Go to var/lib/apt/lists
Look through there and delete whatever source you last added(seems to be sources that people are adding manually causing the problem...) mine was a Myrepospace repository. There should be a packages one and a release one for each repo. Delete both. Dont touch any of the pre installed repos ie: bigboss, saurik, zodttd, repo666....
also go into ect/apt/sources.list.d and edit the cydia.list file. Remove the repo you deleted from the list also...once again dont delete the factory sources i have listed above just the most recent one you added.
this will fix it perfectly. I used iFile from cydia to do this its free and works like a charm...Good luck guys
thatdudewhos@gmail.com if you need any help ill try