The selector “my-app” did not match any elements

Question

The problem is when I run my app, it works fine. But when I refresh it, most of the time I get below msg.

The selector \"my-app\" did not match any e

Answer 1

I got same issue when I use Angular Universal. But it is because I am using BrowserModule in main.node.ts, the solution is

  imports: [
    UniversalModule,
    BrowserModule   // <- delete this will solve the issue
  ],

And check here for more info: https://github.com/angular/universal/issues/542