TS7016

error TS7016: Could not find a declaration file for module ‘uuidjs‘.

Broken Code ❌

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import UUID = require('uuidjs');

Fixed Code ✔️

Solution 1

The problem shows that uuidjs is a plain JavaScript module and doesn’t ship with TypeScript declaration files (.d.ts). That’s why we have to use the CommonJS import syntax to import this module in a Node.js environment:

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const UUID = require('uuidjs');

Solution 2

A proper fix would be to have a uuidjs.d.ts as part of uuidjs: https://github.com/LiosK/UUID.js/issues/6

Example:

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declare class UUID {
  static generate(): string;
}

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import UUID from 'uuidjs';
const id = UUID.generate();

Solution 3

If external typings are available in the DefinitelyTyped repository, then you can also install external declarations from there:

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npm i --save-dev @types/uuidjs

Solution 4

If there are no declarations available and you want to use the module (in this case uuidjs) with standard import syntax (not CommonJS), then you can create a shorthand ambient module declaration by creating a “*.d.ts” file and writing the following into it:

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declare module "uuidjs";

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