Angular2: I am getting following error, while installing npm package

Question

I am new in Angular2. Trying to install package json component using npm install command. After installation, I get following error.

Because of this error, I am unable to compile my application. It gives more than 100 compilation errors. The errors like below

Error 171 '(' expected. project directory\node_modules\rxjs\operator\concat.d.ts

Error 289 Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' project directory agGridNg2.ngfactory.ts

Can you add your package json content here? at least dependencies, devDependencies and peerDependencies — DDRamone
– DDRamone, Commented Jan 30, 2017 at 12:46
"dependencies": { "@angular/common": "~2.1.0", "@angular/compiler": "~2.1.0", "@angular/core": "~2.1.0", "angular2-text-mask": "2.1.0", "bootstrap": "^3.3.7", "core-js": "^2.4.1", "pdfmake": "^0.1.24", "reflect-metadata": "^0.1.8", "rxjs": "5.0.0-beta.12", "systemjs": "0.19.39", "zone.js": "^0.6.25" }, — sanni
– sanni, Commented Jan 31, 2017 at 7:14

Poul Kruijt · Accepted Answer · 2017-01-30 12:48:55Z

1

Inside your tsconfig.json set the experimentalDecorators to true:

{
  "compilerOptions": {
    ...
    "experimentalDecorators": true,
  }
}

answered Jan 30, 2017 at 12:48

Poul Kruijt

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