We’ve been discussing that and are evaluating different approaches to solving this problem. We are pretty sure (but can’t guarantee) that there are no format differences between 1.9 and 1.9.3. So feel free to remove the error and continue. It will probably work (just expect that it might not). Cheers, Max On 06.03.2014, at 17:23, Sven Van Caekenberghe <sven@stfx.eu> wrote:

Well, https://pharo.fogbugz.com/f/cases/13000/Integrate-Fuel-1-9-3 was just integrated. Why Fuel is so picky about minor versions, and if that matters, I don't know.

On 06 Mar 2014, at 17:14, roberto.minelli@usi.ch wrote:

...

Hi,

I just run into an error while materializing an object with Fuel. Unexpected stream version 19 should be 193.

Do you have any idea why? I noticed that the fuel #stable version is now 1.9.3 instead of 1.9.1 which was the version I used for export. When I loaded Fuel 1.9.1 despite getting some errors, I managed to import my objects.

Do you guys have an idea why?

Thanks in advance, here is the stack trace.

Roby

FLMaterializer>>verifyVersionFrom: FLMaterializer>>materializeFrom: FLMaterializer class>>materializationFromFileNamed: in Block: [ :aFileStream | self newDefault materializeFrom: ...etc... StandardFileStream class(FileStream class)>>detectFile:do: in Block: [ anotherBlock value: file ] BlockClosure>>ensure: StandardFileStream class(FileStream class)>>detectFile:do: StandardFileStream class(FileStream class)>>oldFileNamed:do: FLMaterializer class>>materializationFromFileNamed: FLMaterializer class>>materializeFromFileNamed: DFPharoMenu class>>importSessionFromFuelPath: DFPharoMenu class>>importAllSessionsFromFolder in Block: [ :bar | ... BlockClosure>>cull: Job>>run in Block: [ result := block cull: self ] BlockClosure>>on:do: Job>>run in Block: [ ... BlockClosure>>ensure: Job>>run MorphicUIManager(UIManager)>>displayProgress:from:to:during: ByteString(String)>>displayProgressAt:from:to:during: DFPharoMenu class>>importAllSessionsFromFolder DFPharoMenu class>>menuCommandOn: in Block: [ self importAllSessionsFromFolder ] BlockClosure>>cull: ToggleMenuItemMorph(MenuItemMorph)>>invokeWithEvent: in Block: [ ... BlockClosure>>ensure: CursorWithMask(Cursor)>>showWhile: ToggleMenuItemMorph(MenuItemMorph)>>invokeWithEvent: ToggleMenuItemMorph(MenuItemMorph)>>mouseUp: ToggleMenuItemMorph(MenuItemMorph)>>handleMouseUp: MouseButtonEvent>>sentTo: ToggleMenuItemMorph(Morph)>>handleEvent:

On 07.03.2014, at 11:25, roberto.minelli@usi.ch wrote:

Hi Max,

Thanks for the answer in the first place. Besides the “unexpected stream”, I am also experiencing some weird behavior about memory consumption.

I have a folder with 70 fuel files, ranging from few kb to 40MB. Each file represents a development session with some of my objects inside. I have a method that scans that directory, with sub-directories, and materializes all the objects in the image.

Until last month, this worked like a charm but now, every time I launch it I got an OutOfMemory problem with the VM.

That’s not goode. I have no idea where that could come from though. Could I get my hands on one of those files that work with 1.9.1 but not with 1.9.3?

Do you have any idea how this is possible? I tried to increase heap size, pass the —memory option to the VM, force garbage collection but the problem persists. I also tried to load the old Fuel (1.9.1), the version I was using to export. Still no luck.

Thanks in advance for any help, Roberto

I am experiencing something really wired On Mar 6, 2014, at 5:33 PM, Max Leske <maxleske@gmail.com> wrote:

...

We’ve been discussing that and are evaluating different approaches to solving this problem. We are pretty sure (but can’t guarantee) that there are no format differences between 1.9 and 1.9.3. So feel free to remove the error and continue. It will probably work (just expect that it might not).

Cheers, Max

On 06.03.2014, at 17:23, Sven Van Caekenberghe <sven@stfx.eu> wrote:

...

Well, https://pharo.fogbugz.com/f/cases/13000/Integrate-Fuel-1-9-3 was just integrated. Why Fuel is so picky about minor versions, and if that matters, I don't know.

On 06 Mar 2014, at 17:14, roberto.minelli@usi.ch wrote:

...

Hi,

I just run into an error while materializing an object with Fuel. Unexpected stream version 19 should be 193.

Do you have any idea why? I noticed that the fuel #stable version is now 1.9.3 instead of 1.9.1 which was the version I used for export. When I loaded Fuel 1.9.1 despite getting some errors, I managed to import my objects.

Do you guys have an idea why?

Thanks in advance, here is the stack trace.

Roby

FLMaterializer>>verifyVersionFrom: FLMaterializer>>materializeFrom: FLMaterializer class>>materializationFromFileNamed: in Block: [ :aFileStream | self newDefault materializeFrom: ...etc... StandardFileStream class(FileStream class)>>detectFile:do: in Block: [ anotherBlock value: file ] BlockClosure>>ensure: StandardFileStream class(FileStream class)>>detectFile:do: StandardFileStream class(FileStream class)>>oldFileNamed:do: FLMaterializer class>>materializationFromFileNamed: FLMaterializer class>>materializeFromFileNamed: DFPharoMenu class>>importSessionFromFuelPath: DFPharoMenu class>>importAllSessionsFromFolder in Block: [ :bar | ... BlockClosure>>cull: Job>>run in Block: [ result := block cull: self ] BlockClosure>>on:do: Job>>run in Block: [ ... BlockClosure>>ensure: Job>>run MorphicUIManager(UIManager)>>displayProgress:from:to:during: ByteString(String)>>displayProgressAt:from:to:during: DFPharoMenu class>>importAllSessionsFromFolder DFPharoMenu class>>menuCommandOn: in Block: [ self importAllSessionsFromFolder ] BlockClosure>>cull: ToggleMenuItemMorph(MenuItemMorph)>>invokeWithEvent: in Block: [ ... BlockClosure>>ensure: CursorWithMask(Cursor)>>showWhile: ToggleMenuItemMorph(MenuItemMorph)>>invokeWithEvent: ToggleMenuItemMorph(MenuItemMorph)>>mouseUp: ToggleMenuItemMorph(MenuItemMorph)>>handleMouseUp: MouseButtonEvent>>sentTo: ToggleMenuItemMorph(Morph)>>handleEvent: