I tried to install opera by downloading the
.deb file from opera website. Running
sudo dpkg -i opera-stable_44.0.2510.1218_amd64 gave the following results:
[sudo] password for user1: (Reading database ... 187300 files and directories currently installed.) Preparing to unpack opera-stable_44.0.2510.1218_amd64.deb ... Unpacking opera-stable (44.0.2510.1218) ... dpkg-deb (subprocess): decompressing archive member: lzma error: compressed data is corrupt dpkg-deb: error: subprocess <decompress> returned error exit status 2 dpkg: error processing archive opera-stable_44.0.2510.1218_amd64.deb (--install): cannot copy extracted data for './usr/lib/x86_64-linux-gnu/opera/opera' to '/usr/lib/x86_64-linux-gnu/opera/opera.dpkg-new': unexpected end of file or stream Processing triggers for bamfdaemon (0.5.3+17.04.20170406-0ubuntu1) ... Rebuilding /usr/share/applications/bamf-2.index... Processing triggers for gnome-menus (3.13.3-6ubuntu5) ... Processing triggers for desktop-file-utils (0.23-1ubuntu2) ... Processing triggers for mime-support (3.60ubuntu1) ... Processing triggers for hicolor-icon-theme (0.15-1) ... Processing triggers for shared-mime-info (1.8-1) ... Processing triggers for menu (2.1.47ubuntu1) ... Errors were encountered while processing: opera-stable_44.0.2510.1218_amd64.deb"
Opera is currently not available in Ubuntu software store or in Software Boutique. I also tried older
opera-stable_44.0.2510.857_amd64.deb and got similar results. I downloaded the package twice thinking it might be any download error but same result.