Hi Pino,
in this package there are files under the GPL-2 (stellarsolver/astrometry/libkd/an-fls.h) mixed with files under GPL-3+. According to [1] this is not allowed. Thorsten [1] https://www.gnu.org/licenses/gpl-faq.en.html#AllCompatibility === 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.