QLabel class missing.

skymemory

Hi, I have been coding in C++ for quite a while, but am new to Qt, just wrote a few apps following various tutorial materials. But at the moment, I seem to have a problem that I couldn't include the header file QLabel. I am using Qt creator 3.0, based on Qt 5.2.1., and it was an empty project.

relevant code is as follow, thanks for help!

#include <QLabel>
....
QLabel *label = new QLabel("....");
...

The error after compilation simply goes as "QLabel: No such file or directory."

IamSumit

hii and welcome to devnet,

in your .pro file add QT +=gui

hope it helps.

andreyc

I guess you need to add "widgets" to QT variable in your .pro file

@
QT += widgets
@

andreyc

[quote author="IamSumit" date="1396586844"]hii and welcome to devnet,

in your .pro file add QT +=gui

hope it helps.
[/quote]

In Qt5 the gui and core modules are "included by default":http://qt-project.org/doc/qt-5/qmake-variable-reference.html#qt

skymemory

[quote author="andreyc" date="1396586935"]I guess you need to add "widgets" to QT variable in your .pro file

@
QT += widgets
@
[/quote]

Thanks,it worked. How wicked...can you explain a bit as for why please?

SGaist

Hi,

It's because the widgets have been move to their own module in Qt 5