Arch Linux

the8thcelljr

Member

Registered: 2016-12-19

Posts: 1

qtchooser and qt5-base are in conflict. Unable to downgrade qt5-base.

Trying to downgrade qt5-base for an application that requires an older version.

Downgrading qt5-base gives this:

[evan@arch pkg]$ sudo pacman -U qt5-base-5.6.0-6-x86_64.pkg.tar.xz 
loading packages...
warning: downgrading package qt5-base (5.7.0-9 => 5.6.0-6)
resolving dependencies...
warning: cannot resolve "qtchooser", a dependency of "qt5-base"
:: The following package cannot be upgraded due to unresolvable dependencies:
      qt5-base

:: Do you want to skip the above package for this upgrade? [y/N] n
error: failed to prepare transaction (could not satisfy dependencies)
:: qt5-base: requires qtchooser

Trying to install qtchooser to resolve this dependency problem gives this:

[evan@arch qtchooser]$ sudo pacman -U qtchooser-53-2-x86_64.pkg.tar.xz 
[sudo] password for evan: 
loading packages...
resolving dependencies...
looking for conflicting packages...
:: qtchooser and qt5-base are in conflict. Remove qt5-base? [y/N] n
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: qtchooser and qt5-base are in conflict

Seems circular to me. Not sure where to go from here. Any help is appreciated.

Scimmia

Fellow

Registered: 2012-09-01

Posts: 11,544

Re: qtchooser and qt5-base are in conflict. Unable to downgrade qt5-base.

You need to install them at the same time.

Many things will probably break, though. Partial updates are unsupported, so you're on your own when said breakage happens.