dont have one. there isnt any debug.log in the directory with the image ( or any other pharo associated directory. ) 2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com>

It would be helpful if you attach debug.log. This file is located in the same directory where the image is.

Cheers,

Mariano

2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>

...

that i dont really know how to describe... so i'm going to attach a screenshot... i opened the lastest pharo dev image... checked to see if the redraw bug that i have been experiencing was still there... went to quick and got a sudden flurry of message not understood errors ( see screenshot of the rearranged windows )...

i wasnt able to reliably reproduce but, when doing the same thing ( open and quit... ) about 2 out of every five times i got message not understood windows popping up.

[image: message not understood.png]

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I didn't know that. logDebuggerStackToFile is the option? It's strange because this is enable by default and I don't think Sean change it. On Wed, Jun 3, 2009 at 5:39 PM, Nicolas Cellier < nicolas.cellier.aka.nice@gmail.com> wrote:

This is controlled by a Preference setting...

Nicolas

2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>:

...

dont have one. there isnt any debug.log in the directory with the image ( or any other pharo associated directory. )

2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com>

...

It would be helpful if you attach debug.log. This file is located in the same directory where the image is.

Cheers,

Mariano

2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>

...

that i dont really know how to describe... so i'm going to attach a screenshot... i opened the lastest pharo dev image... checked to see if the redraw

bug

...

...

that i have been experiencing was still there... went to quick and got a sudden flurry of message not understood errors ( see screenshot of the rearranged windows )... i wasnt able to reliably reproduce but, when doing the same thing ( open and quit... ) about 2 out of every five times i got message not understood windows popping up.

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That's an old one... a bit late here so look it up on Mantis. ANYTHING that manipulates morphs etc. in a process other than the UI process is liable to break in one way or another. The mouse over handler is just one of the most frequent (most events)... The workaround we have is to do the nil check. A Workaround though... Regards, Gary ----- Original Message ----- From: Hernan Wilkinson To: Pharo-project@lists.gforge.inria.fr Sent: Wednesday, June 03, 2009 8:59 PM Subject: Re: [Pharo-project] an odd bug I think I founded the problem... I don't know what makes it happen or how to solve it yet :-) But the problem is a raise condition. In method MouseOverHandler>>processMouseOver: anEvent the instance variable leftMorphs is set to nil, but when accessing that variable there is no check for nil. So, if processMouseOver: anEvent is running in two different processes, in one leftMorphs could set to nil while in the other process is still been used... Is it possible for processMouseOver: anEvent to be evaluated in more than one process? If that is true, so that is the problem... if not, nothing makes sense... 2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com> I didn't know that. logDebuggerStackToFile is the option? It's strange because this is enable by default and I don't think Sean change it. On Wed, Jun 3, 2009 at 5:39 PM, Nicolas Cellier <nicolas.cellier.aka.nice@gmail.com> wrote: This is controlled by a Preference setting... Nicolas 2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>: > dont have one. there isnt any debug.log in the directory with the image ( or > any other pharo associated directory. ) > > 2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com> >> >> It would be helpful if you attach debug.log. This file is located in the >> same directory where the image is. >> >> Cheers, >> >> Mariano >> >> 2009/6/3 Sean Allen <sean@monkeysnatchbanana.com> >>> >>> that i dont really know how to describe... so i'm going to attach a >>> screenshot... >>> i opened the lastest pharo dev image... checked to see if the redraw bug >>> that i have been experiencing was still there... >>> went to quick and got a sudden flurry of message not understood errors ( >>> see screenshot of the rearranged windows )... >>> i wasnt able to reliably reproduce but, when doing the same thing ( open >>> and quit... ) about 2 out of every five times i >>> got message not understood windows popping up. >>> >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> Pharo-project@lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project@lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project@lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project ------------------------------------------------------------------------------ _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Stéphane Ducasse wrote:

Thanks.

I think that for the MouseOverHandler it would be good to know if this is related to Sensor changes. Mike what you think?

