在Typescript中使用prettyjson时出错

Question

I'm trying to use https://www.npmjs.com/package/prettyjson with Typescript but it can't find the module.

I started with package.json:

{
  "name": "prettyjson-test",
  "description": "prettyjson with typescript",
  "private": true,
  "version": "0.0.1",
  "engines": {
    "node": "5.2.x",
    "npm": "3.3.x"
  }
}

Then I ran npm install prettyjson --save

Next I ran tsd install prettyjson --save

I created pj.ts:

/// <reference path="./typings/tsd.d.ts"/>
import prettyjson = require('prettyjson');

Finally, I ran tsc pj.ts --module "commonjs"

C:\\projects\\pj\\pj.ts(3,1): error TS2071: Unable to resolve external module ''prettyjson''. C:\\projects\\pj\\pj.ts(3,1): error TS2072: Module cannot be aliased to a non-module type.

Based on TypeScript won't resolve external module (node.js) , I'm guessing that the d.ts file is incorrect, but I'm not sure where to go next.

Answer 1

Seems like an error in the .d.ts indeed. Looks like they forgot to put quotes ("") around the module name:

Changing declare module prettyjson { to declare module "prettyjson" { in the .d.ts solved it for me. Next step would probably be a pull request or a notification to the guys that wrote it.