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kite14
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Joined: 07 Nov 2006
Posts: 216
Location: Italy
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 Posted: Fri Feb 05, 2016 2:09 pm Post subject: [SOLVED] KDE Plasma and qtcore conflict |
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Hello,
I'm in the process of setting up a new installation with KDE 5 as desktop environment:
so far, I got to the point of a bootable box with the "plasma" profile enabled
(default/linux/amd64/13.0/desktop/plasma).
I'm following the KDE wiki and when I try to emerge kde-plasma/plasma-meta,
I run across the following conflict:
| Code: | !!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:
dev-qt/qtcore:5
(dev-qt/qtcore-5.4.2:5/5::gentoo, installed) pulled in by
~dev-qt/qtcore-5.4.2 required by (dev-qt/qtprintsupport-5.4.2:5/5::gentoo, installed)
^ ^^^^^
(and 10 more)
(dev-qt/qtcore-5.5.1:5/5::gentoo, ebuild scheduled for merge) pulled in by
>=dev-qt/qtcore-5.5.1:5 required by (kde-frameworks/frameworkintegration-5.18.0:5/5.18::gentoo, ebuild scheduled for merge)
^^ ^^^^^^^
>=dev-qt/qtcore-5.5.0:5 required by (kde-plasma/plasma-workspace-5.5.4:5/5::gentoo, ebuild scheduled for merge)
^^ ^^^^^^^
>=dev-qt/qtcore-5.5.0:5 required by (kde-plasma/kscreenlocker-5.5.4:5/5::gentoo, ebuild scheduled for merge) |
As you can see, the "plasma" profile pulls in qtcore-5.4.2 but when I try to install
the plasma packages, 3 of them require >=dev-qt/qt-core-5.5.0.
I have already tried to mask ~dev-qt/qt-core-5.5.1 and use the --backtrack option
(as suggested by portage), to no avail: any suggestions?
Which Qt library version should be used in a clean Plasma installation?
My emerge --info
Last edited by kite14 on Fri Feb 05, 2016 3:24 pm; edited 1 time in total |
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asturm
Developer
Joined: 05 Apr 2007
Posts: 8935
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| Posted: Fri Feb 05, 2016 2:28 pm Post subject: Re: KDE Plasma and qtcore conflict |
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| Code: | dev-qt/qtcore:5
(dev-qt/qtcore-5.4.2:5/5::gentoo, installed) pulled in by
~dev-qt/qtcore-5.4.2 required by (dev-qt/qtprintsupport-5.4.2:5/5::gentoo, installed)
^ ^^^^^
(and 10 more)
(dev-qt/qtcore-5.5.1:5/5::gentoo, ebuild scheduled for merge) pulled in by
>=dev-qt/qtcore-5.5.1:5 required by (kde-frameworks/frameworkintegration-5.18.0:5/5.18::gentoo, ebuild scheduled for merge)
^^ ^^^^^^^
>=dev-qt/qtcore-5.5.0:5 required by (kde-plasma/plasma-workspace-5.5.4:5/5::gentoo, ebuild scheduled for merge)
^^ ^^^^^^^
>=dev-qt/qtcore-5.5.0:5 required by (kde-plasma/kscreenlocker-5.5.4:5/5::gentoo, ebuild scheduled for merge) |
| kite14 wrote: | As you can see, the "plasma" profile pulls in qtcore-5.4.2 but when I try to install
the plasma packages, 3 of them require >=dev-qt/qt-core-5.5.0. |
No, actually that's not what you see here. 
All the kde-plasma/*-5.5.x packages pull in >=qtcore-5.5.1, but all the other Qt dependencies are pulled in without version requirement. That means some package pulls in qtprintsupport, and because you are using a stable system, the version available to portage is 5.4.2. However, you need to have all the Qt 5.x packages at the same version, so any packages at 5.4.2 should be added to your package.keywords to unmask 5.5.1. |
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kite14
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Joined: 07 Nov 2006
Posts: 216
Location: Italy
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| Posted: Fri Feb 05, 2016 2:50 pm Post subject: |
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genstorm,
thanks for your reply. I was not sure if keywording Qt 5.5.1 was the way to go...
anyway I will try now and report back... |
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kite14
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Posts: 216
Location: Italy
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| Posted: Fri Feb 05, 2016 3:27 pm Post subject: |
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Keywording Qt >=5.5 did the trick, thanks genstorm!
I had to manually remove all dev-qt/*-5.4.2 packages first, but it's working... |
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Holgermichl
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Joined: 08 Feb 2016
Posts: 1
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| Posted: Mon Feb 08, 2016 12:19 pm Post subject: |
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| kite14 wrote: | Keywording Qt >=5.5 did the trick, thanks genstorm!
I had to manually remove all dev-qt/*-5.4.2 packages first, but it's working... |
I do have the same issue. How do I do the keyowrding? |
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asturm
Developer
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Posts: 8935
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msst
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Joined: 07 Jun 2011
Posts: 259
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| Posted: Mon Feb 08, 2016 8:32 pm Post subject: |
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| Quote: | | thanks for your reply. I was not sure if keywording Qt 5.5.1 was the way to go... |
Yup, had the same recently. And initially I really tried to force it by simply compiling with --nodeps the few packages that tried to pull in >5.5.
Surprise: All compiled well and looked ok! But the kde desktop was not really starting. Then I allowed it to upgrade only some of the qt packages to 5.5.1. As only a few packages require qt-5.5 only a part of the qt stuff was upgraded and no conflicts any more reported. But it did not start the desktop anyway and upon a full recompile there were "conflicting version" errors.
So the solution was to remove all 5.4.2 packages and set everything from qt to 5.5.1. Then recompile the whole lot of kde-framework, plasma and apps. Grmpf.
That kde/qt stuff is bitchy. Requires a clean qt-5.5.1 basis and cleanly recompiled kde from the same versions currently. And hands off qt-5.6.0beta, that breaks a lot of stuff. Does not even compile. |
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kite14
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Posts: 216
Location: Italy
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| Posted: Mon Feb 08, 2016 9:58 pm Post subject: |
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| mas- wrote: | | So the solution was to remove all 5.4.2 packages and set everything from qt to 5.5.1. |
Yes, indeed, that's what I did. In case you need it, this is my keyword file for QT libraries → http://pastebin.com/s1A1gFrG |
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