title: ngrx import in angular application
body: <p>I am trying to import NGRX to build a new Angular application but i have this error in my terminale when i use ng serve:</p>
  <p>ERROR in node_modules/@ngrx/store/src/reducer_creator.d.ts:32:99 - error TS1005: ',' expected.</p>
  <p>32 export declare function on&lt;State, Creators extends readonly ActionCreator[]&gt;(...args: [...creators: Creators, reducer: OnReducer&lt;State, Creators&gt;]): ReducerTypes&lt;State, Creators&gt;;
  ~
  node_modules/@ngrx/store/src/reducer_creator.d.ts:32:118 - error TS1005: ',' expected.</p>
  <p>32 export declare function on&lt;State, Creators extends readonly ActionCreator[]&gt;(...args: [...creators: Creators, reducer: OnReducer&lt;State, Creators&gt;]): ReducerTypes&lt;State, Creators&gt;;</p>
  <p>This Is my angular cli  /  node version / OS
  Angular CLI: 9.1.0
  Node: 10.13.0
  OS: darwin x64</p>