Cannot use custom definitions in TS2

[jjmoorhouse]

TypeScript Version: 2.0.3 from npm

Code

I've got the following project structure setup

@types/
-- events
---- index.d.ts
node_modules/
-- @types
-----react, react-dom etc
utils/
-- eventEmitter.js
tsconfig.json

In my tsconfig.json I have:

{
  "compilerOptions": {
    "module": "commonjs",
    "moduleResolution": "node",
    "target": "es5",
    "jsx": "react",
    "allowJs": true,
    "sourceMap": true,
    "typeRoots" : [
      "./@types"
    ],
    "types" : [
      "events",
      "ajax",
      "path",
      "keymirror"
    ]
  },
  "exclude" : [
    "node_modules",
    "@types"
  ]
}

in eventEmitter.js I have the following:

import * as events from "events";

Actual Behaviour:
When I try and compile with the file structure above, I get the following error

ERROR in ./utils/eventEmitter.ts
(1,25): error TS2307: Cannot find module 'events'.

However, if I move ./@types/events/index.d.ts to ./node_modules/@types/events/index.d.ts everything works as expected and the eventEmitter will compile

Expected behaviour:
Using the above configuration I would expect the compiler to pick up on my custom definitions which are in ./@types in the same way it does when the same definitions are in the node_modules/@types folder

[tapvolt]

I'm having the same problem too.

[mhegazy]

This looks like #11137. it should be fixed in the next release. for now to work around this issue, you will need to add a path mapping entry to tell the compiler to look in the @types override folder as such:

{
  "compilerOptions": {
    ...
    "path": {
         "*": ["*", "./@types/*"]
     }
     ...
  }
}

[jjmoorhouse]

worked a treat, thankyou very much :)

[mhegazy]

closing in favor of #11137