Smart light - an unexpected error occured

[Mike_Maxwell]

@Gpbennett

I had the same problem this morning. I had two instances of the lighting app originnaly and they both worked. This morning I tried go set up another instance and got the “unexpected error”. Also I noticed the icon changed on the smat apps list next to the lighting app. I found that you need to delete multiple instances and create the children as Mike explained. Since I was originally able to create muliple instances, something clearly changed on the Smartthings side, which is a bit disconcerting.

Yea, it was alluded to here:

Platform Update - Release Notes - 09/30/2015

IDE Fix for occasional issue where code would not load in the IDE after current session expired General Text to speech fixed. Add singleInstance flag to SmartApps ensuring only one app is ever installed, this is intended for use with service - manager style apps. http://docs.smartthings.com/en/latest/cloud-and-lan-connected-device-types-developers-guide/building-cloud-connected-device-types/building-the-service-manager.html?#handling-adds-changes-deletes Fix when calling “unsubscribe()” during uninstall. This allows unsubscribe to be called in the uninstall method of a smartapp without throwing an error. Instead it prints out a DEPRECATION message and ignores the call since it isn’t needed and would cause issues. Fix for a subset of customers not receiving push notifications. Routines …

I figured this was added specifically to deal with the confusion over “smart lighting” usage…