# Unable to install Roundcube : possibly "due to a conflict with another app"

**URL:** https://forum.yunohost.org/t/unable-to-install-roundcube-possibly-due-to-a-conflict-with-another-app/42164
**Category:** Support apps
**Tags:** roundcube, english
**Created:** [May 1, 2026, 4:58am UTC](https://forum.yunohost.org/t/unable-to-install-roundcube-possibly-due-to-a-conflict-with-another-app/42164 "2026-05-01T04:58:06Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![ppr](https://forum.yunohost.org/letter_avatar_proxy/v4/letter/p/8c91f0/32.png) [@ppr](https://forum.yunohost.org/u/ppr)
#### Post date: [May 1, 2026, 6:53am UTC](https://forum.yunohost.org/t/unable-to-install-roundcube-possibly-due-to-a-conflict-with-another-app/42164/2 "2026-05-01T06:53:29Z")

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Hello,

It seems related to this :

> [@Can't upgrade or install roundcube: php8.5-cli : Depends: php8.5-readline but it is not going to be installed](https://forum.yunohost.org/t/cant-upgrade-or-install-roundcube-php8-5-cli-depends-php8-5-readline-but-it-is-not-going-to-be-installed/42130/2):
>
> sudo apt update sudo apt dist-upgrade Then try again. Basically APT cached some old version that no longer exists. If you get deb.sury.org key error see [Yarn and Sury APT keys issues](https://forum.yunohost.org/t/yarn-and-sury-apt-keys-issues/41617)

ppr

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