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E:The repository 'http://ppa.launchpad.net/clipgrab-team/ppa/ubuntu cosmic Release' does not have a Release file.
abu_bua
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John
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1 Answers1

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Welcome to askubuntu.com! That error shows up because repository doesn't provide packages for Ubuntu 18.10 (Cosmic Cuttlefish). The most recent release for which it provides packages is 18.04 Bionic Beaver.