<font color='black' size='2' face='Tahoma, Arial, Helvetica, sans-serif'>Below is the print out of an error we received while my student was creating his story in Alice. He would have been unable to save his work!
<div>We figured it out, and changed it so he could save it, but we wonder why it had this problem, so we don't cause it in the future.</div>

<div>The error seems to have occurred since he changed the Texture of the orb (circle class) to be moon texture. &nbsp;<span style="font-size: 10pt;">When he changed the texture back, it was able to save with no error.</span></div>

<div><span style="font-size: 10pt;">Is this a known Alice error?&nbsp;</span></div>

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<div class="gmail_quote">---------- Forwarded message ----------<br>
From: <b class="gmail_sendername">aryeh miller</b> <span dir="ltr">&lt;<a href="mailto:mannaryeh02@gmail.com">mannaryeh02@gmail.com</a>&gt;</span><br>
Date: Tue, Dec 9, 2014 at 5:27 PM<br>
Subject: alice error<br>
To: <a href="mailto:lcohen@yeshiva.edu">lcohen@yeshiva.edu</a><br>
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<div>An error has occurred while attempting to save your world.</div>

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<div>This is a critical situation that needs to be dealt with immediately.</div>

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<div>NOTE: Pleasecheck for a directory co-located with&nbsp;</div>

<div>your world named "Backups of &lt;YourWorldNameHere&gt;" which&nbsp;</div>

<div>should contain previously saved versions of your world.</div>

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<div>We at the Alice Team apologize for any work you have lost</div>

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<div>Please accept our sincerest apologies.&nbsp; The Alice Team.</div>

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<div>Alice version: 2.4.2 (July 2014)</div>

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<div><a target="_blank" href="http://os.name">os.name</a>: Windows 7</div>

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<div>os.version: 6.1</div>

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<div>os.arch: x86</div>

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<div><a target="_blank" href="http://java.vm.name">java.vm.name</a>: Java HotSpot(TM) Client VM</div>

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<div>java.vm.version: 20.0-b11</div>

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<div>user.dir: C:\Users\Public\Desktop\Required</div>

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<div>Throwable that caused the error:</div>

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<div>java.lang.RuntimeException: Could not find ancestor: world, class: class edu.cmu.cs.stage3.alice.core.World</div>

<div>Key:&nbsp;</div>

<div>Details: <span style="white-space:pre-wrap">        </span>circle class edu.cmu.cs.stage3.alice.core.Model</div>

<div><span style="white-space:pre-wrap">        </span>moonTexture class edu.cmu.cs.stage3.alice.core.TextureMap</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.internalGetKey(Element.java:789)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.internalGetKey(Element.java:792)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.getKey(Element.java:804)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.reference.DefaultReferenceGenerator.generateReference(DefaultReferenceGenerator.java:39)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Property.encodeReference(Property.java:690)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Property.encode(Property.java:720)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.internalStore(Element.java:1688)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.internalStore(Element.java:1744)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.store(Element.java:1790)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.store(Element.java:1803)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.store(Element.java:1806)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.core.Element.store(Element.java:1838)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.alice.authoringtool.dialog.StoreElementProgressPane.construct(StoreElementProgressPane.java:47)</div>

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<div><span style="white-space:pre-wrap">        </span>at edu.cmu.cs.stage3.progress.ProgressPane$2.run(ProgressPane.java:86)</div>

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<div><span style="white-space:pre-wrap">        </span>at java.lang.Thread.run(Thread.java:662)</div>

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