firebase functions deploy error : ERR_PACKAGE_PATH_NOT_EXPORTED - firebase

Question

I was following the in-app-purchase part in Google Codelab, But after I finish all steps and finally run firebase deploy this error has appeared.
I have read many solutions about the simillar problems, for example, remove node-modules and package-lock file then re-install them, down grade node version to 14, downgrade firebase-admin, firebase-functions...
But none of them works for me.
I'm totally desperate now. Please somebody help me. I already googled almost 72hours and I found nothing.
And here is the contents of terminal show up after I run firebase deploy.
% firebase deploy
=== Deploying to 'server-259035'...
i deploying firestore, functions
Running command: npm --prefix "$RESOURCE_DIR" run lint
> functions# lint /Users/functions
> eslint --ext .js,.ts .
Running command: npm --prefix "$RESOURCE_DIR" run build
> functions# build /Users/functions
> tsc
✔ functions: Finished running predeploy script.
i firestore: reading indexes from firestore.indexes.json...
i cloud.firestore: checking firestore.rules for compilation errors...
✔ cloud.firestore: rules file firestore.rules compiled successfully
i functions: ensuring required API cloudfunctions.googleapis.com is enabled...
i functions: ensuring required API cloudbuild.googleapis.com is enabled...
✔ functions: required API cloudfunctions.googleapis.com is enabled
✔ functions: required API cloudbuild.googleapis.com is enabled
i functions: preparing codebase default for deployment
Error: Failed to load function definition from source: Failed to generate manifest from function source: Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/firestore' is not defined by "exports" in /Users/functions/node_modules/firebase-admin/package.json
And package.json file.
{
"name": "functions",
"scripts": {
"lint": "eslint --ext .js,.ts .",
"build": "tsc",
"watch": "tsc --watch",
"serve": "firebase emulators:start",
"shell": "npm run build && firebase functions:shell",
"start": "npm run shell",
"deploy": "firebase deploy --only functions",
"logs": "firebase functions:log"
},
"engines": {
"node": "14"
},
"main": "lib/index.js",
"dependencies": {
"camelcase-keys": "^8.0.0",
"firebase-admin": "^11.0.1",
"firebase-functions": "^3.22.0",
"google-auth-library": "^8.0.2",
"googleapis": "^105.0.0",
"jest": "^28.1.3",
"lodash": "^4.17.21",
"node-apple-receipt-verify": "^1.12.1"
},
"devDependencies": {
"#types/node-apple-receipt-verify": "^1.7.1",
"#typescript-eslint/eslint-plugin": "^5.27.0",
"#typescript-eslint/parser": "^5.27.0",
"eslint": "^8.16.0",
"eslint-config-google": "^0.14.0",
"eslint-plugin-import": "^2.26.0",
"firebase-functions-test": "^2.3.0",
"typescript": "^4.7.2"
},
"private": true
}

Answer 1

I had the same issue when updated my package.json packages. I had to make the following change in order to fix it:
Before:
import firestore from "firebase-admin/lib/firestore";
After:
import firebaseAdmin from "firebase-admin";
** Add the prefix firebaseAdmin. to all the firestore references, eg: firebaseAdmin.firestore.Timestamp;*
I changed the following files:
app-store.purchase-handler.ts
google-play.purchase-handler.ts
iap.repository.ts

Answer 2

It happens with in_app_purchases flutter firebase example due to updated package names and their content. Full error is: Error: Failed to load function definition from source: Failed to generate manifest from function source: Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/firestore' is not defined by "exports" in functions/node_modules/firebase-admin/package.json
You need to replace: import firestore from "firebase-admin/lib/firestore"; with import firebaseAdmin from "firebase-admin";
Now you need to go your .ts files and replace the same import above with the new one and correct the references for example: firestore.Timestamp now will be firebaseAdmin.firestore.Timestamp
All the files you need to make changes are these ones:
app-store.purchase-handler.ts
google-play.purchase-handler.ts
iap.repository.ts

Answer 3

I’ve fixed, upgraded and updated codelab example backend functions for verifying in app purcashe on backend. You can find updated code here, it works as expected for me with node 18.
https://github.com/vbalagovic/iap-firebase-backend