Error: [configdialog.o] Error 127

[enjoylifeonline]

I'm currently on fedora14.
[root@localhost ~]# ./qt-sdk-linux-x86-opensource-2010.05.1.bin

After I installed qt,I executed qtcreator.
[root@localhost bin]# ./qtcreator
I chose an example.But when I build all,it failed.It said":: error: [configdialog.o] Error 127".
I don't know why.
Any help will be appreciated.

[dialingo]

did you install g++ in addition to gcc?
make says error 127 when a needed executable is missing.
If this does not help, please post the complete output of creator.

[enjoylifeonline]

[quote author="dialingo" date="1299576468"]did you install g++ in addition to gcc?
make says error 127 when a needed executable is missing.
If this does not help, please post the complete output of creator.
[/quote]
Thank you.But after I installed g++,a new problem appeared.

/opt/qtsdk-2010.05/qt/examples/opengl/2dpainting-build-desktop/../../../include/QtOpenGL/qgl.h:77: error: GL/gl.h: No such file or directory