Comment # 4 on bug 937021 from Adrian Schr�ter

Please fix your repository config. No idea if that will lead to a usable result
at all:

  <repository name="CentOS_7">
    <path project="CentOS:CentOS-7" repository="standard"/>
    <path project="Fedora:19" repository="standard"/>
    <arch>x86_64</arch>
  </repository>