Typescript "exported external package typings is not a module"

Question

I'm trying to create my first Typescript definition file. The subject code is filename.js (index.js):

module.exports = {
  extension: extension,
  basename: basename,
  removeSuffix: removeSuffix,
  removeSuffixWithDelimiter: removeSuffixWithDelimiter,
  appendSuffix: appendSuffix,
  appendSuffixWithDelimiter: appendSuffixWithDelimiter,
  directoryName: directoryName
}
function extension(filename) {}
function basename(filename) {}
function removeSuffix(filename) {}
function removeSuffixWithDelimiter(delimiter, filename) {}
function appendSuffix(suffix, filename) {}
function appendSuffixWithDelimiter(suffix, delimiter, filename) {}
function directoryName(filename) {}

The definition (index.d.ts) file I have so far:

declare module "filename.js" {
  export function extension(filename: string): string;
  export function basename(filename: string): string;
  export function removeSuffix(filename: string): string;
  export function removeSuffixWithDelimiter(delimiter: string|number, filename: string): string;
  export function appendSuffix(suffix: string, filename: string): string;
  export function appendSuffixWithDelimiter(suffix: string, delimiter: string|number, filename: string): string;
  export function directoryName(filename: string): string;
}

This works well enough (auto complete works in my editor), but I get a compile error:

index.ts(21,29): error TS2656: Exported external package typings file 'filename.js/index.d.ts' is not a module. Please contact the package author to update the package definition.

What does this error mean (new to Typescript), and more importantly, how should I modify my definition to make it more correct?

Have you been able to fix this? I'm having the same issue.

empz
– empz

2016-07-02 23:28:21 +00:00
Commented Jul 2, 2016 at 23:28 — empz
– empz, Commented Jul 2, 2016 at 23:28
@emzero no I haven't been able to so far

Michael Robinson
– Michael Robinson

2016-07-02 23:35:22 +00:00
Commented Jul 2, 2016 at 23:35 — Michael Robinson
– Michael Robinson, Commented Jul 2, 2016 at 23:35
Hopefully it will be fixed in TS 2.0

empz
– empz

2016-07-03 02:03:23 +00:00
Commented Jul 3, 2016 at 2:03 — empz
– empz, Commented Jul 3, 2016 at 2:03

Ajay · Accepted Answer · 2016-04-09 11:40:50Z

1

Definition file for the data provided by you can be:-

declare module customTypings{
 interface filename{
  extension(filename: string): string;
  basename(filename: string): string;
  removeSuffix(filename: string): string;
  removeSuffixWithDelimiter(delimiter: string|number, filename: string): string;
  appendSuffix(suffix: string, filename: string): string;
  appendSuffixWithDelimiter(suffix: string, delimiter: string|number, filename: string): string;
  directoryName(filename: string): string;
 }
}

You can use this typing file by specifying:-

/// <reference path="pathName" />

See if it works.

For more info refer already created .d.ts files. e.g. angular-material.d.ts

answered Apr 9, 2016 at 11:40

Ajay

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3 Comments

Michael Robinson Over a year ago

Same error, unfortunately. Also your example doesn't provide accurate auto-completions.

Ajay Over a year ago

did you saw already created .d.ts file. may be we should refer those files when creating our so that we don't include any extra thing inside our code.

Michael Robinson Over a year ago

I included my index.d.ts file in the question.

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