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Problem linux mate 19.3 software mgr- latest opera update

  • E: The package opera-stable needs to be reinstalled, but I can't find an archive for it.
    E: Internal error opening cache (1). Please report.

    W: Ignoring file 'signal-xenial.listsudo' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension

    I am running OS Linuxmint 19.3 Mate... with opera Version:77.0.4054.146
    In addition to the above which was copied from the Synaptic Manager, my software manager will not open - or uninstall/stall.. Recover was uneventful... Terminal says opera must reinstall but cannot locate an archive???
    Any help or thoughts are welcome

  • @dave1new Can't you download the installer?

  • @leocg
    I cannot even launch software manager from linux menu! And when I try to reinstall/uninstall using terminal I get similar notice described in problem....

  • download the Linux installer from Opera site.