Apt-get crashes with : relocation error: libapt-pkg.so.4.12

apt

After running a simple upgrade I get a crash each time I try to use apt-get. Any command crashes with the same error message :

legaliz_me:~$ sudo apt-get
apt-get: relocation error: /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12: symbol DDDDDDDDDDDDDDDDDDDDDDDDDDDDDFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF_ZNSt6vectorIN3APT13Configuration10CompressorESaIS2_EE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPS2_S4_EERKS2_, version GLIBCXX_3.4 not defined in file libstdc++.so.6 with link time reference

Full log : http://pastebin.com/BmTE5erZ

I don't remember adding any crazy edger ppa or anything special with my system. I'm running 14.04 64bits. Is apt broken for any other person?

I had some corrupted dependency which may have prevented libc6 from updating. I checked the package version using :

$ dpkg -l apt libc6  libapt-pkg4.12:amd64
  libapt-pkg4.12:amd64       1.0.1ubuntu2 
  libc6:amd64                2.19-0ubuntu6
  libc6:i386                 2.19-0ubuntu6

I checked md5 of those packages and found that libapt-pkg4.12:amd64 was corrupted by comparing with another user.

$ md5sum /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12

Fixed it by manually installing libc6 and libapt-pkg4.12 from launchpad .deb packages : libapt-pkg4.12, libc6

sudo dpkg -i libc6_2.19-0ubuntu6_i386.deb libc6_2.19-0ubuntu6_amd64.deb libapt-pkg4.12_1.0.1ubuntu2_amd64.deb

After I forced the update so the old dependencies got updated

sudo apt-get -f upgrade

And now everything's fine.

Apt-get crashes with : relocation error: libapt-pkg.so.4.12

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