Unable to access option "Updates and Upgrades" with error "Unable to connect": Some index files failed to download. They have been ignored, or old ones used instead

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    R Broersma (Edited )

    I have this error:

     

    W: GPG error: http://autoinstall.plesk.com/debian/PMM_0.1.10 jessie InRelease: The following signatures were invalid: 8BADC1A02FC9C07FB8C20EC0BD11A6AA914BDF7E

     

    But I have Debian Stretch:

    # cat /etc/debian_version
    9.9

     

    This issue can be remedied by installing "lsb-core". Without this package, lsb_release -a doesn't show any useful output and apparantly Plesk requires lsb-core to use the correct repository.

    Installing lsb-core and subsequently running the autoinstaller results in (in my case) 38 packages to be upgraded.

     

     

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    Dinara Aspembitova

    Hello @R Broersma,

    Try to check if Plesk extension repository files are still referencing Debian 8:
    ---------
    grep -ir jessie /etc/apt/*
    ---------

    If yes, rename Jessie to Stretch in the corresponding files.

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