Illegal instruction on latest version when installing or building on debian 12

[ssebastianoo]

Describe the bug

After running npm i (same error using bun) on raspbian I get this error:

seb@sebpi ~/test> npm i

> test@0.0.1 prepare
> svelte-kit sync || echo ''

Illegal instruction

Reproduction

• Create a sveltekit demo (npx sv create test)
• run npm i

Logs

seb@sebpi ~/test> npm i

> test@0.0.1 prepare
> svelte-kit sync || echo ''

Illegal instruction


added 2 packages, removed 1 package, and audited 212 packages in 5s

58 packages are looking for funding
  run `npm fund` for details

3 low severity vulnerabilities

To address all issues (including breaking changes), run:
  npm audit fix --force

Run `npm audit` for details.

System Info

System:
    OS: Linux 6.6 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (4) arm64 Cortex-A72
    Memory: 2.78 GB / 3.70 GB
    Container: Yes
    Shell: 3.7.1 - /usr/bin/fish
  Binaries:
    Node: 24.5.0 - ~/.local/share/nvm/v24.5.0/bin/node
    npm: 11.5.1 - ~/.local/share/nvm/v24.5.0/bin/npm
    pnpm: 9.10.0 - ~/.local/share/pnpm/pnpm
    bun: 1.2.8 - ~/.bun/bin/bun
  npmPackages:
    @sveltejs/adapter-auto: ^6.0.0 => 6.0.2 
    @sveltejs/kit: ^2.22.0 => 2.27.3 
    @sveltejs/vite-plugin-svelte: ^6.0.0 => 6.1.1 
    svelte: ^5.25.0 => 5.38.0 
    vite: ^7.0.4 => 7.1.1

Severity

blocking an upgrade

Additional Information

No response

[khromov]

The issue here is almost certainly that you're accidentally getting x64 binaries rather than arm. Try deleting node_modules and package-lock.json, then "npm i"