not displaying anything on browser shows this error agter installing npm and update npm and npm start.

[ghost]

This is console error on browser. Shows title but no view no header nothing.please help

Uncaught Error: [$injector:modulerr] Failed to instantiate module myApp due to:
Error: [$injector:modulerr] Failed to instantiate module myApp.contacts due to:
Error: [$injector:nomod] Module 'myApp.contacts' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument.