Can't Make LXSession-Edit

[Mark]

I get this error and I've no idea what to do with it

make[1]: *** No rule to make target `data/lxsession-edit.ui', needed by `all-am'. Stop.
make[1]: Leaving directory `/home/mark/lxsession-edit-0.1.1'
make: *** [install-recursive] Error 1

[slimtop]

Is it the latest svn? Did you do; sh autogen.sh and ./configure --prefix=/usr first?