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Looping a tag "<a>" with routerLink throw error?

I am new to Angular. Here is my code. The code below throws an error. If I replace the tag <a> with a button it works. You can view error in my sc https://i.stack.imgur.com/qDaw4.png
<div class="item userItem" *ngFor="let friend of friends">
<a class="btn-ask icon-caret-right" routerLink="/{{friend.username}}">
Ask
<fa-icon [icon]="faAngleRight"></fa-icon>
</a>
<a class="icon-star" routerLink="/{{friend.username}}">
<fa-icon [icon]="faStar"></fa-icon>
</a>
<img class="userAvatar userMood userMood-26"src="https://d15eldcwi10xcl.cloudfront.net/ee7/e9161/a3e2/43c8/b27b/c52a5703c5f9/thumb/1005453.jpg" alt="">
<a class="userItem_content" routerLink="/{{friend.username}}">
<span class="userName">{{friend.name}}</span>
<span class="userName" dir="ltr">#{{friend.username}}</span>
</a>
</div>

unexpected closing tag angular error

Writing an angular app in bulma, copied the template directly from the template site for testing and I get this error. I have checked and checked and everything is closed properly, yet somehow I keep getting an unclosed nav error. Oddly enough when I delete the closing nav tag, the site compiles correctly, but is broken. I have no idea what to do.
Code
<section class="hero is-info is-fullheight">
<div class="hero-head">
<nav class="navbar">
<div class="container">
<div class="navbar-brand">
<a class="navbar-item" href="../">
<img src="http://bulma.io/images/bulma-type-white.png" alt="Logo">
</a>
<span class="navbar-burger burger" data-target="navbarMenu">
<span></span>
<span></span>
<span></span>
</span>
</div>
<div id="navbarMenu" class="navbar-menu">
<div class="navbar-end">
<span class="navbar-item">
<a class="button is-white is-outlined" href="#">
<span class="icon">
<i class="fa fa-home"></i>
</span>
<span>Home</span>
</a>
</span>
<span class="navbar-item">
<a class="button is-white is-outlined" href="#">
<span class="icon">
<i class="fa fa-superpowers"></i>
</span>
<span>Examples</span>
</a>
</span>
<span class="navbar-item">
<a class="button is-white is-outlined" href="#">
<span class="icon">
<i class="fa fa-book"></i>
</span>
<span>Documentation</span>
</a>
</span>
<span class="navbar-item">
<a class="button is-white is-outlined" href="https://github.com/dansup/bulma-templates/blob/master/templates/landing.html">
<span class="icon">
<i class="fa fa-github"></i>
</span>
<span>View Source</span>
</a>
</span>
</div>
</div>
</nav>
</div>
<div class="hero-body">
<div class="container has-text-centered">
<div class="column is-6 is-offset-3">
<h1 class="title">
Coming Soon
</h1>
<h2 class="subtitle">
$this is the best software platform for running an internet business. We handle billions of dollars every year for forward-thinking businesses around the world.
</h2>
<div class="box">
<div class="field is-grouped">
<p class="control is-expanded">
<input class="input" type="text" placeholder="Enter your email">
</p>
<p class="control">
<a class="button is-info">
Notify Me
</a>
</p>
</div>
</div>
</div>
</div>
</div>
Error
`compiler.js:486 Uncaught Error: Template parse errors:
Unexpected closing tag "nav". It may happen when the tag has already
been closed by another tag. For more info see
https://www.w3.org/TR/html5/syntax.html#closing-elements-that-have-
implied-end-tags ("
</div>
</div>
[ERROR ->]</nav>
</div>`

in my case I was forgetting a detail in the tag
<button class="btn btn-primary" (click) "handleClickMe()
">Click me !</button>
I forgot to put the "=" in (click)="handleClickMe()

Usually if you see an "Unexpected closing tag <something>" the problem isn't actually with that <something> but rather with an adjacent element that hasn't been properly closed. Paste stuff here: https://validator.w3.org or any similar HTML validator service, or use a better editor/IDE that offers syntax highlighting to help you find these errors.
You are missing a closing </div> tag.
You close navbar-brand, navbar-menu and navbar-end but you do not close <div class='container'>
As this missing </div> tag ought to be directly before </nav>, you get the error telling you, in fact, exactly where you ought to look. "I found a </nav> I wasn't expecting to see!" ... Ok, so go look at wherever you have a </nav> and figure out what element nearby is missing or has typos, etc.

