Error: Cannot match any routes. URL Segment:
Add pathMatch: 'full'
{path: '', component: AppComponent, pathMatch: 'full'},to routes with empty path '' and no child routes.
I am integrating Angular 2/4 into an existing MVC application, and I had this problem too.
Using your example, if I had path: 'Clients' in the routing config instead of path: 'clients' and tried to go to the URL such as http://localhost/clients, I would get this error.
The route path names are case sensitive (as of right now anyway). They won't match what's in your URL otherwise, and with typical MVC controller/action naming, they are "InitialCaps-style."
Check the imports session at the app.module.ts and look you did't miss the routing:
imports: [ BrowserModule, APP_ROUTES, AppRoutingModule ],