# Error occurred during the signature verification **URL:** \ **Category:** NXP i.MX8M Plus\ **Tags:** iMX8M-plus\ **Created:** [April 19, 2023, 8:31am UTC](https://community.solid-run.com/t/error-occurred-during-the-signature-verification/627 "2023-04-19T08:31:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![rudy.barbieri](https://avatars.discourse-cdn.com/v4/letter/r/ce73a5/32.png) [@rudy.barbieri](https://community.solid-run.com/u/rudy.barbieri)\ **Post date:** [April 19, 2023, 8:31am UTC](https://community.solid-run.com/t/error-occurred-during-the-signature-verification/627/1 "2023-04-19T08:31:35Z")
today I start getting this error: sudo apt-get update > The following signatures were invalid: EXPKEYSIG 652CD31D2C8DF3D0 BSP:Generic OBS Project > The following signatures were invalid: EXPKEYSIG E15EAD0968576D90 BSP:IMX8 OBS Project > E: The repository ‘[Index of /debian-security](http://security.debian.org/debian-security) bullseye/updates Release’ does not have a Release file. > N: Updating from such a repository can’t be done securely, and is therefore disabled by default. > W: An error occurred during the signature verification. The repository is not updated and the InRelease: The following signatures were invalid: EXPKEYSIG 652CD31D2C8DF3D0 BSP:Generic OBS Project my board is SRMM8QDW0GD02GE008U01CH I can’t paste the full output 'cause the forum block the message if it contain more than one http link ---
**Author:** ![spoonbill](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/spoonbill/32/207_2.png) [@spoonbill](https://community.solid-run.com/u/spoonbill)\ **Post date:** [May 18, 2023, 1:20pm UTC](https://community.solid-run.com/t/error-occurred-during-the-signature-verification/627/3 "2023-05-18T13:20:53Z")
I fixed it in this way: wget -nv [https://repo.solid-build.xyz/debian/bullseye/bsp-any/Release.key](https://repo.solid-build.xyz/debian/bullseye/bsp-any/Release.key) -O Release.key sudo apt-key add - \< Release.key sudo apt-get update