Uncached or missing npm package: "@types/node" when import mapping a node: specifier

[shinebayar-g]

Describe the bug

Below code works when I do deno run example.ts. However vscode extension is giving error if I use deno.json & import maps.

Uncached or missing npm package: "@types/node".deno(no-cache-npm)

To Reproduce

1. deno.json

{
    "imports": {
        "fs": "node:fs"
    }
}

2. example.ts.

import * as fs from 'fs';

function getTeams() {
    const teams = fs.readdirSync('./teams');
    console.log(teams);
}

getTeams();

Expected behavior

Import map works as expected.

However, when I do import * as fs from 'node:fs'; it works.

Screenshots

Versions

❯ deno --version
deno 1.30.3 (release, aarch64-apple-darwin)
v8 10.9.194.5
typescript 4.9.4

Deno extension: v3.17.0
VSCode: Version: 1.75.0 (Universal)
Commit: e2816fe719a4026ffa1ee0189dc89bdfdbafb164
Date: 2023-02-01T15:24:42.903Z
Electron: 19.1.9
Chromium: 102.0.5005.194
Node.js: 16.14.2
V8: 10.2.154.23-electron.0
OS: Darwin arm64 22.3.0
Sandboxed: No

[Creative-Difficulty]

Any updates?

[bartlomieju]

@shinebayar-g @Creative-Difficulty sorry for a slow response. Do you still experience these problems with Deno v1.35? We fixed two big pain points around npm and import maps in that release and I'm wondering if the issue still persists.

[Creative-Difficulty]

Will test it out!

[osddeitf]

@bartlomieju I think it still doesn't work

If I remember correctly, it worked alright after node: prefix stabilized (without installing @types/node), and the location of node: packages type definitions were not .cache/deno/npm/registry.npmjs.org/@types/node.

[bartlomieju]

@dsherret can you advise here? I thought this would work out-of-the box now.

[reggi]

This recently just broke for me without import maps 😭

deno 1.35.2 (release, aarch64-apple-darwin)
v8 11.6.189.7
typescript 5.1.6

(Deno VSCODE v3.19.1)

[dsherret]

@reggi what happens why you cache it by using the quick fix or the Deno: Cache Dependencies command? If that doesn't work, maybe try deno cache your_file.ts then run Deno: Restart Language Server

[reggi]

@dsherret thanks a bunch!
running deno cache then restarting didn't do it ❌
using the quick fix solution worked ✅