I have upgraded my project to 9.1.6100 Upgrade process from Project manager went swiftly , however when i run the website and go to back end i cannot see module builder option in my Administration menu.
Also all my dynamic modules build from module builder and broken and not visible under content menu.
Can somebody please help me solve this issue.
Looks like module "Module builder" is not installed. Can you please go to Administration->Modules & Services and check if "Module Builder" installed and activated.