Open url on an external browser on button click in a Qt application
c++, qt4
Solution
You forgot to include QUrl, as only a forward declaration exists.
Use either `#include <QUrl>` or `#include <QtCore>` at the top of your file.
Problem
My application should contains a button which when you click on it an external browser should be opened here is my code ``` void Logindialog::on_inscriptionPushButton_clicked() { QDesktopServices::openUrl(QUrl("http://www.google.com", QUrl::TolerantMode)); } ``` but when i compile i get this list of errors - error: incomplete type 'QUrl' used in nested name specifier - error: invalid use of incomplete type 'class QUrl' - error: forward declaration of 'class QUrl'