# The private key file is not defined in config/passbolt.php or not readable

**URL:** <https://community.passbolt.com/t/the-private-key-file-is-not-defined-in-config-passbolt-php-or-not-readable/5628>\
**Category:** Installation Issues\
**Created:** [July 23, 2022, 7:45pm UTC](https://community.passbolt.com/t/the-private-key-file-is-not-defined-in-config-passbolt-php-or-not-readable/5628 "2022-07-23T19:45:48Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![garrett](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.passbolt.com/garrett/32/545_2.png) [@garrett](https://community.passbolt.com/u/garrett)\
**Post date:** [July 24, 2022, 1:03pm UTC](https://community.passbolt.com/t/the-private-key-file-is-not-defined-in-config-passbolt-php-or-not-readable/5628/10 "2022-07-24T13:03:47Z")

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@yash Actually, the extension has been updated numerous times but your backend is way outdated and needs an upgrade.

Upgrading is what is needed, just like @remy said here [This key does not match any account - #20 by remy](https://community.passbolt.com/t/this-key-does-not-match-any-account/5587/20)

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_[View the full topic](https://community.passbolt.com/t/the-private-key-file-is-not-defined-in-config-passbolt-php-or-not-readable/5628)._