Cannot find module or its corresponding type declarations in a deno project

I recently started exploring deno. I wanted to run a script and write data into a file and save it in a folder. In that case I used fs-extra. Even if I install the package, i am getting the error “Cannot find module ‘npm:fs-extra’ or its corresponding type declarations“

Installation command I used:
deno install npm:fs-extra

deno.json file:

  "tasks": {
    "dev": "deno run --watch main.ts"
  },
  "imports": {
    "@std/assert": "jsr:@std/assert@1",
    "fs-extra": "npm:fs-extra@^11.2.0",
    "mongodb": "npm:mongodb@^6.10.0"
  }
}

I imported it to the main.ts like this:
import fs from 'npm:fs-extra';

I tried using this way as well:
import fs from 'fs-extra';

But neither way worked out