Parcel: Hot reload crashes 75% of the time (macOS)

[gorbypark]

Choose one: is this a 🐛 bug report or 🙋 feature request?
bug report

🎛 Configuration (.babelrc, package.json, cli command)

{
  "name": "vue-parcel",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "dependencies": {
    "vue": "^2.5.16"
  },
  "devDependencies": {
    "babel-preset-env": "^1.6.1",
    "parcel-bundler": "^1.7.1",
    "parcel-plugin-vue": "^1.5.0"
  },
  "alias": {
    "vue" : "./node_modules/vue/dist/vue.common.js"
  }
}

{
  "presets": [
    "env"
  ]
}



md5-102d1fc961f5b18ee70ea0502e53e6ac



⏳  Building App.vue...
/Users/gorbypark/.config/yarn/global/node_modules/parcel-bundler/src/workerfarm/Worker.js:114
        throw new Error(
        ^

Error: Worker Farm: Received message for unknown index for existing child. This should not happen!
    at Worker.receive (/Users/gorbypark/.config/yarn/global/node_modules/parcel-bundler/src/workerfarm/Worker.js:114:15)
    at ChildProcess.emit (events.js:160:13)
    at emit (internal/child_process.js:790:12)
    at process._tickCallback (internal/process/next_tick.js:152:19)

💁 Possible Solution

🔦 Context

💻 Code Sample

It is literally just a barebones vue environment.

🌍 Your Environment

| Software | Version(s) |
| ---------------- | ---------- |
| Parcel | 1.7.1
| Node | 9.5.0
| npm/Yarn | 1.3.2
| Operating System | macOS 10.12.6

[DeMoorJasper]

Why are you using parcel-plugin-vue?
There is native vue support in parcel.

If this doesn't resolve the error I'll open up a PR that resolves this.

[lbguilherme]

Happens on 100% of parcel build for me, on 1.7.1 on Linux. Same error.

Downgrading to 1.7.0 solved.

[DeMoorJasper]

This is a very strange bug? This means the workers aren't being started by the workerfarm, so you're running something that's not part of parcels workers as workers @lbguilherme
Would like to debug this if it's an open-source project, for now I'll open up a PR that just ignores these messages.

[tinchoz49]

Hi @lbguilherme! can you create an example project to test? I'm having the same error using parcel-plugin-typescript

[gorbypark]

@tinchoz49 Here's an example project. Sorry for the spelling mistake in the repo name, it's late!