Windchill 9.1 F000 : Adding new Roles

I am trying to add some new Roles

Process followed is

1. windchill shell

2. enumCustomize

3. load in the codebase/wt/lifecyle/RolesRB.RB.ser

4. added the custom roles

5. save and exit enumCustomize

6. ant -f ./codebase/MakeJar.xml

Issue is as soon as I restart my Windchill after this. None of the Applets load.

They all show error classdeffound for : wt/services/ServiceProiderHelper

There is no class such as ServiceProviderHelper isWindchill 9.1 F000, then why is it asking for it ?