The reason is this:
/home/ku_green/.swt/lib/linux/x86/libswt-pi-gtk-4403.so: libgtk-x11-2.0.so.0: cannot open shared object file: No such file or directory
SWT requires the GTK libraries, but they are not present on your system. Specifically, libgtk-x11-2.0.so.0
could not be found.
You will need to install this system library using yum
.
First locate the package which contains the library:
yum whatprovides */libgtk-x11-2.0.so.0
Then install the package that it indicates.
yum install gtk2