How to install QtQuick.Window version 2.2

[houmingc]

root@ubuntu:/home/ste/Desktop# sudo ./untitled1
QML debugging is enabled. Only use this in a safe environment.
QQmlApplicationEngine failed to load component
qrc:///main.qml:3 module "QtQuick.Window" version 2.2 is not installed

[sierdzio]

QtQuick.Window version 2.2 is part of Qt 5.4.0 release, so you need that for it to work (or downgrade to 2.1).

[houmingc]

i just install Qt5.4.0 yesterday. what is the command to download QtQuick.Window version 2.2

[sierdzio]

It is already included in Qt 5.4. If you have it installed, you also have QtQuick.Window version 2.2. There is no need to download anything more.

[houmingc]

But when i run QML Qt example. it prompted informing me
“QtQuick.Window” version 2.2 is not installed

[sierdzio]

Something must be wrong, then. Are you running the example from within Qt Creator or standalone?

[houmingc]

yes, i am running the example from within Qt Creator

[sierdzio]

Weird. QtC usually makes sure that the whole Qt environment is properly linked and set-up for development.

[JKSH]

What kit are you using to build and run the project?

Open the project, and click on the "Debug"/"Release" button on the bottom-left (above the green "Run" arrow). This will show your kit -- it should be something like "Desktop Qt 5.4.0 MinGW 32bit"