TSLint is unable to locate a custom module containing a custom d.ts file

I've been searching for a solution to this issue, but haven't found a definitive answer yet.

My current challenge involves using the suncalc module with TypeScript. Since it doesn't come with its own typing file, I created one and saved it in my typings directory under suncalc/suncalc.d.ts

At the beginning of my file, I've included the following lines:

/// <reference path="../typings/suncalc/suncalc.d.ts" />
"use strict";

import * as moment from "moment";
import {SunTimes} from "suncalc";
import SunCalc = require("suncalc");

The code is functioning correctly and wallaby is able to identify everything without any issues. However, TSLint (or the TypeScript Compiler) in WebStorm keeps indicating that it can't locate the 'suncalc' module.

I've experimented with changing my tslint.json, typings.json, and tsd.json, but I'm unable to resolve the error.

In addition, when I run gulp, it notifies me that it can't find modules like chai, it, or describe, even though WebStorm and TSLint don't flag them as issues.

I'm eager to eliminate the little red underline beneath the word 'suncalc' in my project.

Answer №1

It turns out that specifying ambient modules explicitly is necessary. The issue stemmed from the syntax errors in my d.ts file.

To correctly define the module, it is crucial to include the module name in quotes and not just the namespace declaration. In my particular case, I had to use

declare module "suncalc" { }

instead of

declare namespace suncalc { }

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