QtQuick version 2.11 not installed.
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Re: module "QtQuick" version 2.11 is not installed
I'm having an identical issue to this forum. I'm running on Ubuntu 18.04. I recently installed KDE Plasma and then installed the SDDM theme "Sugar-candy". When I go to the logon screen I get the error:
"QtQuick" version 2.11 is not installed.
I installed Qt via the linux downloader/installer, choosing gcc_64 and put it in the directory "/opt/Qt". I can open QtCreator and build the example files with no issues. This includes example programs where I replace "import QtQuick 2.0" with "import QtQuick 2.11". So I believe I do indeed have QtQuick 2.11 installed.
I also ran "qmake -v" in terminal and got back "Qt version 5.13.1". So everything checks out.
The strange thing is that when I edit the Main.qml file in the SDDM theme from:
"import QtQuick 2.11" to "import QtQuick 2.9",
it has no issues finding 2.9. It then throws "QtQuick.Layouts 1.11" not installed. I'm not sure why it's finding older versions of QtQuick, but perhaps this will help reveal what's going on. I tried to directly link the import file with QtQuick in it via:
import "/path/to/QtQuick.2
But it lead no where. Started throwing the error, "failed to load plugin from qtquickcontrolsplugin" (or something to that extent).
On a final note, I know the last thread ended in sierdizo encouraging oltem4682 to ask on SDDM forums. I found that forum post aswell and it appears they sent them back to Qt. So I'm trying again here hoping the further debugging I did will shed some light.
Thanks in advance and let me know what other info I can provide!
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Me again ;-) I suppose that SDDM is using system-installed Qt, not the one you installed manually. Check your OS version with:
sudo apt list | grep qt5Another thing: Ubuntu has a dedicated KDE distribution called Kubuntu - perhaps install that instead of adding plasma to normal Ubuntu? Alternatively, there is also KDE Neon, which is based on Ubuntu 18.04 but always includes newest Plasma release.
