[SOLVED] Qt 4.7.0 0.9.0 : Problem of unresolved symbols

Bonjour,
I have downloaded and installed the last Qt 4.7.0 0.9.0 release from
http://sourceforge.net/projects/qtamigaosnative/

But I don't succeed to start a sample program.

For example, for bin/qtdemo, I obtain a requester saying
"Unable to resolve symbol '_Z10qt_dprintfPKc'"

and for demos/affine, I obtain
"Unable to resolve symbol '_ZNK7QWidget8rastportEv'"

Before to install I had a previous version of Qt that I have removed from User-Startup and deleted the drawer.

Is somebody knows how to resolve this,problem ?
Thanks by advance

Sorry, my fault...

I had 3 old libQtCore.so LibQtGui.so and libQtNetwork.so in my SObjs drawer.

After to have deleted them, it launchs well.

Time to test !