wrangler deploy: Uncaught TypeError: require_streams(...) is not a function

[bkniffler]

Which Cloudflare product(s) does this pertain to?

Wrangler

What versions & operating system are you using?

Wrangler 4.16.0, Node v22.14.0, Mac OS Latest

Please provide a link to a minimal reproduction

No response

Describe the Bug

4.15.2 works fine. 4.16.0 gives below error.

$ wrangler deploy --no-bundle dist/index.js --env staging

 ⛅️ wrangler 4.16.0
-------------------

Total Upload: 8044.68 KiB / gzip: 1089.78 KiB
Your Worker has access to the following bindings:
- Hyperdrive Configs:
  - HYPERDRIVE: ...
- R2 Buckets:
  - ACTION_METRICS: ....

✘ [ERROR] A request to the Cloudflare API (/accounts/..../workers/scripts/api-staging/versions) failed.

  Uncaught TypeError: require_streams(...) is not a function
    at null.<anonymous>
  (file:///Users/bkniffler/GitHub/vrplatform/api/node_modules/iconv-lite/lib/index.js:144:9) in
  ../node_modules/iconv-lite/lib/index.js
    at null.<anonymous> (index.js:12:52) in __require
    at null.<anonymous>
  (file:///Users/bkniffler/GitHub/vrplatform/api/node_modules/raw-body/index.js:18:13) in
  ../node_modules/raw-body/index.js
    at null.<anonymous> (index.js:12:52) in __require
    at null.<anonymous>
  (file:///Users/bkniffler/GitHub/vrplatform/api/node_modules/co-body/lib/json.js:7:13) in
  ../node_modules/co-body/lib/json.js
    at null.<anonymous> (index.js:12:52) in __require
    at null.<anonymous>
  (file:///Users/bkniffler/GitHub/vrplatform/api/node_modules/co-body/lib/any.js:8:14) in
  ../node_modules/co-body/lib/any.js
    at null.<anonymous> (index.js:12:52) in __require
    at null.<anonymous>
  (file:///Users/bkniffler/GitHub/vrplatform/api/node_modules/co-body/index.js:3:28) in
  ../node_modules/co-body/index.js
    at null.<anonymous> (index.js:12:52) in __require
   [code: 10021]

  
  If you think this is a bug, please open an issue at:
  https://github.com/cloudflare/workers-sdk/issues/new/choose

Please provide any relevant error logs

No response

[verdverm]

Same problem, but with require_streams2, downgrading fixes the issue

[eiiot]

Also running into this with require_streams2.

[hsab]

+1

[dario-piotrowicz]

Hi @bkniffler, thanks for the issue 🙂

Could you share a minimal reproduction so that we can investigate this further? 🙏

(or anyone else that commented on the issue 🙏)

[chrisvariety]

Here's a minimal reproduction: https://github.com/chrisvariety/workers-sdk-repro (just run wrangler dev)

Just adding these lines to a worker:

import { genkit } from "genkit";
const ai = genkit({});

reproduces:

 ⛅️ wrangler 4.22.0
───────────────────
❓ Your types might be out of date. Re-run `wrangler types` to ensure your types are correct.
╭──────────────────────────────────────────────────────────────────────╮
│  [b] open a browser [d] open devtools [c] clear console [x] to exit  │
╰──────────────────────────────────────────────────────────────────────╯
[wrangler:info] Ready on http://localhost:8787
⎔ Starting local server...
✘ [ERROR] service core:user:my-first-worker: Uncaught TypeError: require_streams(...) is not a function

    at null.<anonymous> (index.js:88481:26) in
  node_modules/body-parser/node_modules/iconv-lite/lib/index.js
    at null.<anonymous> (index.js:18:51) in __require2
    at null.<anonymous> (index.js:88547:17) in
  node_modules/body-parser/node_modules/raw-body/index.js
    at null.<anonymous> (index.js:18:51) in __require2
    at null.<anonymous> (index.js:88935:19) in node_modules/body-parser/lib/read.js
    at null.<anonymous> (index.js:18:51) in __require2
    at null.<anonymous> (index.js:97955:17) in node_modules/body-parser/lib/types/json.js
    at null.<anonymous> (index.js:18:51) in __require2
    at null.<anonymous> (index.js:101085:20) in loadParser
    at null.<anonymous> (index.js:101074:16) in get



✘ [ERROR] The Workers runtime failed to start. There is likely additional logging output above.

wrangler@4.15.2 (as noted in this ticket) works fine if installed (e.g. npm i wrangler@4.15.2 --save-dev)

(note I did try to play with iconv-lite / ``raw-body` directly but wasn't able to figure out a reproduction with those packages directly)

[vicb]

The root cause seem to be in iconv-lite, see the generated code:

var require_lib = __commonJS({
  "node_modules/body-parser/node_modules/iconv-lite/lib/index.js"(exports2, module2) {

// ...

    var nodeVer = typeof process !== "undefined" && process.versions && process.versions.node;
    if (nodeVer) {
      nodeVerArr = nodeVer.split(".").map(Number);
      if (nodeVerArr[0] > 0 || nodeVerArr[1] >= 10) {
        require_streams()(iconv);
      }
      require_extend_node()(iconv);
    }

// ...
}

process.versions.node was added in Wrangler 4.16.0 to improve Nodejs compat (this is defined in Node).

However it looks like it's creating troubles with genkit