I am running ubuntu 19.04 (disco) in the latest VirtualBox and all was running fine until I tried to upgrade
LBLIBCXX_3.4.21 to fix the error below. I used
dpkg to force install
lib64stdc++6_9.1.0-2ubuntu2_19.04_i386.deb. Then after reading it complain about
gcc-9-base being out of date, I tried
apt install gcc-9-base that only returns the following error message.
ImportError: /lib/x86_64-linux-gnu/libapt-pkg.so.5.0: symbol _ZTVNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEE version GLIBCXX_3.4.21 not defined in file libstdc++.so.6 with link time reference
I tried the following suggestions but could not find a solution: https://askubuntu.com/questions/777803/apt-relocation-error-version-glibcxx-3-4-21-not-defined-in-file-libstdc-so-6
What do I need to do to get
apt install working again?