You are trying to install a i386 lib on a amd64 system. And this isn't supported (yet?) for libc++
** Changed in: llvm-toolchain-7 (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1810056 Title: 4package libc++abi1-7 1:7-3~ubuntu0.18.04.1 failed to install/upgrade: trying to overwrite shared '/usr/lib/llvm-7/lib/libc++abi.so.1.0', which is different from other instances of package libc++abi1-7:i386 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/llvm-toolchain-7/+bug/1810056/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs