ionic build: Error in subprocess stdout pipe: Error [ERR_STREAM_WRITE_AFTER_END]: write after end at writeAfterEnd

**Description:**
I'm getting the following error when I run ionic build --prod

**Output:**
```
ionic build --prod --verbose
ionic:cli-utils Terminal info: { tty: true, ci: false } +0ms
ionic:cli-utils CLI global options: { _: [ 'build' ], help: false, h: false, verbose: true, quiet: false, interactive: true, color: true, confirm: false, json: false, prod: true, project: null, '--': [] } +268ms
ionic:cli-utils:lib:environment Environment open. +0ms
ionic:cli-utils:lib:project Project type from config: ionic/angular 4 (angular) +0ms
ionic:cli-utils Project name: undefined +11ms
ionic:cli Context: { binPath: '/usr/lib/node_modules/ionic/bin/ionic', libPath: '/usr/lib/node_modules/ionic', execPath: '/mnt/c/Users/marce/Documents/Code/xCode/lingusocial-ionic-v4', version: '4.0.0-rc.11' } +0ms
ionic:cli-utils:lib:hooks Looking for ionic:build:before npm script. +0ms
ionic:cli-utils:lib:project:angular:build Looking for ionic:build npm script. +0ms
> ng run app:build:production

Date: 2018-07-22T10:20:52.876Z
Hash: f05c78487b891411c436
Time: 13139ms
chunk {0} runtime.a66f828dca56eeb90e02.js (runtime) 1.05 kB [entry] [rendered]
chunk {1} styles.0dd73f3f0a0fd9c590d8.css (styles) 15.1 kB [initial] [rendered]
chunk {2} polyfills.207dcc605630215505f5.js (polyfills) 130 bytes [initial] [rendered]
chunk {3} main.f58b96bf9bf614ca37d4.js (main) 128 bytes [initial] [rendered]
ionic:cli-utils:lib:shell Error in subprocess stdout pipe: Error [ERR_STREAM_WRITE_AFTER_END]: write after end at writeAfterEnd (_stream_writable.js:241:12) at Object.Writable.write (_stream_writable.js:291:5) at Readable.write (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:855:33) at DestroyableTransform.ondata (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:619:20) at DestroyableTransform.emit (events.js:180:13) at addChunk (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:291:12) at readableAddChunk (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:278:11) at DestroyableTransform.Readable.push (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:245:10) at DestroyableTransform.Transform.push (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_transform.js:148:32) at push (/usr/lib/node_modules/ionic/node_modules/split2/index.js:52:10) +0ms
ionic:cli-utils:lib:shell Error in subprocess stderr pipe: Error [ERR_STREAM_WRITE_AFTER_END]: write after end at writeAfterEnd (_stream_writable.js:241:12) at Object.Writable.write (_stream_writable.js:291:5) at Readable.write (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:855:33) at DestroyableTransform.ondata (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:619:20) at DestroyableTransform.emit (events.js:180:13) at addChunk (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:291:12) at readableAddChunk (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:278:11) at DestroyableTransform.Readable.push (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_readable.js:245:10) at DestroyableTransform.Transform.push (/usr/lib/node_modules/ionic/node_modules/readable-stream/lib/_stream_transform.js:148:32) at push (/usr/lib/node_modules/ionic/node_modules/split2/index.js:52:10) +1ms
[ERROR] An error occurred while running subprocess ng.

ng run app:build:production exited with exit code 1.

Re-running this command with the --verbose flag may provide more information.
ionic:cli-framework:utils:process onBeforeExit handler: process.exit received +0ms
ionic:cli-framework:utils:process onBeforeExit handler: running 1 queued functions +0ms
ionic:cli-framework:utils:process onBeforeExit handler: exiting (exit code 1) +1ms
```

**My `ionic info`:**

```

Ionic:

ionic (Ionic CLI) : 4.0.0-rc.11 (/usr/lib/node_modules/ionic)
Ionic Framework : @ionic/angular 4.0.0-alpha.11
@angular-devkit/core : 0.7.0-rc.2
@angular-devkit/schematics : 0.7.0-rc.2
@angular/cli : 6.0.8
@ionic/ng-toolkit : 1.0.0-rc.11
@ionic/schematics-angular : 1.0.0-rc.11

Cordova:

cordova (Cordova CLI) : 8.0.0
Cordova Platforms : none

System:

NodeJS : v9.11.2 (/usr/bin/node)
npm : 6.2.0
OS : Linux 4.4

Environment:

ANDROID_HOME : not set

```

**Other Information:**