Problems using anything contained in the QNetwork Libraries

mythbusterma

Any time I try to use an object or function conatined in the QNetwork libraries, I get errors similar to the ones below

Using this code I get the following error message

@TestServer::TestServer(QObject *parent) :
QObject(parent) , tcpServer(0), networkSession(0)
{

QNetworkConfigurationManager manager;

if(manager.capabilities() & QNetworkConfigurationManager::NetworkSessionRequired) {

}

//manager.property()

tcpServer = new QTcpServer(this);

}@

@debug/testserver.o: In function TestServer': C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop_-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:7: undefined reference to imp___ZN28QNetworkConfigurationManagerC1EP7QObject'
C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:9: undefined reference to _imp___ZNK28QNetworkConfigurationManager12capabilitiesEv' C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop_-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:15: undefined reference to imp___ZN10QTcpServerC1EP7QObject'
C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:15: undefined reference to _imp___ZN28QNetworkConfigurationManagerD1Ev' C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop_-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:15: undefined reference to imp___ZN28QNetworkConfigurationManagerD1Ev'
C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:7: undefined reference to _imp___ZN28QNetworkConfigurationManagerC1EP7QObject' C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop_-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:9: undefined reference to imp___ZNK28QNetworkConfigurationManager12capabilitiesEv'
C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:15: undefined reference to _imp___ZN10QTcpServerC1EP7QObject' C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop_-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:15: undefined reference to imp___ZN28QNetworkConfigurationManagerD1Ev'
C:\Users\me\networktest-build-desktop-Qt_4_7_4_for_Desktop-_MinGW_4_4__Qt_SDK__Debug/../networktest/testserver.cpp:15: undefined reference to `_imp___ZN28QNetworkConfigurationManagerD1Ev'
collect2: ld returned 1 exit status
mingw32-make.exe[1]: *** [debug\networktest.exe] Error 1
mingw32-make.exe: *** [debug] Error 2
16:24:51: The process "E:\Qt\mingw\bin\mingw32-make.exe" exited with code 2.
Error while building project networktest (target: Desktop)
When executing build step 'Make'@

I have no idea what's causing the errors, and yes, "tcpServer" has already been declared

goetz

you need to add to your .pro file:

@
QT += network
@

mythbusterma

right..... I had it in my .pro as:

@QT += core gui
+= network@

instead of
@QT += core gui
QT += network@

thanks for your help