Full error message


Running build steps for project MyProject...

Configuration unchanged, skipping QMake step.

Starting: /usr/bin/make -w 

make: Entering directory '/MyProjectFolder'

make: Nothing to be done for 'first'.

make: Leaving directory '/MyProjectFolder'

Exited with code 0.

Cause

IDE: Qt Creator 1.2.1

Compiler: G++ 4.4.1

Project type: Qt4 Console Application

MyProject.pro code:


#-------------------------------------------------

#

# Project created by QtCreator 2010-04-24T14:22:38

#

#-------------------------------------------------

TARGET = MyProject

CONFIG   += console

CONFIG   -= app_bundle

TEMPLATE = app

SOURCES += main.cpp

main.cpp code:


#include <QtCore/QCoreApplication>

#include <QGraphicsScene>

#include <QGraphicsView>



int main()

{

  QGraphicsScene scene;

  scene.addText("Hello, world!");



  QGraphicsView view(&scene);

  while (1) 

  {

    view.show();

  }

}

Application output


Starting /MyProject...



The program has unexpectedly finished.

The project had already run once.

Solution

This qmake error might not be an error. Configuration unchanged, skipping QMake step denotes that the makefile needs not to be recreated, because nothing in its configuration has changed.

After removing the makefile the following compile output (re)appears:


Running build steps for project MyProject...

Starting: /usr/bin/qmake-qt4 /MyProject.pro -spec /usr/share/qt4/mkspecs/linux-g++ -r CONFIG+=debug 

Exited with code 0.

Starting: /usr/bin/make -w 

make: Entering directory '/MyProjectFolder'

g++ -c -pipe -g -Wall -W -D_REENTRANT -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -o main.o main.cpp

g++ -o MyProject main.o -L/usr/lib -lQtGui -lQtCore -lpthread

make: Leaving directory '/MyProjectFolder'

Exited with code 0.

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