It shouldn't. On the Morphic side there weren't any changes to process behavior, it still pulls the events out of the queue in the step cycle. Michael

On Thu, Jun 4, 2009 at 3:11 AM, Michael Rueger <m.rueger@acm.org> wrote:

Stéphane Ducasse wrote:

...

Thanks.

I think that for the MouseOverHandler it would be good to know if this is related to Sensor changes. Mike what you think?

It shouldn't. On the Morphic side there weren't any changes to process behavior, it still pulls the events out of the queue in the step cycle.

Just as a bit more info. I used squeak for several months without ever seeing this error. I used pharo for 3 months without seeing this error. I've only gotten this error in the latest images with the latest vm and get it constantly. Not occassionally, I can get this to happen at least once every 120 seconds or so, sometimes more often. It would seem to be as an outsider, that something must have changed.

I was going to suggest exactly that.As a rule, I never use nil because if you do it you will have to check for it somewhere... nil is the root of most of the problems! if not, look at all the errors I fixed in the other mail, most of them are because nil is being used. So, instead of nil, another object has to be use, and like you said in this case an empty collection I think will work. I'm just changing that... I'll send the changes today (I hope). Hernan. On Thu, Jun 4, 2009 at 11:32 AM, Michael Rueger <m.rueger@acm.org> wrote:

Sean Allen wrote:

...

Just as a bit more info. I used squeak for several months without ever seeing this error. I used pharo for 3 months without seeing this error. I've only gotten this error in the latest images with the latest vm and get it constantly. Not occassionally, I can get this to happen at least once every 120 seconds or so, sometimes more often. It would seem to be as an outsider, that something must have changed.

it definitely sounds like it. Would be good to investigate what might have changed in the call path that *sets* the variable to check why it is ending up being nil. Maybe it shouldn't be set or initialized to nil but to an empty collection in those cases?

Michael

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yes, but not only that... I also create "complete objects" from its very first time. For example, instead of:Date new day:1; moth:1; year: 2009. I do: Date newDay: 1 moth: 1 year: 2009. That way you will never have an invalid Date 2009/6/4 Steve Wirts <stevewirts@gmail.com>

That's the Null Object Pattern!

http://en.wikipedia.org/wiki/Null_Object_pattern

2009/6/4 Hernan Wilkinson <hernan.wilkinson@gmail.com>

I was going to suggest exactly that.As a rule, I never use nil because if

...

you do it you will have to check for it somewhere... nil is the root of most of the problems! if not, look at all the errors I fixed in the other mail, most of them are because nil is being used. So, instead of nil, another object has to be use, and like you said in this case an empty collection I think will work. I'm just changing that... I'll send the changes today (I hope).

Hernan.

On Thu, Jun 4, 2009 at 11:32 AM, Michael Rueger <m.rueger@acm.org> wrote:

...

Sean Allen wrote:

...

Just as a bit more info. I used squeak for several months without ever seeing this error. I used pharo for 3 months without seeing this error. I've only gotten this error in the latest images with the latest vm and get it constantly. Not occassionally, I can get this to happen at least once every 120 seconds or so, sometimes more often. It would seem to be as an outsider, that something must have changed.

it definitely sounds like it. Would be good to investigate what might have changed in the call path that *sets* the variable to check why it is ending up being nil. Maybe it shouldn't be set or initialized to nil but to an empty collection in those cases?

Michael

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i didnt change anything. take a look and see if it is set. 2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com>

I didn't know that. logDebuggerStackToFile is the option?

It's strange because this is enable by default and I don't think Sean change it.

On Wed, Jun 3, 2009 at 5:39 PM, Nicolas Cellier < nicolas.cellier.aka.nice@gmail.com> wrote:

...

This is controlled by a Preference setting...

Nicolas

2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>:

...

dont have one. there isnt any debug.log in the directory with the image ( or any other pharo associated directory. )

2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com>

...

It would be helpful if you attach debug.log. This file is located in

the

...

same directory where the image is.

Cheers,

Mariano

2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>

...

that i dont really know how to describe... so i'm going to attach a screenshot... i opened the lastest pharo dev image... checked to see if the redraw

bug

...

that i have been experiencing was still there... went to quick and got a sudden flurry of message not understood errors ( see screenshot of the rearranged windows )... i wasnt able to reliably reproduce but, when doing the same thing ( open and quit... ) about 2 out of every five times i got message not understood windows popping up.

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2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>

2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com>

...

I didn't know that. logDebuggerStackToFile is the option?

It's strange because this is enable by default and I don't think Sean change it.

yeah that is enabled and i dont have a debug log.

I saw you are in Mac world which I know very little about. But, could this be a matter of permissions? what about a ls -la or something like that to see this ? Any other reason that can cause this ?

what is the difference between enabled and local checkboxes?

Several times I asked myself this. I don't know :(

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2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com>

2009/6/3 Sean Allen <sean@monkeysnatchbanana.com>

...

2009/6/3 Mariano Martinez Peck <marianopeck@gmail.com>

...

I didn't know that. logDebuggerStackToFile is the option?

It's strange because this is enable by default and I don't think Sean change it.

yeah that is enabled and i dont have a debug log.

I saw you are in Mac world which I know very little about. But, could this be a matter of permissions? what about a ls -la or something like that to see this ? Any other reason that can cause this ?

permissions are fine. this gets even weirder, i left the image open and 10 minutes after the debugger was opened, the debug.log was created. here is the content from the file, given how long it took to be created, i'm not sure it has everything: MessageNotUnderstood: UndefinedObject>>includes: 3 June 2009 4:19:55 pm VM: Mac OS - intel - 1057 - Squeak3.8.1 of '28 Aug 2006' [latest update: #6747] Squeak VM 4.1.1b2 Image: Pharo0.1 [Latest update: #10318] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir /Users/spooneybarger/Downloads/pharo0.1-10318dev09.05.4 Trusted Dir /foobar/tooBar/forSqueak/bogus Untrusted Dir /Users/spooneybarger/Library/Preferences/Squeak/Internet/My Squeak UndefinedObject(Object)>>doesNotUnderstand: #includes: Receiver: nil Arguments and temporary variables: aMessage: includes: a QuestionDialogWindow(14) exception: MessageNotUnderstood: UndefinedObject>>includes: resumeValue: nil Receiver's instance variables: nil MouseOverHandler>>noticeMouseOver:event: Receiver: a MouseOverHandler Arguments and temporary variables: aMorph: a QuestionDialogWindow(14) anEvent: [223@85 mouseOver nil nil] Receiver's instance variables: mouseOverMorphs: an Array(a PluggableButtonMorphPlus(1300) an OBButtonBar(63) a...etc... enteredMorphs: nil overMorphs: nil leftMorphs: nil HandMorph>>noticeMouseOver:event: Receiver: a HandMorph(3216) Arguments and temporary variables: aMorph: a QuestionDialogWindow(14) anEvent: [223@85 mouseOver nil nil] Receiver's instance variables: bounds: 326@214 corner: 342@230 owner: a PasteUpMorph(1622) [world] submorphs: #() fullBounds: 326@214 corner: 342@230 color: Color blue extension: a MorphExtension (539) [eventHandler = an EventHandler] mouseFocus: nil keyboardFocus: a PluggableButtonMorphPlus(3403) eventListeners: nil mouseListeners: nil keyboardListeners: nil mouseClickState: nil mouseOverHandler: a MouseOverHandler lastMouseEvent: [326@214 mouseUp 58531 nil] targetOffset: 28@20 damageRecorder: a DamageRecorder cacheCanvas: nil cachedCanvasHasHoles: true temporaryCursor: nil temporaryCursorOffset: nil hardwareCursor: nil hasChanged: true savedPatch: nil userInitials: '' lastEventBuffer: #(1 58531 326 214 0 0 0 1) lastKeyScanCode: 13 combinedChar: nil QuestionDialogWindow(Morph)>>handleMouseOver: Receiver: a QuestionDialogWindow(14) Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] Receiver's instance variables: bounds: 34@16 corner: 314@146 owner: a PasteUpMorph(1622) [world] submorphs: an Array(an AlignmentMorph(3705) a PanelMorph(2577)) fullBounds: 26@12 corner: 322@156 color: (Color r: 0.816 g: 0.812 b: 0.812) extension: a MorphExtension (864) [other: (layoutPolicy -> a ProportionalLayou...etc... borderWidth: 1 borderColor: Color lightGray model: nil slotName: nil open: false labelString: 'Question' stripes: an Array(a RectangleMorph(1983) a RectangleMorph(1221)) label: a LabelMorph(832)'Question' closeBox: nil collapseBox: nil activeOnlyOnTop: true paneMorphs: an Array(a PanelMorph(2577)) paneRects: nil collapsedFrame: nil fullFrame: 34@16 corner: 314@146 isCollapsed: false menuBox: nil mustNotClose: false labelWidgetAllowance: 0 updatablePanes: #() allowReframeHandles: true labelArea: an AlignmentMorph(3705) expandBox: nil cancelled: true textMorph: a TextMorph(1743) textFont: a LogicalFont familyName: DejaVu Sans emphasis: nil pointSize: 10 ...etc... iconMorph: an ImageMorph(2010) answer: nil MouseEvent>>sentTo: Receiver: [223@85 mouseOver nil nil] Arguments and temporary variables: anObject: a QuestionDialogWindow(14) Receiver's instance variables: timeStamp: nil source: a HandMorph(3216) windowIndex: nil type: #mouseOver buttons: 0 position: 223@85 handler: nil wasHandled: false QuestionDialogWindow(Morph)>>handleEvent: Receiver: a QuestionDialogWindow(14) Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] Receiver's instance variables: bounds: 34@16 corner: 314@146 owner: a PasteUpMorph(1622) [world] submorphs: an Array(an AlignmentMorph(3705) a PanelMorph(2577)) fullBounds: 26@12 corner: 322@156 color: (Color r: 0.816 g: 0.812 b: 0.812) extension: a MorphExtension (864) [other: (layoutPolicy -> a ProportionalLayou...etc... borderWidth: 1 borderColor: Color lightGray model: nil slotName: nil open: false labelString: 'Question' stripes: an Array(a RectangleMorph(1983) a RectangleMorph(1221)) label: a LabelMorph(832)'Question' closeBox: nil collapseBox: nil activeOnlyOnTop: true paneMorphs: an Array(a PanelMorph(2577)) paneRects: nil collapsedFrame: nil fullFrame: 34@16 corner: 314@146 isCollapsed: false menuBox: nil mustNotClose: false labelWidgetAllowance: 0 updatablePanes: #() allowReframeHandles: true labelArea: an AlignmentMorph(3705) expandBox: nil cancelled: true textMorph: a TextMorph(1743) textFont: a LogicalFont familyName: DejaVu Sans emphasis: nil pointSize: 10 ...etc... iconMorph: an ImageMorph(2010) answer: nil MorphicEventDispatcher>>dispatchDefault:with: Receiver: a MorphicEventDispatcher Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] aMorph: a QuestionDialogWindow(14) localEvt: [223@85 mouseOver nil nil] index: 3 child: a PanelMorph(2577) morphs: an Array(an AlignmentMorph(3705) a PanelMorph(2577)) inside: true Receiver's instance variables: lastType: #mouseOver lastDispatch: #dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: Receiver: a MorphicEventDispatcher Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] aMorph: a QuestionDialogWindow(14) Receiver's instance variables: lastType: #mouseOver lastDispatch: #dispatchDefault:with: QuestionDialogWindow(Morph)>>processEvent:using: Receiver: a QuestionDialogWindow(14) Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] defaultDispatcher: a MorphicEventDispatcher Receiver's instance variables: bounds: 34@16 corner: 314@146 owner: a PasteUpMorph(1622) [world] submorphs: an Array(an AlignmentMorph(3705) a PanelMorph(2577)) fullBounds: 26@12 corner: 322@156 color: (Color r: 0.816 g: 0.812 b: 0.812) extension: a MorphExtension (864) [other: (layoutPolicy -> a ProportionalLayou...etc... borderWidth: 1 borderColor: Color lightGray model: nil slotName: nil open: false labelString: 'Question' stripes: an Array(a RectangleMorph(1983) a RectangleMorph(1221)) label: a LabelMorph(832)'Question' closeBox: nil collapseBox: nil activeOnlyOnTop: true paneMorphs: an Array(a PanelMorph(2577)) paneRects: nil collapsedFrame: nil fullFrame: 34@16 corner: 314@146 isCollapsed: false menuBox: nil mustNotClose: false labelWidgetAllowance: 0 updatablePanes: #() allowReframeHandles: true labelArea: an AlignmentMorph(3705) expandBox: nil cancelled: true textMorph: a TextMorph(1743) textFont: a LogicalFont familyName: DejaVu Sans emphasis: nil pointSize: 10 ...etc... iconMorph: an ImageMorph(2010) answer: nil MorphicEventDispatcher>>dispatchDefault:with: Receiver: a MorphicEventDispatcher Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] aMorph: a PasteUpMorph(1622) [world] localEvt: [223@85 mouseOver nil nil] index: 2 child: a QuestionDialogWindow(14) morphs: an Array(a TaskbarMorph(3095) a QuestionDialogWindow(14) a PreferenceBr...etc... inside: false Receiver's instance variables: lastType: #mouseOver lastDispatch: #dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: Receiver: a MorphicEventDispatcher Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] aMorph: a PasteUpMorph(1622) [world] Receiver's instance variables: lastType: #mouseOver lastDispatch: #dispatchDefault:with: PasteUpMorph(Morph)>>processEvent:using: Receiver: a PasteUpMorph(1622) [world] Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] defaultDispatcher: a MorphicEventDispatcher Receiver's instance variables: bounds: 0@0 corner: 1216@771 owner: nil submorphs: an Array(a TaskbarMorph(3095) a SystemWindow(3034) a SystemWindow(21...etc... fullBounds: nil color: (Color r: 0.97 g: 0.98 b: 1.0) extension: a MorphExtension (2543) [eventHandler = an EventHandler] [other: (...etc... borderWidth: 0 borderColor: (Color r: 0.03 g: 0.02 b: 0.0) presenter: a Presenter (1246) model: a MorphicModel(1926) cursor: 1 padding: 3 backgroundMorph: nil isPartsBin: nil autoLineLayout: false indicateCursor: nil resizeToFit: nil wantsMouseOverHalos: nil worldState: a WorldState griddingOn: nil PasteUpMorph>>processEvent:using: Receiver: a PasteUpMorph(1622) [world] Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] defaultDispatcher: a MorphicEventDispatcher priorWorld: a PasteUpMorph(1622) [world] result: nil Receiver's instance variables: bounds: 0@0 corner: 1216@771 owner: nil submorphs: an Array(a TaskbarMorph(3095) a SystemWindow(3034) a SystemWindow(21...etc... fullBounds: nil color: (Color r: 0.97 g: 0.98 b: 1.0) extension: a MorphExtension (2543) [eventHandler = an EventHandler] [other: (...etc... borderWidth: 0 borderColor: (Color r: 0.03 g: 0.02 b: 0.0) presenter: a Presenter (1246) model: a MorphicModel(1926) cursor: 1 padding: 3 backgroundMorph: nil isPartsBin: nil autoLineLayout: false indicateCursor: nil resizeToFit: nil wantsMouseOverHalos: nil worldState: a WorldState griddingOn: nil PasteUpMorph(Morph)>>processEvent: Receiver: a PasteUpMorph(1622) [world] Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] Receiver's instance variables: bounds: 0@0 corner: 1216@771 owner: nil submorphs: an Array(a TaskbarMorph(3095) a SystemWindow(3034) a SystemWindow(21...etc... fullBounds: nil color: (Color r: 0.97 g: 0.98 b: 1.0) extension: a MorphExtension (2543) [eventHandler = an EventHandler] [other: (...etc... borderWidth: 0 borderColor: (Color r: 0.03 g: 0.02 b: 0.0) presenter: a Presenter (1246) model: a MorphicModel(1926) cursor: 1 padding: 3 backgroundMorph: nil isPartsBin: nil autoLineLayout: false indicateCursor: nil resizeToFit: nil wantsMouseOverHalos: nil worldState: a WorldState griddingOn: nil HandMorph>>sendEvent:focus:clear: Receiver: a HandMorph(3216) Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] focusHolder: nil aBlock: [closure] in HandMorph>>sendMouseEvent: result: nil Receiver's instance variables: bounds: 326@214 corner: 342@230 owner: a PasteUpMorph(1622) [world] submorphs: #() fullBounds: 326@214 corner: 342@230 color: Color blue extension: a MorphExtension (539) [eventHandler = an EventHandler] mouseFocus: nil keyboardFocus: a PluggableButtonMorphPlus(3403) eventListeners: nil mouseListeners: nil keyboardListeners: nil mouseClickState: nil mouseOverHandler: a MouseOverHandler lastMouseEvent: [326@214 mouseUp 58531 nil] targetOffset: 28@20 damageRecorder: a DamageRecorder cacheCanvas: nil cachedCanvasHasHoles: true temporaryCursor: nil temporaryCursorOffset: nil hardwareCursor: nil hasChanged: true savedPatch: nil userInitials: '' lastEventBuffer: #(1 58531 326 214 0 0 0 1) lastKeyScanCode: 13 combinedChar: nil HandMorph>>sendMouseEvent: Receiver: a HandMorph(3216) Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] Receiver's instance variables: bounds: 326@214 corner: 342@230 owner: a PasteUpMorph(1622) [world] submorphs: #() fullBounds: 326@214 corner: 342@230 color: Color blue extension: a MorphExtension (539) [eventHandler = an EventHandler] mouseFocus: nil keyboardFocus: a PluggableButtonMorphPlus(3403) eventListeners: nil mouseListeners: nil keyboardListeners: nil mouseClickState: nil mouseOverHandler: a MouseOverHandler lastMouseEvent: [326@214 mouseUp 58531 nil] targetOffset: 28@20 damageRecorder: a DamageRecorder cacheCanvas: nil cachedCanvasHasHoles: true temporaryCursor: nil temporaryCursorOffset: nil hardwareCursor: nil hasChanged: true savedPatch: nil userInitials: '' lastEventBuffer: #(1 58531 326 214 0 0 0 1) lastKeyScanCode: 13 combinedChar: nil HandMorph>>handleEvent: Receiver: a HandMorph(3216) Arguments and temporary variables: anEvent: [223@85 mouseOver nil nil] evt: [223@85 mouseOver nil nil] ofs: nil Receiver's instance variables: bounds: 326@214 corner: 342@230 owner: a PasteUpMorph(1622) [world] submorphs: #() fullBounds: 326@214 corner: 342@230 color: Color blue extension: a MorphExtension (539) [eventHandler = an EventHandler] mouseFocus: nil keyboardFocus: a PluggableButtonMorphPlus(3403) eventListeners: nil mouseListeners: nil keyboardListeners: nil mouseClickState: nil mouseOverHandler: a MouseOverHandler lastMouseEvent: [326@214 mouseUp 58531 nil] targetOffset: 28@20 damageRecorder: a DamageRecorder cacheCanvas: nil cachedCanvasHasHoles: true temporaryCursor: nil temporaryCursorOffset: nil hardwareCursor: nil hasChanged: true savedPatch: nil userInitials: '' lastEventBuffer: #(1 58531 326 214 0 0 0 1) lastKeyScanCode: 13 combinedChar: nil MouseOverHandler>>processMouseOver: Receiver: a MouseOverHandler Arguments and temporary variables: <<error during printing> Receiver's instance variables: mouseOverMorphs: an Array(a PluggableButtonMorphPlus(1300) an OBButtonBar(63) a...etc... enteredMorphs: nil overMorphs: nil leftMorphs: nil HandMorph>>handleEvent: Receiver: a HandMorph(3216) Arguments and temporary variables: anEvent: [223@85 mouseUp 12694 nil] evt: [223@85 mouseUp 12694 nil] ofs: nil Receiver's instance variables: bounds: 326@214 corner: 342@230 owner: a PasteUpMorph(1622) [world] submorphs: #() fullBounds: 326@214 corner: 342@230 color: Color blue extension: a MorphExtension (539) [eventHandler = an EventHandler] mouseFocus: nil keyboardFocus: a PluggableButtonMorphPlus(3403) eventListeners: nil mouseListeners: nil keyboardListeners: nil mouseClickState: nil mouseOverHandler: a MouseOverHandler lastMouseEvent: [326@214 mouseUp 58531 nil] targetOffset: 28@20 damageRecorder: a DamageRecorder cacheCanvas: nil cachedCanvasHasHoles: true temporaryCursor: nil temporaryCursorOffset: nil hardwareCursor: nil hasChanged: true savedPatch: nil userInitials: '' lastEventBuffer: #(1 58531 326 214 0 0 0 1) lastKeyScanCode: 13 combinedChar: nil HandMorph>>processEvents Receiver: a HandMorph(3216) Arguments and temporary variables: evt: [223@85 mouseUp 12694 nil] evtBuf: #(1 12694 223 85 0 0 0 1) type: 1 hadAny: false Receiver's instance variables: bounds: 326@214 corner: 342@230 owner: a PasteUpMorph(1622) [world] submorphs: #() fullBounds: 326@214 corner: 342@230 color: Color blue extension: a MorphExtension (539) [eventHandler = an EventHandler] mouseFocus: nil keyboardFocus: a PluggableButtonMorphPlus(3403) eventListeners: nil mouseListeners: nil keyboardListeners: nil mouseClickState: nil mouseOverHandler: a MouseOverHandler lastMouseEvent: [326@214 mouseUp 58531 nil] targetOffset: 28@20 damageRecorder: a DamageRecorder cacheCanvas: nil cachedCanvasHasHoles: true temporaryCursor: nil temporaryCursorOffset: nil hardwareCursor: nil hasChanged: true savedPatch: nil userInitials: '' lastEventBuffer: #(1 58531 326 214 0 0 0 1) lastKeyScanCode: 13 combinedChar: nil [] in WorldState>>doOneCycleNowFor: Receiver: a WorldState Arguments and temporary variables: <<error during printing> Receiver's instance variables: hands: an Array(a HandMorph(3216)) viewBox: 0@0 corner: 1216@771 canvas: a FormCanvas on: DisplayScreen(1216x771x32) damageRecorder: a DamageRecorder stepList: a Heap(StepMessage(#stepAt: -> 3PButton(#toggleSelected 298))(3PButto...etc... lastStepTime: 58514 lastStepMessage: nil lastCycleTime: 58534 commandHistory: a CommandHistory alarms: a Heap() lastAlarmTime: 58514 Array(SequenceableCollection)>>do: Receiver: an Array(a HandMorph(3216)) Arguments and temporary variables: aBlock: [closure] in WorldState>>doOneCycleNowFor: index: 1 indexLimiT: 1 Receiver's instance variables: an Array(a HandMorph(3216)) WorldState>>handsDo: Receiver: a WorldState Arguments and temporary variables: aBlock: [closure] in WorldState>>doOneCycleNowFor: Receiver's instance variables: hands: an Array(a HandMorph(3216)) viewBox: 