Cannot find module 'vue-loader-v16/package.json'

[planty]

Hi, I've followed your "Getting Started" steps, but I'm getting the following error when I run "npm run serve":

PS C:\build\heroes-vue\vue-app> npm run serve

> heroes-vue@0.1.0 serve C:\build\heroes-vue\vue-app
> vue-cli-service serve

 INFO  Starting development server...
 ERROR  Error: Cannot find module 'vue-loader-v16/package.json'
Require stack:
- C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\config\base.js
- C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\Service.js
- C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\bin\vue-cli-service.js
Error: Cannot find module 'vue-loader-v16/package.json'
Require stack:
- C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\config\base.js
- C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\Service.js
- C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\bin\vue-cli-service.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:794:15)
    at Function.Module._load (internal/modules/cjs/loader.js:687:27)
    at Module.require (internal/modules/cjs/loader.js:849:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\config\base.js:114:23
    at C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\Service.js:236:40
    at Array.forEach (<anonymous>)
    at Service.resolveChainableWebpackConfig (C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\Service.js:236:26)
    at Service.resolveWebpackConfig (C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\Service.js:240:48)
    at PluginAPI.resolveWebpackConfig (C:\build\heroes-vue\vue-app\node_modules\@vue\cli-service\lib\PluginAPI.js:132:25)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! heroes-vue@0.1.0 serve: `vue-cli-service serve`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the heroes-vue@0.1.0 serve script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

I can workaround this by installing the "vue-loader-v16" package, and then the app is functional, but I'm just wondering if there's something I'm missing?