Scratch
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#1 2012-01-23 11:44:59
- USNteacher
- New Scratcher
- Registered: 2012-01-23
- Posts: 3
Unknown Pixel Depth: 14
I have recently installed Scratch version 1.4 in my computer lab, and my students frequently receive the Unknown Pixel Depth error when they create a sprite or even try to import some of the free sprites available with the downloads. Changing costumes and backgrounds also often creates this error such that the students cannot save their work and are forced to abandon their efforts.
I am running Windows XP SP3 with all recent updates applied. I have tried re-installing Scratch 1.4 with the same results. The screen resolution is set at 1024x768 and the color is set to the Highest (32 bit)
At this point, the students are working with a minimal set of sprites and backgrounds and we have forsaken the ability to edit or create new images.
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. Can you post a screenshot of this error#3 2012-01-23 12:46:11
Re: Unknown Pixel Depth: 14
This is a bug I have never encountered or heard of for the past years. So there has to be something uncommon about your install.
Do all of your computers in your lab have the same hardware? If they don't, do you encounter the problem on the machines with different hardware too?
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#4 2012-01-23 12:50:25
- USNteacher
- New Scratcher
- Registered: 2012-01-23
- Posts: 3
Re: Unknown Pixel Depth: 14
When I try to import a knwon sprite from the default library of sprites, I get the following error message:
unknown pixel depth: 14
Color class(Object)>>error:
Color class>>colorFromPixelValue:depth:
[] in Form>>colorsUsed
Bitmap(SeqenceableCollection)>>withIndexDo:
Bitmap(SeqenceableCollection)>>doWithIndex:
Form>>colorsUsed
Form>>couldBeColorReduced
ImageMedia>>form:
[] in ScratchSpriteMorph(ScriptableScratchMorph)>>importImage
OrderedCollection>>do:
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#5 2012-01-23 13:57:53
- USNteacher
- New Scratcher
- Registered: 2012-01-23
- Posts: 3
Re: Unknown Pixel Depth: 14
I am not aware of anything out of the norm for my system install. We are running Windows XP with Office 2010. I have some educational software installed on the computers, but nothing that is unusual or is giving me any other errors. I have no external devices but the students are running the scripts from a file server. I put a project onto the file server for the students to open. I have made a discovery. If the project is first saved to the local disk, in the Scratch Projects folder within My Documents, then the error goes away. It seems that the disconnect is trying to work with projects that are not local to the computer.
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#6 2012-01-24 01:53:09
Re: Unknown Pixel Depth: 14
USNteacher wrote:
I am not aware of anything out of the norm for my system install. We are running Windows XP with Office 2010. I have some educational software installed on the computers, but nothing that is unusual or is giving me any other errors. I have no external devices but the students are running the scripts from a file server. I put a project onto the file server for the students to open. I have made a discovery. If the project is first saved to the local disk, in the Scratch Projects folder within My Documents, then the error goes away. It seems that the disconnect is trying to work with projects that are not local to the computer.
what file server is it?
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#7 2012-01-24 18:21:38
Re: Unknown Pixel Depth: 14
Hmm. Do the computers have read (and write?) access to Scratch's media library? is the media library on the network too, or is it installed on each PC individually? Does the problem also occur for resources that pupils found somewhere else, on the internet for example?
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