No solution, I still have this : "ng : command not found" [closed] - node.js

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so far I managed to run ng serve, but since 4 or 5 days I can not, to solve the problem I tried everything that is proposed as a solution on the net but nothing works...
That's why I sincerely need your help !
How can I refurbish everything to make sure it will work ?
package.json :
{
"name": "cli-src",
"version": "0.0.0",
"license": "MIT",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"#angular/common": "^4.0.0",
"#angular/compiler": "^4.0.0",
"#angular/core": "^4.0.0",
"#angular/forms": "^4.0.0",
"#angular/http": "^4.0.0",
"#angular/platform-browser": "^4.0.0",
"#angular/platform-browser-dynamic": "^4.0.0",
"#angular/router": "^4.0.0",
"bootstrap": "^3.3.7",
"core-js": "^2.4.1",
"rxjs": "^5.1.0",
"zone.js": "^0.8.4"
},
"devDependencies": {
"#angular/cli": "1.0.0",
"#angular/compiler-cli": "^4.0.0",
"#types/jasmine": "2.5.38",
"#types/node": "~6.0.60",
"codelyzer": "~2.0.0",
"jasmine-core": "~2.5.2",
"jasmine-spec-reporter": "~3.2.0",
"karma": "~1.4.1",
"karma-chrome-launcher": "~2.0.0",
"karma-cli": "~1.0.1",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"karma-coverage-istanbul-reporter": "^0.2.0",
"protractor": "~5.1.0",
"ts-node": "~2.0.0",
"tslint": "~4.5.0",
"typescript": "~2.2.0"
}
}
For info, I'm on WINDOWS.
Thank you very much who will try to help me !

Answer 1

1) Ensure that you have the Angular cli installed by typing this at the command line: ng -v
2) Ensure you are in the folder containing the package.json file. To confirm, navigate to the folder you are using and list the files.
3) Open the package.json file and ensure it has a scripts section with the appropriate scripts defined.
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
4) Ensure you have installed all of the packages for the application. To confirm, ensure that there is a node_modules folder at the same location as the package.json file. To be absolutely sure, navigate to the folder containing the package.json file and type npm install.

Answer 2

This appears to be an issue using Bash. Consider NOT using Bash with windows. (I don't).
If you need to continue to use Bash, see the extended set of information here: https://github.com/angular/angular-cli/issues/5021
If you are on Windows:
1) Right-click on the start button in the lower left corner and select Run.
2) Select to open cmd, which may already be the default.
3) Click OK. This should open a command prompt.
4) Type the commands specified earlier, one at a time:
npm uninstall #angular/cli -g
npm cache --force clean
npm install #angular/cli -g
5) Type ng -v and you should now have the CLI appropriately installed.