ERROR Error: Uncaught (in promise), Cannot match any routes. URL Segment

Question

I have simple navigation in angular 6 app,

Here is HTML

Answer 1

In case you need the [] syntax, useful for "edit forms" when you need to pass parameters like id with the route, you would do something like:

[routerLink]="['edit', business._id]"

As for an "about page" with no parameters like yours,

[routerLink]="/about"

or

[routerLink]=['about']

will do the trick.