Yes, this holds me be back for further refactorings on Nautilus.

I was able to add a InstVar on NautilusUI and after that you can

add and remove instvars again even on AbstractNautilusUI.

But then you can not add this changes as a slice, I tried this but it failed:

Nautilus Refactoring 5: intermediate code cleanup�� (remove unused methods)

btw this happens even before build 40147

I'll try to figure out what is needed to solve this issue.

2014-09-20 15:53 GMT+02:00 Ben Coman <btc@openinworld.com>:

In build 40239, if I try to add an instance variable (e.g. 'xx') to AbstractNautilusUI, I get "Error: should not happen" from LayoutEmptyScope(LayoutAbstractScope)>>rebase:to: A tried a few other classes and they are okay. I've tracked this down to occur since build 40147...

13697 Yet another cleanup of MessageBrowser API
�� https://pharo.fogbugz.com/f/cases/13697

13698 Small cleanup of Model and the UI package
�� https://pharo.fogbugz.com/f/cases/13698

13696 Nautilus Refactoring 1: Classlist widget
�� https://pharo.fogbugz.com/f/cases/13696

Is this a known problem? I can't identify a ticket on the tracker.

cheers -ben