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</head><body><p>David<br></p><p><br></p><p>I guess you should take a closer look at this part of the Stack:<br></p><p><br></p><p>OrderedCollection(SequenceableCollection)>>#first self=OrderedCollection() </p><p>OrderedCollection>>#first self=OrderedCollection() TM470User>>#carCardForRoadNumber: self=a TM470User id='BM:33549' </p><p>[] in TM470CurrentTrain>>#constructCarsUsing: self=a TM470CurrentTrain aUser=a TM470User carArray=OrderedCollection('BM:33549' 'BAR:6724' 'CP:240000' </p><p><br></p><p>Seems like you try to use the first element in an empty Collection. Not related to Seaside, afaik.<br></p><p><br></p><p>Joachim<br></p><p><br></p><blockquote type="cite">David Pennington <david@totallyobjects.com> hat am 19. Dezember 2017 um 14:30 geschrieben: <br> <br>I am testing my Seaside development - Instantiations VAST 9.0 - and I am getting "Signal: 1" as an error. The problem is that the stack doesn't tell me where the error is, or at least not that I can understand. I attach a screen shot and the stack trace. Can anyone help me understand this please?<div><div><br></div>David<div>Totally Objects</div></div><div> <br></div></blockquote><p class="default-style"><br> </p><blockquote type="cite"><br><hr><pre>Message sent using Winmail Mail Server</pre>_______________________________________________ <br>seaside mailing list <br>seaside@lists.squeakfoundation.org <br>http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside <br></blockquote><p class="default-style"><br> </p></body></html>