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I have been getting following error while running sudo apt-get update

W: GPG error: https://download.01.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A902DDA375E52366
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_main_i18n_Translation-en
E: The package lists or status file could not be parsed or opened.

What should I do to fix this problem?

Also sometimes I get a red icon in the Task Bar pane.

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1 Answer 1

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You need to import the GPG key for that repository

Run the followings:

sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com A902DDA375E52366

sudo apt-get update

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