Error when creating plugin

Hi all,
I’ve been working on a backend data source plugin, but I’ve recently been experiencing some errors when creating a new plugin using npx or running yarn. For example:

$ npx @grafana/toolkit@next plugin:create my-plugin
Unexpected token {

And when running yarn:

$ yarn --ignore-engines build
yarn run v1.22.4
$ grafana-toolkit plugin:build
  } catch {

SyntaxError: Unexpected token {
    at createScript (vm.js:80:10)
    at Object.runInThisContext (vm.js:139:10)
    at Module._compile (module.js:616:28)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)
    at startup (bootstrap_node.js:188:16)
    at bootstrap_node.js:609:3
error Command failed with exit code 1.
info Visit for documentation about this command.

I’m running on WSL Ubuntu 18.04 with node v8.10 and yarn 1.22.4.

Has anyone else experienced a similar issue or have any suggestions on how to fix this?

This seems to have been due to using an extremely old node version (thanks Ubuntu!) - it might be useful to put some versions onto the tutorial pages. I noticed that there’s already one for go but node and yarn are lacking them.