"Unable to Load World!" Who helps me plz :((

[ptc1760]

My presentation is coming ahead next week,
And few days ago I opened the final project that I had done one day before, and it appears that error ( I dont understand at all what happed with my project and my Alice program.
can anyone help me fix this problem plz? Thank so much!

This is the error message:

Unable to load world




Alice version: 2.2  08/05/2011



Throwable that caused the error:

java.lang.NullPointerException

	at edu.cmu.cs.stage3.alice.core.geometry.Text3D.updateExtrusion(Text3D.java:87)

	at edu.cmu.cs.stage3.alice.core.geometry.Text3D.propertyChanged(Text3D.java:77)

	at edu.cmu.cs.stage3.alice.core.Element.propertyChanged(Element.java:265)

	at edu.cmu.cs.stage3.alice.core.Property.onChanged(Property.java:423)

	at edu.cmu.cs.stage3.alice.core.Property.onSet(Property.java:438)

	at edu.cmu.cs.stage3.alice.core.Property.set(Property.java:455)

	at edu.cmu.cs.stage3.alice.core.Property.decodeObject(Property.java:626)

	at edu.cmu.cs.stage3.alice.core.Property.decode(Property.java:641)

	at edu.cmu.cs.stage3.alice.core.Element.load(Element.java:1460)

	at edu.cmu.cs.stage3.alice.core.Element.load(Element.java:1477)

	at edu.cmu.cs.stage3.alice.core.Element.load(Element.java:1477)

	at edu.cmu.cs.stage3.alice.core.Element.load(Element.java:1525)

	at edu.cmu.cs.stage3.alice.authoringtool.dialog.LoadElementProgressPane.construct(LoadElementProgressPane.java:37)

	at edu.cmu.cs.stage3.progress.ProgressPane$2.run(ProgressPane.java:84)

	at java.lang.Thread.run(Thread.java:662)

[x2495iiii]

I'm sorry, but I can't fix it. It looks like one of the 3d text objects is not loading properly, but I don't know how to repair or remove the object outside of Alice.

Dennis Cosgrove might, though.

I e-mailed him with your world, I'll let you know if/when he responds.

[ptc1760]

Originally Posted by x2495iiii

I'm sorry, but I can't fix it. It looks like one of the 3d text objects is not loading properly, but I don't know how to repair or remove the object outside of Alice.

Dennis Cosgrove might, though.

I e-mailed him with your world, I'll let you know if/when he responds.

Thank u very much for your care!
It seems like that all a2w files are zipped files. but when i extracted, editted with notepad, and then zipped it again, it didn't work anymore
I also opened it with Netbeans, but the program didnt allow me to change anything.

[Mr Kidnapper]

Fixed. When it asks you to "Set all values to none", just press yes. By the way, I removed your objects "replayString" and "noticeString." It seems they were causing an error in conjunction.

[ptc1760]

Originally Posted by Mr Kidnapper

Fixed. When it asks you to "Set all values to none", just press yes. By the way, I removed your objects "replayString" and "noticeString." It seems they were causing an error in conjunction.

so wonderful, bro! thank a lot!
if u were here, we would go for some coffee immediately!
see u around!

[x2495iiii]

Ha. Dennis just responded with his own fixed copy.

Good job, Mr. Kidnapper.

For any future posters, blank text in 3d text objects causes Alice worlds to not load properly. Always keep placeholder text in the text property to avoid this.

[waqar]

some times alice dont give that option "Set all values to none"
if it doesnot give this option is there anyother way to do it?

[ptc1760]

You can open all a2w files with Winrar, then extract files inside which need editing (it's often elementData.xml), then edit with a text editor, finally drag and drop the files back to the winrar's windows, save changes.

By this way, u can change the initial value of variables and avoid the error message