a/apt/apt-utils_1.2.2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/a/apt/libapt-pkg5.0_1.2.2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/a/apt/apt_1.2.2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/a/apt/libapt-inst2.0_1.2.2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/g/gnutls28/libgnutls30_3.4.8-2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/g/gnutls28/libgnutls-openssl27_3.4.8-2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/g/gnutls28/libgnutls30_3.4.8-2_i386.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/libt/libtheora/libtheora0_1.1.1+dfsg.1-7.1_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/libt/libtheora/libtheora0_1.1.1+dfsg.1-7.1_i386.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/c/chromaprint/libchromaprint0_1.2-2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/f/findutils/findutils_4.6.0-2_amd64.deb  404  Not Found

E: Failed to fetch http://http.kali.org/kali/pool/main/a/apt/apt-transport-https_1.2.2_amd64.deb  404  Not Found

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Where is the problem?