Cannot require('rollup-plugin-vue')

[mysticatea]

node-sass, less and stylus are optional dependencies. If you are using scss/sass/less/stylus you should require (yarn add --dev node-sass less stylus) them.
http://vuejs.github.io/rollup-plugin-vue/#/en/2.3/?id=style-languages

The document says so, but I encountered Error: Cannot find module 'node-sass' error even if I don't use sass.

Expected behavior

No errors.

Actual behavior

Error: Cannot find module 'node-sass'
    at Function.Module._resolveFilename (module.js:470:15)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (****\test-
workspace\node_modules\rollup-plugin-vue\dist\rollup-plugin-vue.common.js:24:28)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
    at Function.Module._load (module.js:439:3)

Steps to reproduce the behavior

1. $ npm install rollup-plugin-vue
2. $ node -e "require('rollup-plugin-vue')"

[zhongqf]

not work even after runing yarn add --dev node-sass

[znck]

Hopefully fixed in #85. Would confirm after merging it!