title: Cydia Repo "The following signatures were invalid: NODATA 1 NODATA 2"
body: <p>Can anyone help us to check why our Cydia repo always generate an error message "GPG error,  Release: The following signatures were invalid: NODATA 1 NODATA 2
  When add the source to Cydia or the Cydia sour Reload.</p>
  
  <p>Our repo url is <a href="http://ikeymonitor.com/apt" rel="nofollow">http://ikeymonitor.com/apt</a></p>
  
  <p>Thanks for your help</p>