The problem seems to be the _ in project_name resulting in the following error:

Schematic input does not validate against the Schema: {"name":"project_name","version":"6.0.1","newProjectRoot":"projects","skipInstall":false,"linkCli":false,"skipGit":false,"commit":null}
Errors:

  Data path ".name" should match format "html-selector".

Replace _ e.g. with -.

Further readings:

• Error when creating new project with Angular-CLI 6.1.2
• Style Guide

Setting the working directory in IntelliJ's Karma task, to the Angular project's main directory, also fixes the problem.

I deleted the file in c:\users\XXX\.angular.json and it was running ok.

Run following if file is hidden. Open Terminal, run mv /Users/shivammishra/.angular.json /Users/shivammishra/angular.json.txt. mv command will move the file to new location (angular.json.txt) and you can then delete.

Angular.js & Wrong Directions.

First of all, open a file called angular.js in the root folder.

And check if you add some wrong Directory. like the style or something like that. as example.

Suppose you add the bootstrap dependency and you want to add it to your project you will go to the angular.js and add it in the style configuration. so you will add it as the below:

 "styles": [
              "./node_modules/bootstrap/dist/css/bootstrap.min.css",
              "src/styles.css"
            ],

Check if you add double dot .. not one dot in the path like the below:

"../node_modules/bootstrap/dist/css/bootstrap.min.css",

Or you maybe add it in the following format:

"/node_modules/bootstrap/dist/css/bootstrap.min.css",

or

"node_modules/bootstrap/dist/css/bootstrap.min.css",

The correct format is :

 "./node_modules/bootstrap/dist/css/bootstrap.min.css",