Qt3 to Qt4

Hello experts,
I had a simple charting program that was written in qt3, now i converted it to qt4 through qt3to4 and compiled that. while running, appear a Segmentation fault error.but note is, why? :wink: pleasehelp me:cool:.

Are you sure to build all libraries and resources in your project ?

Best regards,

Iliyan Varshilov