This also affects me as well, after upgrading from 14.04 to 16.04.1 Following troubleshooting methods do not help:
- removing and adding _apt user. - file permissions on /tmp directory -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1577926 Title: apt-key works fine, yet apt fails with "Could not execute 'apt-key'" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1577926/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
