<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">For those of you that haven’t seen the “Metacello load error” conversation between Dale and me, there seems to be a bug in DeflateStream. I’m quoting myself from the other thread:<div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><br class=""></blockquote><blockquote type="cite" class="">I've figured it out. Your were right, the newest Cog VM doesn’t exhibit the problem. The problem seems to be the method ZipWriteStream&gt;&gt;deflateBlock:chainLength:goodMatch:. The primitive in that method fails in 4.6 only when I open the 4.6 image with the VM packaged with the 4.5 all-in-one app ('Croquet Closure Cog VM [CoInterpreter VMMaker.oscog-eem.331] 4.5’). The fallback method generates an error.<br class="">This is reproducible when using the fallback instead of the primitive with the other VM and a 4.5 image too, so there is definitely something wrong with the Zip implementation. Here’s a snippet for reproducing the problem:<br class=""><br class="">ZipWriteStream removeSelector: #deflateBlock:chainLength:goodMatch:.<br class=""><br class="">(Installer monticello http: '<a href="http://www.squeaksource.com/MetacelloRepository'" class="">http://www.squeaksource.com/MetacelloRepository'</a>)<br class=""><span class="Apple-tab-span" style="white-space: pre;">        </span>package: 'Gofer-Core-lr.115.mcz';<br class=""><span class="Apple-tab-span" style="white-space: pre;">        </span>install.<br class=""><br class="">(Smalltalk at: #Gofer) new<br class=""><span class="Apple-tab-span" style="white-space: pre;">        </span>url: '<a href="http://seaside.gemstone.com/ss/metacello'" class="">http://seaside.gemstone.com/ss/metacello'</a>;<br class=""><span class="Apple-tab-span" style="white-space: pre;">        </span>addPackage: 'ConfigurationOfMetacello';<br class=""><span class="Apple-tab-span" style="white-space: pre;">        </span>load<br class=""><blockquote type="cite" class=""></blockquote></blockquote><div class=""><br class=""><br class="">Cheers,<br class="">Max</div></div></body></html>