Despite the presence of installed definition files, Typescript is unable to detect the module

After following the detailed instructions on how to install lodash into my Ionic 2 project from this link: , I still encountered an error during compilation:

Error TS2307: Unable to locate module 'lodash'.

The way I am importing the module in my code is like this:

import * as _ from 'lodash';

You can find my project here: https://github.com/will093/guess-game

Although the application runs smoothly, the typescript compiler seems to think that the lodash module is missing. I suspect that the issue may lie with my tsconfig file, but upon reviewing it, the filesGlob does include my definition files:

{
    "compilerOptions": {
        "target": "es5",
        "module": "commonjs",
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true
    },
    "filesGlob": [
        "**/*.ts",
        "!node_modules/**/*"
    ],
    "exclude": [
        "node_modules",
        "typings/main",
        "typings/main.d.ts"
    ],
    "compileOnSave": false,
    "atom": {
        "rewriteTsconfig": false
    }
}

I would appreciate any assistance or insights you can provide. Thank you.

typescriptionic2

Answer №1

If you're encountering issues with type definitions while using Gulp, a helpful solution could be to manually copy the contents of index.d.ts from the specific typing package to main.d.ts.

For more insights on this topic, check out this forum discussion.

This approach successfully resolved an issue I faced with the query-string npm package.

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