specfile generates "error: no source number 1". Why?

[Mihamina Rakotomandimby]

Hi,
The attached specfile make rpmbuild to say
	"error: no source number 1"
I dont understand why.
Would you know?

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%define python_minver 2.4
%define zope_minver 2.8

%define zope_home      %{_libdir}/zope
%define software_home  %{zope_home}/lib/python

Name:           plone
Version:        2.1.4
Release:        1%{?dist}
Summary:        User friendly and powerful open source Content Management System
License:        GPL
Group:          System Environment/Daemons
URL:            http://www.plone.org/
Source0:       	http://dl.sf.net/plone/Plone-2.1.4.tar.gz

BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)

Requires:       zope >= %{zope_minver}
Requires:       python >= %{python_minver}, python-imaging

%description
 Plone is a user friendly and powerful content management system based on Zope.
 It is easy to use, translated into over 30 languages and carefully follows
 standards. It s under active development and easily extensible with add-on
 products.

%prep
%setup -q -n Plone-%{version} -a 1
# Clean up sources
find . -type d -name CVS | xargs rm -rf
find . -type f -name .cvsignore | xargs rm -rf
find . -type d -name .svn | xargs rm -rf
find . -type f -name "*~" | xargs rm -rf


%install
rm -rf $RPM_BUILD_ROOT

mkdir -p $RPM_BUILD_ROOT%{software_home}/Products
cp -pr * $RPM_BUILD_ROOT%{software_home}/Products
rm -rf $RPM_BUILD_ROOT%{software_home}/Products/BTreeFolder2
rm -f $RPM_BUILD_ROOT%{software_home}/Products/README.txt
rm -f $RPM_BUILD_ROOT%{software_home}/Products/CONTENTS.txt


%clean
rm -rf $RPM_BUILD_ROOT


%post
if [ "$1" -ge "2" ]; then # upgrade
    /sbin/service zope condrestart >/dev/null 2>&1
fi


%files
%defattr(644,root,root,755)
%doc README.txt CONTENTS.txt
%{software_home}/Products/*


%changelog

* Thu Dec 07 2006 Mihamina Rakotomandimby <mihamina at rktmb.org> 2.1.4-1
- Version 2.1.4
- Remove Hotfix

* Thu Apr 13 2006 Aurelien Bompard <gauret[AT]free.fr> 2.1.2-2
- apply Plone Hotfix 2006-04-10 to fix CVE-2006-1711
- restart Zope on upgrade (will migrate it to %%postun for the
  next release, but we need to make sure zope is restarted for
  this one (security)

* Wed Feb 22 2006 Aurelien Bompard <gauret[AT]free.fr> 2.1.2-1
- version 2.1.2

* Sat Oct 22 2005 Aurelien Bompard <gauret[AT]free.fr> 2.1.1-1
- version 2.1.1

* Thu Sep 08 2005 Aurelien Bompard <gauret[AT]free.fr> 2.1-1
- version 2.1 final

* Thu Aug 11 2005 Aurelien Bompard <gauret[AT]free.fr>
- rebuild

* Thu Aug 11 2005 Aurelien Bompard <gauret[AT]free.fr> 2.1-0.3.rc2
- update to rc2
- drop buildarch: noarch since _libdir depends on arch (on x86_64)
- put readmes in %%doc

* Mon Aug 01 2005 Aurelien Bompard <gauret[AT]free.fr> 2.1-0.2.rc1
- update to rc1

* Wed Jun 15 2005 Aurelien Bompard <gauret[AT]free.fr> 2.1-0.1.alpha2
- update to 2.1 alpha2 to work with python >= 2.4 and zope >= 2.8

* Fri Apr  7 2005 Michael Schwendt <mschwendt[AT]users.sf.net>
- rebuilt

* Fri Feb 11 2005 Aurelien Bompard <gauret[AT]free.fr> 2.0.5-2
- apply Matthias' suggestions: cleanup %%description, drop Epoch, and
  use a better Group.

* Fri Feb 11 2005 Aurelien Bompard <gauret[AT]free.fr> 0:2.0.5-1
- initial Fedora Extras RPM