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getting Signature Key Error while running sudo apt-get update

in flag

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Hello, I am getting the error of Signature or Key, please refer to the attached screenshot (above link), please check & help me with how to solve it.

guiverc avatar
cn flag
Does this answer your question? [Google Chrome PPA upgrade invalid signature](https://askubuntu.com/questions/599112/google-chrome-ppa-upgrade-invalid-signature)
Dhaval Vira avatar
in flag
but in above screenshot, not only issue is with Google's Signature/Key, Skype for Linux is also there
karel avatar
sa flag
Does this answer your question? [invalid signatures EXPKEYSIG](https://askubuntu.com/questions/1129025/invalid-signatures-expkeysig)
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