Game files required to initialize the global shader library are missing

Summary

Been having issues with packaging my game for testing.
Did build all levels, cooking, packaging. Made sure settings are correct, tried with creating a new profile under project launcher, copied all the same settings as previously done on a previous version and still have the same error message when i click on the project.exe file. Tried with or without pak files. No iostore, windows default or x64 etc…

What Type of Bug are you experiencing?

Other

Steps to Reproduce

Build all levels, cook, package. get no error message system confirm all complete.
when i open the .exe file it says:
[Game files required to initialize the global shader library are missing]
Did check all the different options, try different folders for the packaging.

Expected Result

Game was previously opening without problem before my new version.

Observed Result

get the message:
Game files required to initialize the global shader library are missing

Affects Versions

5.7

Platform(s)

Windows