Why my bootstrapdoensn't effect on Angular?

Hello I have a project on Angular.

I install bootstrap, and I added to angular.json but still didn’t effect, So I restart app but still same, here is my code;

How can I fix this? Thank you.

I try restart my application,
I update my packages,
I check bootstarp path

>Solution :

use that :
"../node_modules/bootstrap/dist/css/bootstrap.min.css",
with ../