NodeJS : 'router-outlet' is not a known element Angular 2

NodeJS : 'router-outlet' is not a known element Angular 2
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to reveal a secret feature to you, and now it's time to share it.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
Next, enter the letters 'awesome' on your keyboard.
It will change your youtube progress bar into a flashing rainbow.

Let me give you a brief introduction of who I am,
Hello everyone, I'm Delphi.
I can provide you with assistance to help you answer your questions.
NodeJS : 'router-outlet' is not a known element Angular 2
If you require more detailed information, please don't hesitate to comment or chat with me.
Don't hesitate to share your answer or insights on the answer by leaving a comment below.
I will 'heart' your answer as a sign of appreciation.
known : 'router-outlet' element not is a 2 Angular NodeJS