Preact: Cannot find module '../build/safe-execute'

[chank]

Hi, I'm a newbie to preact. I want to debug preact, but when I run npm run test got the following error:

13 02 2017 11:02:38.084:ERROR [plugin]: Error during loading "F:\workspace\preact\node_modules/karma-sauce-launcher" plugin:
  Cannot find module '../build/safe-execute'

START:
13 02 2017 11:02:44.304:INFO [karma]: Karma v1.4.1 server started at http://0.0.0.0:9876/
13 02 2017 11:02:44.305:INFO [launcher]: Launching browser PhantomJS with concurrency 2
13 02 2017 11:02:44.306:ERROR [karma]: Found 1 load error

nodejs: v6.9.5-x64

Can anyone know how to solve this? Thanks.

[developit]

Hmm - I have no idea what error this is, doesn't seem related to preact at all. I can't seem to find any references to safe-execute anywhere in the dependencies, either. Perhaps it's a Karma incompatibility with Windows? How are you running npm run test?

[aljones15]

seems to be babel related actually getting this error in a cucumber.js feature in es2016 syntax or maybe wd related. anyways hope that helps.

[developit]

@aljones15 ah ok. Think we can close this then?

[aljones15]

I was actually commenting because I was trying to find a solution to! But yeah it doesn't look like this is not a preact issue and is related to babel not finding a module. But I have no authority in your project! good luck with preact.

[aljones15]

yeah further investigation reveals this file: safeExecuteJsScript = require('../build/safe-execute')
seems to be having issues with babel or the relative path is not working as intended

[developit]

Where is that file located?

[voltrevo]

It looks like this can occur from a corrupted cache of the wd module. It's supposed to create ../build/safe-execute here:
https://github.com/admc/wd/blob/b1463ce/scripts/build-browser-scripts.js

Forcing a clean install of this module should resolve the issue. On travis I was able to resolve it by deleting my caches.

[developit]

Thanks @voltrevo - that confirms it's not related to Preact. Good to have your explanation around for those finding this via Google or if we run into the issue on Travis.