Angular components are removed after installing a new component - node.js

Question

I have an asp.net core web application with angular 5. I want to generate some Barcodes and let the user to print them. After searching I found ngx-barcode. A barcode component for Angular4+. As it says in its page I need install it using this command
$ npm install ngx-barcode –save
So at the node.js command prompt I run that command in my application directory. Like this:
E:\MyprojectDir\ npm install ngx-barcode –save
After getting some warning and at the end of the command execution I got the following message in command prompt:
Added 2 packages and removed 21 packages.
It seems it has been deleted all other node packages from my project. And now there are no reference to angular/core, angular/forms and others package in my project.
This is the content of my package.json file:
{
"name": "",
"version": "0.0.0",
"license": "MIT",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e",
"postinstall": "webpack --config webpack.config.vendor.js"
},
"private": true,
"dependencies": {
"#angular/cli": "1.5.0",
"#angular/compiler-cli": "^5.0.0",
"#angular/language-service": "^5.0.0",
"#types/jasmine": "~2.5.53",
"#types/jasminewd2": "~2.0.2",
"#types/node": "~6.0.60",
"codelyzer": "~3.2.0",
"jasmine-core": "~2.6.2",
"jasmine-spec-reporter": "~4.1.0",
"karma": "~1.7.0",
"karma-chrome-launcher": "~2.1.1",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^1.2.1",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.1.2",
"ts-node": "~3.2.0",
"tslint": "~5.7.0",
"typescript": "~2.4.2",
"#angular/animations": "^5.0.0",
"#angular/common": "^5.0.0",
"#angular/compiler": "^5.0.0",
"#angular/core": "^5.0.0",
"#angular/forms": "^5.0.0",
"#angular/http": "^5.0.0",
"#angular/platform-browser": "^5.0.0",
"#angular/platform-browser-dynamic": "^5.0.0",
"#angular/platform-server": "^5.0.0",
"#angular/router": "^5.0.0",
"#ngtools/webpack": "1.5.0",
"#types/webpack-env": "1.13.0",
"angular2-template-loader": "0.6.2",
"aspnet-prerendering": "^3.0.1",
"aspnet-webpack": "^2.0.1",
"awesome-typescript-loader": "3.2.1",
"bootstrap": "3.3.7",
"css": "2.2.1",
"css-loader": "0.28.4",
"es6-shim": "0.35.3",
"event-source-polyfill": "0.0.9",
"expose-loader": "0.7.3",
"extract-text-webpack-plugin": "2.1.2",
"file-loader": "0.11.2",
"html-loader": "0.4.5",
"isomorphic-fetch": "2.2.1",
"jquery": "3.2.1",
"json-loader": "0.5.4",
"preboot": "4.5.2",
"raw-loader": "0.5.1",
"reflect-metadata": "0.1.10",
"rxjs": "5.4.2",
"style-loader": "0.18.2",
"to-string-loader": "1.1.5",
"url-loader": "0.5.9",
"webpack": "2.5.1",
"webpack-hot-middleware": "2.18.2",
"webpack-merge": "4.1.0",
"zone.js": "0.8.12"
},
"devDependencies": {
"#angular/cli": "1.5.0",
"#angular/compiler-cli": "^5.0.0",
"#angular/language-service": "^5.0.0",
"#types/jasmine": "~2.5.53",
"#types/jasminewd2": "~2.0.2",
"#types/node": "~6.0.60",
"codelyzer": "~3.2.0",
"jasmine-core": "~2.6.2",
"jasmine-spec-reporter": "~4.1.0",
"karma": "~1.7.0",
"karma-chrome-launcher": "~2.1.1",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^1.2.1",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.1.2",
"ts-node": "~3.2.0",
"tslint": "~5.7.0",
"typescript": "~2.4.2",
"#types/chai": "4.0.1",
"chai": "4.0.2",
"karma-chai": "0.1.0",
"karma-webpack": "2.0.3"
}
}
It's so nice of you to help me.

Answer 1

in this type of errors always npm install again will give us a good clue where the main problem is.
and based on #VahidGhadiri mentioned ,next step:
npm install --save-dev #ngtools/webpack#latest
for resolving
error "Version of #angular/compiler-cli needs to be 2.3.1 or greater.
Current version is "5.1.0"