Replace "at once" with "both". Replace "the previous explanation of namespaces" with "the example of namespaces in Example 2-1". Replace "content-encoding" with "content encoding". The hyphen implies the "Content-Encoding" HTTP header, and here I am referring instead to the general concept of content encoding. As of this current errata update, the RPC::XMLSimple package has not yet been released to CPAN. Until it is released, none of the examples using this module can be run as presented. Replace "resolve_name" (in the error message) with "get_data". The last character of this line, ">", should be replaced with "/>" in order to make it valid XML. Replace "soap:address" with "http:address". Replace "more" with "most". Replace "different" with "difference". Replace "out of hand" with "out-of-band". Replace "sequence," with "sequence" (remove the comma). Replace "Description" with "Definition". The script should start with the line, "#!/usr/bin/perl -w" before the first line of actual code. The script should start with the line, "#!/usr/bin/perl -w" before the first line of actual code. The script should start with the line, "#!/usr/bin/perl -w" before the first line of actual code. Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Append " -w" after "perl". Replace "#!perl" with "#!/usr/bin/perl". This and the identical changes later are for consistency with other code examples. Replace "#!perl" with "#!/usr/bin/perl". Replace "#!perl" with "#!/usr/bin/perl". Append " -w" after "perl".