GET /index.html" Error (404): "Not found"

[shershen08]

Starting with npm run start
and then opening any of the provided urls I try to open url in browser and get a blank page.
In log I have this:

> http-server dist

Starting up http-server, serving dist
Available on:
  http://127.0.0.1:8080
  http://127.94.0.1:8080
  http://192.168.2.3:8080
Hit CTRL-C to stop the server
[Wed Mar 20 2019 21:51:45 GMT+0100 (CET)] "GET /" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36"
[Wed Mar 20 2019 21:51:45 GMT+0100 (CET)] "GET /" Error (404): "Not found"
[Wed Mar 20 2019 21:51:59 GMT+0100 (CET)] "GET /index.html" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36"
[Wed Mar 20 2019 21:51:59 GMT+0100 (CET)] "GET /index.html" Error (404): "Not found"
[Wed Mar 20 2019 21:52:14 GMT+0100 (CET)] "GET /index.html" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36"
[Wed Mar 20 2019 21:52:14 GMT+0100 (CET)] "GET /index.html" Error (404): "Not found"

node -v
v8.11.3

npm -v
6.8.0

[LasaleFamine]

Hi @shershen08, did you build the project first? You should run:

npm run build

Let me know if the problem persist after building the project.

[shershen08]

When I try to build it I get:

(node:75485) UnhandledPromiseRejectionWarning: SyntaxError: super() is only valid inside a class constructor of a subclass. Maybe a typo in the method name ('constructor') or not extending another class? (13:6)

because of

export default class CounterElement {
   /.../
    constructor() {
      super();  <-------- this call
      this.clicks = 0;
      this.value = 0;
    }

then if i try like this

  export default class CounterElement extends LitElement{
   /.../
    constructor() {
      super();
      this.clicks = 0;
      this.value = 0;
    }

i get

    (node:75452) UnhandledPromiseRejectionWarning: SyntaxError: Unexpected token, expected "{" (3:57)```