Doesn't work on El Capitan and lower
I m beginner, i tried to install but when I open the basic-setup plugin file, nothing is shown, just blank. (I see plugin is successfully installed on Sketch on Plugin tab)
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After npm install


-> fsevents@1.1.3 install /Users/bhur/react-sketchapp/examples/basic-setup/node_modules/fsevents
> node install

[fsevents] Success: "/Users/bhur/react-sketchapp/examples/basic-setup/node_modules/fsevents/lib/binding/Release/node-v57-darwin-x64/fse.node" already installed
Pass --update-binary to reinstall or --build-from-source to recompile

> uglifyjs-webpack-plugin@0.4.6 postinstall /Users/bhur/react-sketchapp/examples/basic-setup/node_modules/webpack/node_modules/uglifyjs-webpack-plugin
> node lib/post_install.js


> basic-setup@1.0.0 postinstall /Users/bhur/react-sketchapp/examples/basic-setup
> npm run build && skpm-link


> basic-setup@1.0.0 build /Users/bhur/react-sketchapp/examples/basic-setup
> skpm-build

[1/2] 🖨  Copied src/manifest.json in 10ms
[2/2] ⚒  Built ./my-command.js in 963ms
success Plugin built
[1/1] 🔗  Symlinking the plugin basic-setup...
success Plugin basic-setup symlinked
basic-setup - 1.0.0

warning Starting with Sketch 45, you need to restart Sketch for your plugin to appear in the "plugins" menu

npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN basic-setup@1.0.0 No repository field.




After npm run render,

> basic-setup@1.0.0 render /Users/bhur/react-sketchapp/examples/basic-setup
> skpm-build --watch --run

🖨  Copied src/manifest.json in 12ms
SyntaxError: Unexpected identifier 'j'. Expected either 'in' or 'of' in enumeration syntax..
Plugin “react-sketchapp: Basic Setup”, line 7314:
»   for (let j = 0; j < object.count(); j += 1) {
⛏  Built ./my-command.js in 4627ms



**Sketch version:**
47
