Hi,
I have deployed Demo env with platform6 and 1611 application version. I was able to upgrade to platform Update 9. I would like to upgrade also application to newest version July2017. I'm proceeding by standard steps described on MS pages (https://docs.microsoft.com/en-us/dynamics365/unified-operations/dev-itpro/lifecycle-services/configure-execute-code-upgrade) but analyze of code throws error about customer models: "Customer models contain no metadata to upgrade. Please make sure the Descripitor folder has valid contents.". It stops on 0%. I created USR model where was only one class not connected to other and some extensions. I removed all of it, recreateted model, removed all. I was getting this error before performing this above actions and after. I do not want to deploy new env (because of data) but I would like to proceed with full upgrade process (learning).
I only found solution for upgrading from AX2012 by recreating modelstore but in this case it is from AX7 to AX7.
Bests,
Witold