When using pnpm instead of npm, my .d.ts declaration files don't work.

I'm using this .d.ts file:

import type * as CSS from "csstype";

declare module "csstype" {
  interface Properties {
    // Allow any CSS Custom Properties
    [index: `--${string}`]: any;
  }
}

import type * as CSS from "csstype";

declare module "csstype" {
  interface Properties {
    // Allow any CSS Custom Properties
    [index: `--${string}`]: any;
  }
}

to allow me to easily use CSS custom properties in style={{}} tags. I tried creating a new next.js project with pnpm (pnpm create next-app) and adding this declaration at the root of the project and it doesn't work, the editor is reporting errors and my build fails. If I move the project over to npm (remove node modules, remove pnpm-lock.yaml, run npm i), it starts working and my build succeeds. Any ideas?

1 Reply

praskooOP•16mo ago

In case anyone finds this, the solution was installing csstype (pnpm add -D csstype), because of how pnpm resolves dependencies versus npm.

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When using pnpm instead of npm, my .d.ts declaration files don't work.