uname -m && uname -r && cat /etc/*release x86_64 4.15.0-10-generic DISTRIB_ID=Ubuntu DISTRIB_RELEASE=18.04 DISTRIB_CODENAME=bionic
dpkg -l|grep libcurl ii libcurl3-gnutls:amd64 7.58.0-2ubuntu2 amd64 easy-to-use client-side URL transfer library (GnuTLS flavour) ii libcurl4:amd64 7.58.0-2ubuntu2 amd64 easy-to-use client-side URL transfer library (OpenSSL flavour) ii libcurl4-gnutls-dev:amd64 7.58.0-2ubuntu2 amd64 development files and documentation for libcurl (GnuTLS flavour) Here is attempt to install opera browser sudo dpkg -i opera-stable_51.0.2830.55_amd64.deb Selecting previously unselected package opera-stable. (Reading database ... 228694 files and directories currently installed.) Preparing to unpack opera-stable_51.0.2830.55_amd64.deb ... Unpacking opera-stable (51.0.2830.55) ... dpkg: dependency problems prevent configuration of opera-stable: opera-stable depends on libcurl3 (>= 7.16.2); however: Package libcurl3 is not installed. dpkg: error processing package opera-stable (--install): dependency problems - leaving unconfigured Processing triggers for gnome-menus (3.13.3-11ubuntu1) ... Processing triggers for desktop-file-utils (0.23-1ubuntu3) ... Processing triggers for mime-support (3.60ubuntu1) ... Processing triggers for hicolor-icon-theme (0.17-1) ... Processing triggers for shared-mime-info (1.9-2) ... Errors were encountered while processing: opera-stable here is install libcurl3 ... Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt --fix-broken install' to correct these. The following packages have unmet dependencies: libcurl3 : Conflicts: libcurl4 but 7.58.0-2ubuntu2 is to be installed libcurl4 : Conflicts: libcurl3 but 7.58.0-2ubuntu2 is to be installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution). sudo apt --fix-broken install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following packages will be REMOVED: opera-stable -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754294 Title: After last updated libcurl3 on libcurl4, some apps are removed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/curl/+bug/1754294/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs