Hi all, I'm sending this mail to the three lists because it is an error I found in the three Smalltalks (Squeak, Pharo and Cuis) and maybe we could share the effort to solve it and the solution. The problem can be reproduce with this test: test1 self should: [ self error: 'something' ] raise: Error withExceptionDo: [ :anError | self assert: 'something different' equals: anError messageText ] If you run that test, it will fail of course. So if you go with the debugger to the context that signals de error (self error: 'something') and press restart and then over you will find the error. In the case of Squeak and Cuis, a new debugger is opened and you can not do anything with the original one. In the case of Pharo, the debugger stops working (in another try it opened a new debugger also but I could not reproduce it). I think the problem is related to the execution simulation but it is not a simple problem... Any idea what it could be? Cheers! Hernan. -- *Hernán WilkinsonAgile Software Development, Teaching & Coaching* *Phone: +54-011*-4893-2057 *Twitter: @HernanWilkinson* *site: http://www.10Pines.com <http://www.10pines.com/>* Address: Alem 896, Floor 6, Buenos Aires, Argentina