Cloudflare Developers•6mo ago

How to resolve `node:crypto` error during Sveltekit deploy

Run npm run preview to preview your production build locally.
12:28:16.327    
12:28:16.327    > Using @sveltejs/adapter-cloudflare
12:28:16.697      ✔ done
12:28:16.914    Finished
12:28:16.914    Found _worker.js in output directory. Uploading.
12:28:18.231    ✘ [ERROR] 1 error(s) and 0 warning(s) when compiling Worker.
12:28:18.232    
12:28:18.232    
12:28:18.235    
12:28:18.236    ✘ [ERROR] Could not resolve "node:crypto"
12:28:18.236    
12:28:18.236        _worker.js:64950:26:
12:28:18.236          64950 │ import { webcrypto } from "node:crypto";
12:28:18.236                ╵                           ~~~~~~~~~~~~~
12:28:18.237    
12:28:18.237      The package "node:crypto" wasn't found on the file system but is built into node.
12:28:18.237      Add the "nodejs_compat" compatibility flag to your Pages project to enable Node.js compatibility.
12:28:18.237    
12:28:18.237    
12:28:18.238    ✘ [ERROR] Build failed with 1 error:
12:28:18.238    
12:28:18.239      _worker.js:64950:26: ERROR: Could not resolve "node:crypto"
12:28:18.239    
12:28:18.239    
12:28:18.251    Failed building Pages Functions.
12:28:19.652    Failed: generating Pages Functions failed. Check the logs above for more information. If this continues for an unknown reason, contact support: https://cfl.re/3WgEyrH

Run npm run preview to preview your production build locally.
12:28:16.327    
12:28:16.327    > Using @sveltejs/adapter-cloudflare
12:28:16.697      ✔ done
12:28:16.914    Finished
12:28:16.914    Found _worker.js in output directory. Uploading.
12:28:18.231    ✘ [ERROR] 1 error(s) and 0 warning(s) when compiling Worker.
12:28:18.232    
12:28:18.232    
12:28:18.235    
12:28:18.236    ✘ [ERROR] Could not resolve "node:crypto"
12:28:18.236    
12:28:18.236        _worker.js:64950:26:
12:28:18.236          64950 │ import { webcrypto } from "node:crypto";
12:28:18.236                ╵                           ~~~~~~~~~~~~~
12:28:18.237    
12:28:18.237      The package "node:crypto" wasn't found on the file system but is built into node.
12:28:18.237      Add the "nodejs_compat" compatibility flag to your Pages project to enable Node.js compatibility.
12:28:18.237    
12:28:18.237    
12:28:18.238    ✘ [ERROR] Build failed with 1 error:
12:28:18.238    
12:28:18.239      _worker.js:64950:26: ERROR: Could not resolve "node:crypto"
12:28:18.239    
12:28:18.239    
12:28:18.251    Failed building Pages Functions.
12:28:19.652    Failed: generating Pages Functions failed. Check the logs above for more information. If this continues for an unknown reason, contact support: https://cfl.re/3WgEyrH

name = "--project_name"
account_id = "--my_id"

compatibility_flags = [ "nodejs_compat" ]

name = "--project_name"
account_id = "--my_id"

compatibility_flags = [ "nodejs_compat" ]

I've tried creating a wrangler.toml file with the node compat config but it doesn't change the outcome.

3 Replies

Kite•6mo ago

bump

_Pear•6mo ago

is this a local build or in CI? is node available where you're building? It should work, i have the same stack and im using node:crypto

Kite•6mo ago

Solution: Add the node_compat flag from within Cloudflares dashboard panel, see screenshot for reference or follow the link: https://developers.cloudflare.com/workers/runtime-apis/nodejs/

Cloudflare Docs

Node.js compatibility · Cloudflare Workers docs

Implemented Node.js runtime APIs and enablement instructions for your Worker project.

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How to resolve `node:crypto` error during Sveltekit deploy