Adding for future reference, for Angular
I've also seen this where you have invalid html like this
<p>
<div>
</div>
</p>
Change the p to a div and it'll work

Creating a scrolling page without a plug-in. No scroll effect

I'm trying to create a one page scrolling site without using a plugin. Following this tutorial https://www.abeautifulsite.net/smoothly-scroll-to-an-element-without-a-jquery-plugin-2
The links work but there is no scrolling effect, it just jumps to the section.
JS
$('a[href^="#"]').on('click', function(event) {
var target = $(this.getAttribute('href'));
if( target.length ) {
event.preventDefault();
$('html, body').stop().animate({
scrollTop: target.offset().top
}, 1000);
}
});
HTML (updated to remove errors)
<div id="container">
<div class="banner">
<a class="button" href="#welcome"><h2 style="text-align: center;"></h2></a>
</div>
<div id="page1">
<a id="welcome"></a>
<h1></h1>
<div id="welcome_squares">
<div class="quarter-column">
<h3></h3>
<p></p>
</div>
<div class="quarter-column">
<a href="#info">
<div class="welcome_square">
<img src="/pageassets/" alt="" />
</div>
</a>
</div>
<div class="quarter-column">
<a href="#events">
<div class="welcome_square">
<img src="/pageassets/" alt="" />
</div>
</a>
</div>
<div class="quarter-column">
<a href="#contact">
<div class="welcome_square">
<img src="/pageassets/" alt="" />
</div>
</a>
</div>
</div>
</div>
<div class="full-column" id="tiles">
<a id="info"></a>
//CONTENT
</div>
<div class="full-column" id="tiles">
<a id="events"></a>
//CONTENT
</div>
<div id="contact">
<a id="contact"></a>
</div>
</div>

Hey here's the Fiddle which is working.
https://jsfiddle.net/fj1dfcsr/2/
Errors I've encountered.
<div id="container">
<div class="banner">
<a class="button" href="#welcome"><h2 style="text-align: center;"></h2></a>
</div>
<div id="page1">
<a id="welcome" href="#"></a>
<h1></h1>
<div id="welcome_squares">
<div class="quarter-column">
<h3></h3>
<p></p>
</div>
<div class="quarter-column">
<a href="#info">
<div class="welcome_square">
<img src="/pageassets/" alt="" />
</div>
</a>
</div>
<div class="quarter-column">
<a href="#events">
<div class="welcome_square">
<img src="/pageassets/" alt="" />
</div>
</a>
</div>
<div class="quarter-column">
<a href="#contact">
<div class="welcome_square">
<img src="/pageassets/" alt="" />
</div>
</a>
</div>
</div>
</div>
<div class="full-column" id="tiles">
<a id="info" href="#">INfo</a> //Here, you have used </div> instead of </a>
</div>
<div class="full-column" id="tiles">
<a id="events" href="#"></a> //Here also, you have used </div> instead of </a>
</div>
<div id="contact">
</div>
</div>
Few things you should keep in mind that you are calling a particular div whose id you know.
For example
<div id="home"></div>
then you'll have to use Home
not <a id="#home"> Home </a> //Wrong way

There are a lot of mistakes in the code you presented,so it's hard to tell what your original problem was. Here's a working fiddle based on your example.
https://jsfiddle.net/1dqhqpet/1/
I used the id attribute on anchors you place in the document to identify the location of a field you want to "go to". I also didn't put the content inside the anchor tags, because that is not how you do that normally. The anchor tag is a marker. But I don't see why that would be too much of a problem (although with the href on the anchor tag that would turn the whole text into a link). As you can see, since I didn't have access to your images I put some filler content in so you can see it scroll, but again, that shouldn't really affect anything.
It's likely your problem is not in the code you presented.
Some further notes on your code:
I know it was copy pasted, but you have an extra </div> after each //Content comment which makes it not working HTML
Your anchors that are used to identify the location of portions of the document don't need href attributes either. All they need is id. So
<a id="welcome" href="#"></a>
in your example becomes
<a id="welcome"></a>
Note that the content shouldn't go in the anchor tag either. It should go under it. The anchor is just like a bookmark to identify a portion of the page.
Based on how this works, the JQuery is only there to provide "smooth" scrolling. It works just fine without it.

