I'm trying to upgrade GP 2015 to 2018. I've tried many times but I keep getting errors like below. So I'm trying to upgrade to 2016 first, but I still keep getting these errors. Can someone please tell me what is the best path to get to 2016. My current GP is on 14.00.1162.000. How can I get to GP 2016? Thank you in advance
Failure encountered ON 8/24/2020 at 11:20:38 PM. Error: Product 0 does not support upgrading from version 14.0.1159.
Failure encountered ON 8/24/2020 at 11:20:38 PM. Error: Product 309 does not support upgrading from version 14.0.1114.
Failure encountered ON 8/24/2020 at 11:20:38 PM. Error: Product 1493 does not support upgrading from version 14.0.1065.
Failure encountered ON 8/24/2020 at 11:20:38 PM. Error: Product 0 does not support upgrading from version 14.0.1159.
Failure encountered ON 8/24/2020 at 11:20:38 PM. Error: Product 309 does not support upgrading from version 14.0.1114.
Failure encountered ON 8/24/2020 at 11:20:38 PM. Error: Product 1493 does not support upgrading from version 14.0.1065.
Failure encountered ON 8/24/2020 at 11:20:38 PM. Error: Product 0 does not support upgrading from version 14.0.1159.
Failure encountered ON 8/24/2020 at 11:20:39 PM. Error: Product 309 does not support upgrading from version 14.0.1114.
Failure encountered ON 8/24/2020 at 11:20:39 PM. Error: Product 1493 does not support upgrading from version 14.0.1065.