Hi, 

When I use the new component  Scrollspy , I got errors like :

"ERROR TypeError: Cannot set property 'active' of undefined
at ScrollSpyService.push../node_modules/ng-uikit-pro-standard/esm5/ng-uikit-pro-standard.es5.js.ScrollSpyService.setActiveLin ... "

here is my code :

<header class="intro-header">

<mdb-navbar SideClass="navbar navbar-expand-lg navbar-dark fixed-top scrolling-navbar" [containerInside]="true">

<mdb-navbar-brand>

<a class="logo navbar-brand waves-light" mdbWavesEffect href="#">

<img src="assets/logo.png" height="40" alt="mdb logo">

</a>

</mdb-navbar-brand>

<links >

<ul class="navbar-nav ml-auto" mdbScrollSpy="menu" >

<li class="nav-item waves-light black-text" mdbWavesEffect>

<a mdbPageScroll [pageScrollInterruptible]="false" class="nav-link" mdbScrollSpyLink="intro" href="#intro" >Home <span class="sr-only">(current)</span></a>

</li>

<li class="nav-item waves-light black-text" mdbWavesEffect>

<a mdbPageScroll [pageScrollInterruptible]="false" class="nav-link" mdbScrollSpyLink="aboutUs" href="#aboutUs" >About us</a>

</li>

<li class="nav-item waves-light black-text" mdbWavesEffect>

<a mdbPageScroll [pageScrollInterruptible]="false" class="nav-link" mdbScrollSpyLink="contactUs" href="#contactUs" >Contact us</a>

</li>

</ul>

</links>

</mdb-navbar>

</header>

<section id="intro" mdbScrollSpyElement="menu">...<>

<section id="aboutUs" mdbScrollSpyElement="menu">...<>

<section id="contactUs" mdbScrollSpyElement="menu">...<>