How is Firebase handling module resolution for your Cloud Functions

This is Gemini’s output when I pasted the command and output for an issue I’ve been trying to fix all day:

The error message “Property ‘region’ does not exist on type 'typeof import(”/home/user/studio/functions/node_modules/firebase-functions/lib/v2/index")'" is very specific. It means that when you write import * as functions from "firebase-functions";, the TypeScript checker in your environment believes that the functions object is of the type defined by the v2 SDK’s entry point (.../lib/v2/index.d.ts). However, the .region("europe-west1") method for defining functions is part of the v1 SDK’s FunctionBuilder.

Your firebase-functions package is version 6.0.1. The package.json for firebase-functions@6.0.1 specifies that the default import (i.e., import * as functions from "firebase-functions";) should resolve to the v1 SDK types ("main": "lib/v1/index.js", "types": "lib/v1/index.d.ts").

The fact that your build environment’s TypeScript is resolving it to v2 types indicates a problem with how that environment (Firebase Studio’s build process for functions) is handling or caching the firebase-functions module and its type definitions. This isn’t something that can typically be fixed by changing the application code itself, as your current code for defining v1 functions is correct v1 syntax.

The issue likely lies in the Firebase Studio environment’s functions/node_modules directory or its TypeScript compilation setup.