Cannot read property 'length' of undefined - plugins.length() in patternlab-viewer.js

[alex-page]

I am using Pattern Lab Node- Gulp Edition v1.3.4 on Mac.

Expected Behavior

No errors in console on a fresh install.

Actual Behavior

Cannot read property 'length' of undefined - plugins.length() in patternlab-viewer.js

Steps to Reproduce

1. Download pattern lab gulp edition from the website
2. Make sure gulp is the correct version following documentation
3. Run gulp patternlab:serve
4. Open chrome and open http://localhost:3000/
5. View the console for the error.

[giuseppepaul]

I'm getting this same error on a Windows machine:

Windows 10
Any browser
Node v6.9.1
Gulp cli v1.2.2

[giuseppepaul]

The above change fixes this for me, but you also need to make sure you have a:

plugins: {}

in your patternlab-config.js file.

[alex-page]

Awesome that worked for me, I assume you meant: "plugins": {},

[bmuenzenmeyer]

Will be resolved for everyone when pattern-lab/patternlab-node#558 hits a release

[ba55ie]

FYI, I have the same error with the Grunt edition. Therefor I think the bug should be fixed in the styleguidekit-assets-default project. Adding a simple check for the (global) variable plugins will do the trick.

if (!plugins) {
   return;
}

https://github.com/pattern-lab/styleguidekit-assets-default/blob/master/src/js/plugin-loader.js#L19

[bmuenzenmeyer]

styleguidekit assets default is cross-platform with the PHP version, which is not suffering the issue. The fix I linked to above will resolve this for gulp and grunt node editions. stay tuned