Error making example program

[Praise]

Hi all!

I am quite new to programming and to kdevelop, so I tried to build the basic 
qt application, made by the wizard, just to see how kdevelop works.
Sadly I have had this error:

...
c++ -O2 -O0 -g3 -Wall -fno-exceptions -fno-check-new -o prova provaview.o 
provadoc.o prova.o main.o provadoc.moc.o prova.moc.o provaview.moc.o 
prova_meta_unload.o /usr/lib/qt-2.3.1  -L/usr/X11R6/lib -L/usr/lib/qt2//lib 
-L/opt/kde2/lib /opt/kde2//lib/libkfile.so /opt/kde2//lib/libksycoca.so 
/opt/kde2//lib/libkio.so -L/opt/kde2//lib 
-L/usr/lib/gcc-lib/i486-suse-linux/2.95.2 -L/usr/i486-suse-linux/lib 
/opt/kde2//lib/libkdesu.so -lutil /opt/kde2//lib/libkssl.so 
/opt/kde2//lib/libkdeui.so /opt/kde2//lib/libkdecore.so -ldl 
/opt/kde2//lib/libDCOP.so -lXinerama -lstdc++ -lc -lgcc -lqt -lpng -lz -lm 
/usr/lib/libjpeg.so -lXext -lX11 -lSM -lICE -Wl,--rpath -Wl,/opt/kde2//lib 
-Wl,--rpath -Wl,/opt/kde2//lib -Wl,--rpath -Wl,/opt/kde2/lib -Wl,--rpath 
-Wl,/usr/lib/qt2//lib -Wl,--rpath -Wl,/usr/X11R6/lib
/usr/lib/qt-2.3.1: file not recognized: ? una directory
collect2: ld returned 1 exit status
make[2]: *** [prova] Error 1
make[2]: Leaving directory `/home/praise/prova32/prova'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/praise/prova32'
make: *** [all-recursive-am] Error 2

I have no idea to solve the problem, or to find some information on it. Could 
you help me a bit please?

TIA,
Praise

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