Cydia Error HTTP/1.1 404 Not Found

here is the step to fix the error :

1.) Download iFile from Cydia (not app store)
2.) Open iFile and navigate to /var/lib/apt/lists/partial/
3.) Delete all files in the directory
4.) Navigate up one dir to /var/lib/apt/lists/
5.) Delete all files in this directory (the only thing this directory should contain is the empty partial folder)
6.) Navigate to /var/lib/cydia
7.) Delete metadata.plist
8.) Navigate to /etc/apt/sources.list.d/
9.) Delete all files in here including cydia.list
10.) Exit and respring
11.) Start Cydia and rejoice at the lack of 404 errors