<html><body bgcolor="#FFFFFF"><div><div>It looks like you have a nil object that's getting sent the message #categories. </div><div><br></div><div>If you dive in with the debugger, somewhere near the top, you should be able to find your nil object. Nil has a way of begetting nil sometimes, so you may need to walk down the stack tract to find original the source of the error. </div><div><br></div><div>If all else fails, you should be able to recover most if not all of your code from your .changes file.</div><div><br>On Nov 27, 2010, at 4:24 AM, <a href="mailto:recursive68@gmail.com"><a href="mailto:recursive68@gmail.com">recursive68@gmail.com</a></a> wrote:<br><br></div><div></div><blockquote type="cite"><div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; ">Hi<div><br></div><div>I've been using a Squeak 4.1 and Seaside 3.0 and I think I must have stuffed something up as now getting the following error:</div>
<div><br></div><div><div>MessageNotUnderstood: UndefinedObject>>categories</div><div>Proceed</div><div>Abandon</div><div>Debug</div><div>Create</div><div>UndefinedObject(Object)>>doesNotUnderstand: #categories</div>
<div>Browser>>messageCategoryList</div><div>PluggableListMorphPlus(PluggableListMorph)>>getList</div><div>PluggableListMorphPlus(PluggableListMorph)>>verifyContents</div><div>[] in Browser(Object)>>updateListsAndCodeIn:</div>
<div>Array(SequenceableCollection)>>do:</div><div>Browser(Object)>>updateListsAndCodeIn:</div><div>Browser(CodeHolder)>>updateListsAndCodeIn:</div><div>Browser(CodeHolder)>>modelWakeUpIn:</div><div>
PluggableSystemWindow(SystemWindow)>>activateWindow</div><div>PluggableSystemWindow(SystemWindow)>>activate</div><div>SystemWindow class>>noteTopWindowIn:</div><div>PluggableSystemWindow(SystemWindow)>>delete</div>
<div>PluggableSystemWindow>>delete</div><div>MorphicToolBuilder>>close:</div><div>Debugger>>debug</div><div>PluggableButtonMorphPlus(PluggableButtonMorph)>>performAction</div><div>PluggableButtonMorphPlus>>performAction</div>
<div>[] in PluggableButtonMorphPlus(PluggableButtonMorph)>>mouseUp:</div><div>Array(SequenceableCollection)>>do:</div><div><br></div><div>UndefinedObject(Object)>>doesNotUnderstand: #categories</div><div>
Browser>>messageCategoryList</div><div>PluggableListMorphPlus(PluggableListMorph)>>getList</div><div>PluggableListMorphPlus(PluggableListMorph)>>verifyContents</div><div>[] in Browser(Object)>>updateListsAndCodeIn:</div>
<div>Array(SequenceableCollection)>>do:</div><div>Browser(Object)>>updateListsAndCodeIn:</div><div>Browser(CodeHolder)>>updateListsAndCodeIn:</div><div>Browser(CodeHolder)>>modelWakeUpIn:</div><div>
PluggableSystemWindow(SystemWindow)>>activateWindow</div><div>PluggableSystemWindow(SystemWindow)>>activate</div><div>SystemWindow class>>noteTopWindowIn:</div><div>PluggableSystemWindow(SystemWindow)>>delete</div>
<div>PluggableSystemWindow>>delete</div><div>MorphicToolBuilder>>close:</div><div>Debugger>>debug</div><div>PluggableButtonMorphPlus(PluggableButtonMorph)>>performAction</div><div>PluggableButtonMorphPlus>>performAction</div>
<div>[] in PluggableButtonMorphPlus(PluggableButtonMorph)>>mouseUp:</div><div>Array(SequenceableCollection)>>do:</div><div><br></div></div><div>I would just use a new copy of the image but I need to fileout some package I've written but this error is stopping me from doing so. Any ideas ?</div>
<div><br></div><div>Thanks</div></span>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Beginners mailing list</span><br><span><a href="mailto:Beginners@lists.squeakfoundation.org"><a href="mailto:Beginners@lists.squeakfoundation.org">Beginners@lists.squeakfoundation.org</a></a></span><br><span><a href="http://lists.squeakfoundation.org/mailman/listinfo/beginners"><a href="http://lists.squeakfoundation.org/mailman/listinfo/beginners">http://lists.squeakfoundation.org/mailman/listinfo/beginners</a></a></span><br></div></blockquote></div><div></div></body></html>