# Running "run:optimizeBuild" (run) task failed

**URL:** <https://discuss.elastic.co/t/running-run-optimizebuild-run-task-failed/115736>\
**Category:** Kibana\
**Created:** [January 16, 2018, 2:43pm UTC](https://discuss.elastic.co/t/running-run-optimizebuild-run-task-failed/115736 "2018-01-16T14:43:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![radi](https://avatars.discourse-cdn.com/v4/letter/r/4491bb/32.png) [@radi](https://discuss.elastic.co/u/radi)\
**Post date:** [January 16, 2018, 2:43pm UTC](https://discuss.elastic.co/t/running-run-optimizebuild-run-task-failed/115736/1 "2018-01-16T14:43:45Z")

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Hello, the run of optimizeBuild failed with this errors:

Running "run:optimizeBuild" (run) task  
log [14:11:37.760] [info][optimize] Optimizing and caching bundles for kibana, timelion and status\_page. This may take a few minutes  
log [14:14:18.204] [fatal] Error: Optimizations failure.

```
WARNING in ./build/kibana/src/ui/public/styles/spinner.less
Module build failed: ModuleBuildError: Module build failed: Error: EINVAL: invalid argument, uv_interface_addresses
    at Error (native)

```

I am working in windows 10 and use bash ubuntu Linux 3.4.0  
kibana 5.4.4 code source get it with clone  
node v6.12.3  
npm v3.10.10

@weltenwort

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<div class="post-metadata">

**Author:** ![spalger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spalger/32/14092_2.png) [@spalger](https://discuss.elastic.co/u/spalger)\
**Post date:** [January 16, 2018, 6:16pm UTC](https://discuss.elastic.co/t/running-run-optimizebuild-run-task-failed/115736/2 "2018-01-16T18:16:27Z")

</div>

I'm finding several people who receive errors like `EINVAL: invalid argument, uv_interface_addresses` when using "Bash on windows". I suggest sticking with an actual Ubuntu VM.

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<div class="post-metadata">

**Author:** ![radi](https://avatars.discourse-cdn.com/v4/letter/r/4491bb/32.png) [@radi](https://discuss.elastic.co/u/radi)\
**Post date:** [January 17, 2018, 9:07am UTC](https://discuss.elastic.co/t/running-run-optimizebuild-run-task-failed/115736/3 "2018-01-17T09:07:59Z")

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Hello, @spalger

I have succeeded to build kibana 5.4.0 with Bash on windows  
i updae npm version to 4.6.1

for npm 3.x the modification add is :  
in kibana\node\_modules\macaddress\index.js

lib.networkInterfaces = function () {  
var ifaces;  
try {  
ifaces=os.networkInterfaces();  
} catch (e) {  
ifaces=os.networkInterfaces = () =\> ({});  
}

also, i find your vidéo [https://www.elastic.co/elasticon/conf/2016/sf/how-to-build-your-own-kibana-plugins](https://www.elastic.co/elasticon/conf/2016/sf/how-to-build-your-own-kibana-plugins)

have you please sample files for visualization development for version 5.x using existing vizualisation or a docuementation who helps me in my mission to add modification in existing visualization ?  
I find this just for kibana 6.x !

thank's

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 14, 2018, 9:08am UTC](https://discuss.elastic.co/t/running-run-optimizebuild-run-task-failed/115736/4 "2018-02-14T09:08:23Z")

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