Field matching Problem with datahub.io #27

When I try to upload this datapackage file -https://github.com/SiciliaHub/albopretoriopa/blob/master/datapackage.json - to datahub.io, using dpm ckan command, I have this error:
"success": false, "error": { "__type": "Validation Error", "__junk": [ "The input field __junk was not expected." ] }

If I remove licenses and sources fields, the process runs without any problem.