[Yum] how to enable fedora development repository in yum

[yinglcs2 at yahoo.com]

Can you please tell me how to enable fedora
development repository in yum?

I tried this,but get an error:
$ yum --enablerepo=/etc/yum.repos.d/fedora-devel.repo


Error getting repository data for
/etc/yum.repos.d/fedora-devel.repo, repository not
found

Here is my file:
]# more /etc/yum.repos.d/fedora-devel.repo
[development]
# These packages are untested and still under
development. This
# repository is used for updates to test releases, and
for
# development of new releases.
#
# This repository can see significant daily turn over
and can see major
# functionality changes which cause unexpected
problems with other
# development packages. Please use these packages if
you want to work
# with the Fedora developers by testing these new
development packages.
#
# fedora-test-list at redhat.com is available as a
discussion forum for
# testing and troubleshooting for development packages
in conjunction
# with new test releases.
#
# fedora-devel-list at redhat.com is available as a
discussion forum for
# testing and troubleshooting for development packages
in conjunction
# with developing new releases.
#
# Reportable issues should be filed at
bugzilla.redhat.com
# Product: Fedora Core
# Version: devel
name=Fedora Core $releasever - Development Tree
#baseurl=http://download.fedora.redhat.com/pub/fedora/linux/core/development/$basearch/
mirrorlist=http://fedora.redhat.com/download/mirrors/fedora-core-rawhide
enabled=0
gpgcheck=0



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