React Packager 0.43.0-rc.2 EPIPE

Description

React Packager in react-native 0.43.0-rc.2 is giving random EPIPE errors on Windows 10. It seems that sourceMaps stopped working (the red box shows index.android.bundle. URL instead of the proper symbolication)

Reproduction

• npm run start then wait

Additional Information

• React Native version: 0.43.0-rc.2
• Platform: Android 6
• Operating System: Windows 10 x64

Bundling `index.android.js`  100.0% (971/971), done.
SyntaxError: Unexpected end of JSON input
    at parse (<anonymous>)
    at process._tickCallback (internal/process/next_tick.js:109:7)
{ Error: write EPIPE
    at exports._errnoException (util.js:1033:11)
    at Socket._writeGeneric (net.js:727:26)
    at Socket._write (net.js:746:8)
    at doWrite (_stream_writable.js:329:12)
    at writeOrBuffer (_stream_writable.js:315:5)
    at Socket.Writable.write (_stream_writable.js:241:11)
    at Socket.write (net.js:673:40)
    at Socket.Writable.end (_stream_writable.js:475:10)
    at Socket.end (net.js:443:31)
    at Promise.resolve.then.then.then.catch.then.message (G:\mobile\cadastro\node_modules\react-native\packager\src\Server\symbolicate\worker.js:35:33) code: 'EPIPE', errno: 'EPIPE', syscall: 'write' }

[janicduplessis]

It will be in 0.45 for sure, I’ll check if we can cherry pick it in 0.44 also

[pbassut]

Also running into this.