CODEWITHSUNDEEP
typescriptnpmtypescript-typings
GregH
GregH

Reputation: 5459

Typescript Typings definition errors

I am currently having issues adding proper type definitions to my project. I am very new to typescript and am following the guidance of a book (called ASP.NET Core and Angular 2) in order to become more familiar with it so I apologize if I my question lacks clarity at all. Anyway, in my index.d.ts file, I am getting about 140 errors. A few of these errors which each show up many times are:

Cannot find name 'PropertyKey'. Property 'unscopables' does not exist on type 'SymbolConstructor'.

After some research, it looks like this may be a versioning issue however after playing with different versions of core-js and typings in my package.json file, I am still unable to resolve the issue. Please see my below for m package.json file:

{
    "version": "1.0.0",
    "name": "mylestone",
    "private": true,
    "dependencies": {
        "@angular/common": "2.0.0-rc.5",
        "@angular/compiler": "2.0.0-rc.5",
        "@angular/core": "2.0.0-rc.5",
        "@angular/http": "2.0.0-rc.5",
        "@angular/platform-browser": "2.0.0-rc.5",
        "@angular/platform-browser-dynamic": "2.0.0-rc.5",
        "@angular/upgrade": "2.0.0-rc.5",
        "core-js": "^2.4.1",
        "reflect-metadata": "^0.1.3",
        "rxjs": "5.0.0-beta.6",
        "systemjs": "^0.19.37",
        "typings" :  "^1.3.2",
        "zone.js": "^0.6.12"
    },
    "devDependencies": {
        "gulp": "^3.9.1",
        "gulp-clean": "^0.3.2",
        "gulp-concat": "^2.6.0",
        "gulp-sourcemaps": "^1.6.0",
        "gulp-typescript": "^2.13.16",
        "gulp-uglify": "^2.0.0",
        "typescript": "^1.8.10"
    },
    "scripts": {
        "postinstall" :  "typings install dt~core-js --global"
    }
}

All help is appreciated.

Upvotes: 1

Views: 49

Answers (1)

OJ Kwon
OJ Kwon

Reputation: 4651

You shouldn't use typings anymore, it's deprecated. install @types/core-js as devdependency. I do expect that probably won't clear all issues around your codebases though, might need to adjust tsconfig as well correctly.

Upvotes: 2

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