Version check failed: Your upload included the binary package libusbip-dev, version 2.0+4.4.6-1~bpo8+1, for i386, however jessie-backports already has version 2.0+4.5.3-2~bpo8+1. Uploads to jessie-backports must have a higher version than present in jessie-backports. === Please feel free to respond to this email if you don't understand why your files were rejected, or if you upload new files which address our concerns.