Web AppBuilder (for Developer) failure

[BrianCotterall1]

I am using Web AppBuilder for Developer 2.7 and just set it up on my local machine.  I am not able to click on the "OK" button for any of the widgets. 

Steps to reproduce: 

1. Create new web app
2. Click on Widget tab 
3. Add Widget 
4. Select Widget
5. Click OK - Error

Below is chrome console output.

FeatureActionManager.js?wab_dv=2.7:174 Uncaught TypeError: Cannot read property 'en-us' of undefined
at Object.<anonymous> (FeatureActionManager.js?wab_dv=2.7:174)
at Object.forEach (init.js:70)
at Object.registerWidgetFeatureActions (FeatureActionManager.js?wab_dv=2.7:162)
at Object.<anonymous> (FeatureActionManager.js?wab_dv=2.7:207)
at init.js:63
at visitBigSection (utils.js?wab_dv=2.7:120)
at Object.visitElement (utils.js?wab_dv=2.7:84)
at Object.c.visitElement (ConfigManager.js?wab_dv=2.7:188)
at Object._reRegisterWidgetActions (FeatureActionManager.js?wab_dv=2.7:204)
at Object._onAppConfigChanged (FeatureActionManager.js?wab_dv=2.7:252)

Seems to be something to do with this line:  

label: widgetJson.manifest['i18nLabels_featureAction_' + action.name][window.dojoConfig.locale] ||
widgetJson.manifest['i18nLabels_featureAction_' + action.name].defaultLabel

Have I forgotten to configure something?  This is my first time testing this app locally?  I need to develop custom widgets..

[TimHoward2]

Here is how I fixed this problem with the Demo widget.  From the Demo widget manifest.json, remove the following lines.

"featureActions": [{

    "name": "ShowVertex",

    "uri": "ShowVertexFeatureAction"

  }]

This feature action is broken or incomplete, but in any event notice that the error starts in FeatureActionManager and this ShowVertex thing is the culprit.

[JoeHershman]

Hi,

I came across this myself and what I found is that it seems the problem occurs when two different widgets use the same path to a feature action.

So if I have two widgets and both have a feature action name located in a folder with the same name.

So we have:

widget1/featureActions/myAction

widget2/featureActions/myAction

The failure occurs with the second widget.

If I do a rename so have..

widget1/featureActions/myAction

widget2/actions/myAction

everything works fine.