Angular 4 : Build to prod: Property is private and only accessible within class

i'm using Angular 4 , i'm running : ng build --prod

i'm catching this :

ng build --prod
Your global Angular CLI version (1.2.2) is greater than your local
version (1.0.0). The local Angular CLI version is used.

To disable this warning use "ng set --global warnings.versionMismatch=false".
Hash: 7fce5d10c4c3ac9745e8
Time: 68351ms
chunk    {0} polyfills.7790a64cc25c48ae62ea.bundle.js (polyfills) 177 kB {4} [initial] [rendered]
chunk    {1} main.f10680210e9e45ed33cc.bundle.js (main) 382 kB {3} [initial] [rendered]
chunk    {2} styles.d2e6408caea42ccabf99.bundle.css (styles) 175 bytes {4} [initial] [rendered]
chunk    {3} vendor.fc69ec31f7ef40b5fffb.bundle.js (vendor) 5.9 MB [initial] [rendered]
chunk    {4} inline.91747411075ce6c7f438.bundle.js (inline) 0 bytes [entry] [rendered]

ERROR in ng:///D:/Sources/DotNet/NextGCClientWeb/src/app/login/login.component.html (11,3): Property 'activatedRoute' is private and only accessible within class 'Login
Component'.

ERROR in ng:///D:/Sources/DotNet/NextGCClientWeb/src/app/login/login.component.html (11,3): Property 'activatedRoute' is private and only accessible within class 'Login
Component'.

this error seems to be strange :

ERROR in 
    ng:///D:/Sources/DotNet/NextGCClientWeb/src/app/login/login.component.html (11,3): Property 'activatedRoute' is private and only accessible within class 'Login Component

The indicated component in the error is the follwoing :

import { Component } from '@angular/core';
import { Router, ActivatedRoute, Params } from '@angular/router';
import { Http, Response } from '@angular/http';
import { SessionService } from './../../shared/service';

import { User } from './../../model';

@Component({
  selector: 'login',
  templateUrl: './login.component.html',
  styleUrls: ['./login.component.css']
})
export class LoginComponent {
  error: string;
  email: string;
  password: string;
  stayConnected: Boolean;

  constructor (
    private sessionService: SessionService,
    private router: Router,
    private activatedRoute: ActivatedRoute
  ) {
    if (activatedRoute.snapshot.params['keyWording']) {
      this.sessionService.logInWithFinalization(activatedRoute.snapshot.params['keyWording']);
    }
  }

  logIn() {
    this.sessionService.logIn(this.email, this.password, this.stayConnected).subscribe(
      () => {
        if (this.sessionService.pageRequestedInUnauthenticated == null) {
          this.router.navigate(['/welcome']);
        } else {
          this.router.navigate([this.sessionService.pageRequestedInUnauthenticated]);
        }
      },
      (error: Response) => this.error = error.json()
    );
  }
}

The html view:

<div id="divLogin">
  <h1>Se connecter</h1><br>
  <i class="fa fa-envelope-o fa-lg" id="iconEmail"></i>
  <input type="text" id="email" [(ngModel)]="email" (keyup.enter)="logIn()" class="form-control" placeholder="Adresse email" autofocus />
  <i class="fa fa-lock fa-lg" id="iconPassword"></i>
  <input type="password" id="password" [(ngModel)]="password" (keyup.enter)="logIn()" class="form-control" placeholder="Mot de passe" />
  <button (click)="logIn()" class="btn btn-primary btn-block btn-lg">Connexion</button>
  <span id="containerStayConnected" title="Non implémenté"><input type="checkbox" id="stayConnected" [(ngModel)]="stayConnected" /><label for="stayConnected">Restez connecté</label></span>
  <a id="forgetPassword" title="Non implémenté">Mot de passe oublié</a><br><br><br>
  <a routerLink="/inscription">S'inscrire</a><br>
  {{ error }}
</div>

<div class="confirmationMessage" *ngIf="activatedRoute.snapshot.params['keyWording'] == 'validateInscription'"><br>Un lien de confirmation vous a été envoyé sur votre boîte email afin de valider votre compte. Merci.</div>

<div id="piedDePage"></div>

when running ng serve am not catching it .

Any propositions ??