Error TS2315: Type 'Int32Array' is not generic.

[pixelsnis]

Related issues

None that I could find

[REQUIRED] Version info

"firebase-admin": "^12.1.0"
"firebase-functions": "^5.0.0"

node:

v20.16.0

firebase-functions:

12.1.0

firebase-tools:

13.16.0

firebase-admin:

12.1.0

[REQUIRED] Test case

Initialize Firebase functions using firebase init functions. Write any function and try deploying with firebase deploy --only functions.

[REQUIRED] Steps to reproduce

Same as test case

[REQUIRED] Expected behavior

Deployment should go through normally

[REQUIRED] Actual behavior

Deployment fails with this error:

node_modules/@google-cloud/storage/build/cjs/src/crc32c.d.ts:115:45 - error TS2315: Type 'Int32Array' is not generic.

Were you able to successfully deploy your functions?

No, but by modifying the mentioned file manually and changing Int32Array<ArrayBuffer> to Int32Array fixes it temporarily. Function deploys after that.

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[nickgiarraputo]

This is a new problem for sure. Just initialized a new firebase project and it won't even build with it's own default code.

[nickgiarraputo]

Want to also add that your fix does work for me as well. Reverting Int32Array<ArrayBuffer> to simply Int32Array. I'm not sure why this was changed.

[tdcolvin]

Same issue using:
"firebase-admin": "^13.0.2",
"firebase-functions": "^6.2.0"
... and node 22.13.0

[tdcolvin]

The problem seems to be an outdated version of Typescript which is installed by default in the project created using firebase init. For me it installed Typescript 4.9.0.
Running npm i typescript@latest upgraded it to v5.7.3 and that seemed to solve the issue.

[jimmy-chiang]

Encounter this issue too.
I can confirm that @tdcolvin solution can solve this error.

[fransiska]

"firebase-admin": "^13.0.2",
"firebase-functions": "^6.2.0",
"typescript": "^5.7.3"
... and node 20.18.1

still has the same error, only solved by changing the source file manually

[Padreco-lbr]

Can confirm that upgrading typescript solved the issue for me as well, as per @tdcolvin.

[imanabu]

Confirmed: Upgrade TypeScript to 5.7.3 will fix this issue.

yarn add -D typescript@latest

[ItsTeccs]

Built fine yesterday, had issues today. Can confirm as well that updating TypeScript to latest fixed the issue immediately.

[imanabu]

Also, this message should be updated if TS 5.7.3 is indeed required.

WARNING: You are currently running a version of TypeScript which is not officially supported by @typescript-eslint/typescript-estree.

You may find that it works just fine, or you may not.

SUPPORTED TYPESCRIPT VERSIONS: >=4.7.4 <5.5.0

YOUR TYPESCRIPT VERSION: 5.7.3

[SamJbori]

Same issue

 "dependencies": {
    "firebase-admin": "^13.0.2",
    "firebase-functions": "^6.3.0",
  },
  "devDependencies": {
    "@typescript-eslint/eslint-plugin": "^5.62.0",
    "@typescript-eslint/parser": "^5.62.0",
    "eslint": "^8.57.1",
    "eslint-config-google": "^0.14.0",
    "eslint-plugin-import": "^2.31.0",
    "firebase-functions-test": "^3.4.0",
    "typescript": "^5.5.4"
  },

[tdcolvin]

Also, this message should be updated if TS 5.7.3 is indeed required.

WARNING: You are currently running a version of TypeScript which is not officially supported by @typescript-eslint/typescript-estree.

You may find that it works just fine, or you may not.

SUPPORTED TYPESCRIPT VERSIONS: >=4.7.4 <5.5.0

YOUR TYPESCRIPT VERSION: 5.7.3

I don't know if this message is caused by out-of-date firebase-tools running the build, or out-of-date firebase-admin / firebase-functions dependencies used during the build. But my experience is that by upgrading all three of these, the message no longer appears.

[kkig]

"@google-cloud/storage": "^7.15.0"
"firebase-admin": "^13.0.2"
"firebase-functions": "^6.3.1"
"typescript": "^4.9.0"

node_modules/@google-cloud/storage/build/cjs/src/crc32c.d.ts:6:39 - error TS2315: Type 'Int32Array' is not generic.
declare const CRC32C_EXTENSION_TABLE: Int32Array<ArrayBuffer>;
                                        ~~~~~~~~~~~~~~~~~~~~~~~
node_modules/@google-cloud/storage/build/cjs/src/crc32c.d.ts:115:45 - error TS2315: Type 'Int32Array' is not generic.
static readonly CRC32C_EXTENSION_TABLE: Int32Array<ArrayBuffer>;

Updating typescript to 5.7.3 fixed this issue. Can confirm @tdcolvin solution works!