0@0 corner: 1216@771 canvas: a FormCanvas on: DisplayScreen(1216x771x32) damageRecorder: a DamageRecorder stepList: a Heap(StepMessage(#stepAt: -> 3PButton(#toggleSelected 298))(3PButto...etc... lastStepTime: 58514 lastStepMessage: nil lastCycleTime: 58534 commandHistory: a CommandHistory alarms: a Heap() lastAlarmTime: 58514 WorldState>>doOneCycleNowFor: Receiver: a WorldState Arguments and temporary variables: aWorld: a PasteUpMorph(1622) [world] Receiver's instance variables: hands: an Array(a HandMorph(3216)) viewBox: 0@0 corner: 1216@771 canvas: a FormCanvas on: DisplayScreen(1216x771x32) damageRecorder: a DamageRecorder stepList: a Heap(StepMessage(#stepAt: -> 3PButton(#toggleSelected 298))(3PButto...etc... lastStepTime: 58514 lastStepMessage: nil lastCycleTime: 58534 commandHistory: a CommandHistory alarms: a Heap() lastAlarmTime: 58514 WorldState>>doOneCycleFor: Receiver: a WorldState Arguments and temporary variables: aWorld: a PasteUpMorph(1622) [world] Receiver's instance variables: hands: an Array(a HandMorph(3216)) viewBox: 0@0 corner: 1216@771 canvas: a FormCanvas on: DisplayScreen(1216x771x32) damageRecorder: a DamageRecorder stepList: a Heap(StepMessage(#stepAt: -> 3PButton(#toggleSelected 298))(3PButto...etc... lastStepTime: 58514 lastStepMessage: nil lastCycleTime: 58534 commandHistory: a CommandHistory alarms: a Heap() lastAlarmTime: 58514 PasteUpMorph>>doOneCycle Receiver: a PasteUpMorph(1622) [world] Arguments and temporary variables: Receiver's instance variables: bounds: 0@0 corner: 1216@771 owner: nil submorphs: an Array(a TaskbarMorph(3095) a SystemWindow(3034) a SystemWindow(21...etc... fullBounds: nil color: (Color r: 0.97 g: 0.98 b: 1.0) extension: a MorphExtension (2543) [eventHandler = an EventHandler] [other: (...etc... borderWidth: 0 borderColor: (Color r: 0.03 g: 0.02 b: 0.0) presenter: a Presenter (1246) model: a MorphicModel(1926) cursor: 1 padding: 3 backgroundMorph: nil isPartsBin: nil autoLineLayout: false indicateCursor: nil resizeToFit: nil wantsMouseOverHalos: nil worldState: a WorldState griddingOn: nil [] in Project class>>spawnNewProcess Receiver: Project Arguments and temporary variables: Receiver's instance variables: superclass: Model methodDict: a MethodDictionary(size 179) format: 172 instanceVariables: #('world' 'changeSet' 'transcript' 'parentProject' 'previous...etc... organization: ('*Polymorph-Widgets' assureTaskbarPresenceMatchesPreference crea...etc... subclasses: nil name: #Project classPool: a Dictionary(#AllProjects->an OrderedCollection(a Project(<no name -...etc... sharedPools: nil environment: Smalltalk category: #'System-Support' traitComposition: {} localSelectors: nil [] in BlockClosure>>newProcess Receiver: [closure] in Project class>>spawnNewProcess Arguments and temporary variables: Receiver's instance variables: outerContext: Project class>>spawnNewProcess startpc: 53 numArgs: 0 --- The full stack --- UndefinedObject(Object)>>doesNotUnderstand: #includes: MouseOverHandler>>noticeMouseOver:event: HandMorph>>noticeMouseOver:event: QuestionDialogWindow(Morph)>>handleMouseOver: MouseEvent>>sentTo: QuestionDialogWindow(Morph)>>handleEvent: MorphicEventDispatcher>>dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: QuestionDialogWindow(Morph)>>processEvent:using: MorphicEventDispatcher>>dispatchDefault:with: MorphicEventDispatcher>>dispatchEvent:with: PasteUpMorph(Morph)>>processEvent:using: PasteUpMorph>>processEvent:using: PasteUpMorph(Morph)>>processEvent: HandMorph>>sendEvent:focus:clear: HandMorph>>sendMouseEvent: HandMorph>>handleEvent: MouseOverHandler>>processMouseOver: HandMorph>>handleEvent: HandMorph>>processEvents [] in WorldState>>doOneCycleNowFor: Array(SequenceableCollection)>>do: WorldState>>handsDo: WorldState>>doOneCycleNowFor: WorldState>>doOneCycleFor: PasteUpMorph>>doOneCycle [] in Project class>>spawnNewProcess [] in BlockClosure>>newProcess