Install step doesn't work

I just tried to use npm init rust-webpack todomvc and I get this error:

npx: installed 1 in 14.615s
 🦀 Rust + 🕸 WebAssembly + Webpack = ❤️
events.js:167
      throw er; // Unhandled 'error' event
      ^

Error: spawn npm ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:232:19)
    at onErrorNT (internal/child_process.js:407:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
Emitted 'error' event at:
    at Process.ChildProcess._handle.onexit (internal/child_process.js:238:12)
    at onErrorNT (internal/child_process.js:407:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)

If I manually run npm install in the todomvc directory it works fine, though I get these warnings:

> webpack-cli@3.2.0 postinstall todomvc\node_modules\webpack-cli
> opencollective postinstall


     *** Thank you for using webpack-cli! ***

Please consider donating to our open collective
     to help us maintain this package.

  https://opencollective.com/webpack/donate

                    ***

npm WARN create-rust-webpack@0.1.5 license should be a valid SPDX license expression
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

added 636 packages from 420 contributors and audited 8213 packages in 139.856s
found 1 high severity vulnerability
  run `npm audit fix` to fix them, or `npm audit` for details

Metadata

OS: Windows 10 64-bit wasm-pack: 0.5.1 Node: v10.15.0 npm: 6.4.1

[Pauan]

I found the issue: you have to specify shell: true on Windows in order for it to find npm on the PATH. I created a PR which fixes it: https://github.com/rustwasm/rust-webpack-template/pull/98

[Pauan]

Actually, why does it use the synchronous fs stuff but the async child_process stuff? I’ll send a PR.