I have just cloned Calendar app from apps/core/preloaded/calendar. Following is my .gbs.conf file.
 

[general]
tmpdir=/var/tmp/
profile = profile.tizen2.2
work_dir=.

[repo.tizen2.2]
url = http://download.tizen.org/releases/2.2/tizen-2.2/

[profile.tizen2.2]
repos=repo.tizen2.2

When I try to build the rpm, I am getting below error and the build is stopped. Following are last few lines around the error

  41s] extracting debug info from /home/abuild/rpmbuild/BUILDROOT/org.tizen.calendar-0.6.22-1.i386/usr/apps/org.tizen.calendar/bin/calendar
[   41s] extracting debug info from /home/abuild/rpmbuild/BUILDROOT/org.tizen.calendar-0.6.22-1.i386/usr/ug/lib/libug-calendar-detail-efl.so
[   41s] extracting debug info from /home/abuild/rpmbuild/BUILDROOT/org.tizen.calendar-0.6.22-1.i386/usr/ug/lib/libug-calendar-edit-efl.so
[   41s] extracting debug info from /home/abuild/rpmbuild/BUILDROOT/org.tizen.calendar-0.6.22-1.i386/usr/ug/lib/libug-calendar-efl.so
[   42s] extracting debug info from /home/abuild/rpmbuild/BUILDROOT/org.tizen.calendar-0.6.22-1.i386/usr/ug/lib/libug-calendar-settings-efl.so
[   42s] 2350 blocks
[   42s] + /usr/lib/rpm/check-buildroot
[   42s] + /usr/lib/rpm//brp-compress
[   42s] + /usr/lib/rpm/brp-strip-static-archive /usr/bin/strip
[   42s] + /usr/lib/rpm/brp-strip-comment-note /usr/bin/strip /usr/bin/objdump
[   43s] + /usr/lib/rpm/brp-python-bytecompile
[   43s] + /usr/lib/rpm/brp-python-hardlink
[   43s] + /usr/lib/rpm/tizen/find-docs.sh /home/abuild/rpmbuild/BUILDROOT/org.tizen.calendar-0.6.22-1.i386
[   43s] Processing files: org.tizen.calendar-0.6.22-1.i586
[   43s] Aptk: PG1hbmlmZXN0PgoJPHJlcXVlc3Q+CgkJPGRvbWFpbiBuYW1lPSJfIi8+Cgk8L3Jl
[   43s] cXVlc3Q+Cgk8YXNzaWduPgoJCTxmaWxlc3lzdGVtIHBhdGg9Ii91c3IvYXBwcy9v
[   43s] cmcudGl6ZW4uY2FsZW5kYXIvZGF0YSIgbGFiZWw9IlVzZXIiIC8+Cgk8L2Fzc2ln
[   43s] bj4KPC9tYW5pZmVzdD4K
[   43s]
[   43s] error: File must begin with "/": Flora
[   43s] error: File must begin with "/": LICENSE.Flora
[   43s]
[   43s]
[   43s] RPM build errors:
[   43s]     File must begin with "/": Flora
[   43s]     File must begin with "/": LICENSE.Flora

I have tried several times redoing the set up. no luck. Just for the information I am able to build Memo ( cloned from apps/home/memo ) application without problem.

Any help would be greately appreciated.