Applying help

[Génie Informatique TIC]

Hi all,
Just for asking a help.
I'm working with Fedora 12(fc12) and when I want to install a new
software, there's an error message which is always displayed. Here is
its whole description:


Traceback (most recent call last):
  File "/usr/share/PackageKit/helpers/yum/yumBackend.py", line 2956, in
__init__
    self.repos.confirm_func = self._repo_gpg_confirm
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 717, in
<lambda>
    repos = property(fget=lambda self: self._getRepos(),
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 496,
in _getRepos
    self.conf # touch the config class first
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 723, in
<lambda>
    conf = property(fget=lambda self: self._getConfig(),
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 290,
in _getConfig
    self.getReposFromConfig()
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 397,
in getReposFromConfig
    self.getReposFromConfigFile(repofn, repo_age=thisrepo_age)
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 330,
in getReposFromConfigFile
    raise Errors.ConfigError, msg
ConfigError: File contains no section headers.
file: file://///etc/yum.repos.d/adobe-linux-i386.repo, line: 1
'su -\n'

I want that you help me to correct these errors so that I can enjoy
GNU services and favours.

Thanks for your help.

Kind regards.