Upgraded angular version to 1.6.* in bower and now authentication error while logging-in in angular fullstack v2.1.1

I have recently installed angular fullstack v2.1.1 and have updated angular to 1.6.*.After bower install I am getting the error below:

UnauthorizedError: No authorization token was found
    at middleware (C:\Users\Ajax\Desktop\bookWorms\book-worm\node_modules\express-jwt\lib\index.js:80:21)
    at Middleware_Common_Object.<anonymous> (C:\Users\Ajax\Desktop\bookWorms\book-worm\server\auth\auth.service.js:24:7)
    at next (C:\Users\Ajax\Desktop\bookWorms\book-worm\node_modules\composable-middleware\lib\composable-middleware.js:59:18)

Any help will be appreciated.

via akshay