I've upgraded one application from framework 2.0 to framework 4.0.
I've tested at my local environment to set website 4.0 in IIS and it was working fine.
But, when it went to customer production environment, it is giving below error:
Could not load file or assembly 'OneOfService' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded
Could you please share your thoughts to resolve aforesaid issue?