Javascript with images

I am currently trying to insert image with Javascript attached to it and for some reason it works on Firefox but the images or icons do not display on IE.
I have done the coding like this:
<a href="javascript:changesize('xxx')">
<img src="Images/changesize.jpg" title="Change Text Size">
</a>
<a href="javascript:changefont('xxx')">
<img src="Images/changefont.jpg" title="Change Font">
</a>
<a href="javascript:changeline('xxx')">
<img src="Images/changeline.jpg" title="Change Line Spacing">
</a>
<a href="javascript:changecolors('xxx')">
<img src="Images/changecolors.jpg" title="Change Text/Backgroud Colors">
</a>

You could try:
<img src="Images/changeline.jpg" title="Change Line Spacing" onclick="changeline('xxx')">

Fancybox looping through multiple albums

I found this question unanswered in Google Groups and I'm facing the same bug in Fancybox.
I have more image galleries on one page. When I go to the next image
with the next prev buttons, and so on, I'll get to the images from the
other gallery.
With lightbox it's possible to do something like:
<a href="url" rel="fancybox[gallery1]" >link</a>
and I'll get all the images from
gallery1 in an image gallery. My albums are dynamic so I can't do it
in my javascript file.
Is this possible?
How would we control this navigation?
<div class="Album" />
<div class="AlbumImg">
<a class="big_img" title="Tokyo" rel="flickr_group" href="tokyo.jpg"></a>
<div id="Gallery0">
<a class="big_img" title="Tokyo rel="flickr_group" href=""Tokyobig></a>
<a class="grouped_elements" title="Tokyo" rel="Gallery0" href="Tokyo1"></a>
</div>
<div id="Gallery0">
<a class="grouped_elements" title="Tokyo" rel="Gallery0" href="Tokyo2"></a>
</div>
<div id="Gallery0">
<a class="grouped_elements" title="Tokyo" rel="Gallery0" href="Tokyo3.jpg"></a>
</div>
<img class="first" src="Tokyo" title="Tokyo" />
</a>
</div>
<div class="AlbumImg">
<a class="big_img" title="Tokyo" rel="flickr_group" href="tokyo.jpg"></a>
<div id="Gallery1">
<a class="big_img" title="Tokyo rel="flickr_group" href=""Tokyobig></a>
<a class="grouped_elements" title="Tokyo" rel="Gallery1" href="Tokyo1"></a>
</div>
<div id="Gallery1">
<a class="grouped_elements" title="Tokyo" rel="Gallery1" href="Tokyo2"></a>
</div>
<div id="Gallery1">
<a class="grouped_elements" title="Tokyo" rel="Gallery1" href="Tokyo3.jpg"></a>
</div>
<img class="first" src="Tokyo" title="Tokyo" />
</a>
</div>
This is the code I have where every album holds a number of images. When i hit the last image of the first album and navigate next I get to the first pic of the second album. But I want to cycle back to the first image of the same abum

The code you pasted contains a lot of errors...
You have multiple div's with the same id, and the attributes aren't contained within the quotes, in both <div class="AlbumImg"> there are a unmatched closing tag </a>. I'm not so sure that any of this matters for your example but you should definitely look in to it. And as Ruben said fancybox should work with the rel attribute as well, just like lightbox.
Your code should look something like this:
<div class="albums">
<div class="gallery1">
<a href="http://placehold.it/350x150.png" rel="gallery1">
<img alt="" src="http://placehold.it/150x150.png"/>
</a>
<a href="http://placehold.it/350x150.png" rel="gallery1">
<img alt="" src="http://placehold.it/150x150.png"/>
</a>
<a href="http://placehold.it/350x150.png" rel="gallery1">
<img alt="" src="http://placehold.it/150x150.png"/>
</a>
</div>
<div class="gallery2">
<a href="http://placehold.it/350x150.png" rel="gallery2">
<img alt="" src="http://placehold.it/150x150.png"/>
</a>
<a href="http://placehold.it/350x150.png" rel="gallery2">
<img alt="" src="http://placehold.it/150x150.png"/>
</a>
<a href="http://placehold.it/350x150.png" rel="gallery2">
<img alt="" src="http://placehold.it/150x150.png"/>
</a>
</div>
</div>
And if you want your galleries to cycle you have to pass a parameter to fancybox. See the documentation. Should look like this:
$(document).ready(function() {
$('a').fancybox({
'cyclic':true
});
});

<a class="grouped_elements" rel="gallery-x" href="Tokyo3.jpg">
this should work? don't forget the '-'
if it doenst work, can you provide the jquery code?