Unexpected token < in JSON at position 0

<%= @topic_view.topic.title %>
<%= @topic_view.topic.average_rating %> <%= @topic_view.topic.posts.count { |p| !!p.custom_fields['rating'] } %>

I get that error when trying to submit challege 1 in Managing Packgaces with NPM. Just Cloned glithc project and added “author”: “Ismat”,
glitch . com /~light-chocolate

How can I solve it?

Can you link your package.json file?

{
  "//1": "describes your app and its dependencies",
  "//2": "https://docs.npmjs.com/files/package.json",
  "//3": "updating this file will download and update your packages",
  "name": "hello-express",
  "author": "Ismat",
  "version": "0.0.1",
  "description": "A simple Node app built on Express, instantly up and running.",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  },
  "dependencies": {
    "express": "^4.16.3"
  },
  "engines": {
    "node": "8.x"
  },
  "repository": {
    "url": "https://glitch.com/edit/#!/hello-express"
  },
  "license": "MIT",
  "keywords": [
    "node",
    "glitch",
    "express"
  ]
}


glitch . com/edit/#!/light-chocolate?path=package.json:1:0

used other glitch project, it worked, something wrong with default one

What do you mean “other glitch project”? I am having the same issue