Hello,
during package installation I encountered an invalid key problem. Here are the logs:
•4 - 2016-01-20T10:04:57.320000 - Installation of waptpkg-adobereader (=2015.8.20082-2) (task #4): Exception: Package file C:\wapt\cache\waptpkg-adobereader_2015.8.20082-2_x86.wapt signature is invalid ...