The bug seems to have been introduce in Pharo7.0-SNAPSHOT.build.102.sha.3f660fc.arch.64bit by merging the pull request https://github.com/pharo-project/pharo/pull/1847
On Wed, Jan 16, 2019 at 1:32 AM Hilaire via Pharo-users < pharo-users@lists.pharo.org> wrote: > Indeed, seems to only happen in a subclass of BlEement. > > Hilaire > > Le 15/01/2019 à 21:33, Andrei Chis a écrit : > > It happens if you create methods in a class having a superclass with > > traits. For example if you create a subclass of BlElement you will get > > this error. > > > > What class are you editing when you get this errror? > > > -- > Dr. Geo > http://drgeo.eu > > > >