Hello! I think it's after yum-upgradeing from FC5 to FC6, I get lots of error while running the above command. What can I do to fix this? The errors are as follows: output is braillewave-34 Using catalogs: /etc/sgml/sgml-docbook-4.2-1.0-30.1.cat Using stylesheet: /usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl#html Working on: /home/lrs/tmp/bwman/braillewave-34.sgml jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:5:95:W: cannot generate system identifier for public text "-//Norman Walsh//DOCUMENT DocBook HTML Stylesheet//EN" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:39:37:E: no style-specification or external-specification with ID "DOCBOOK" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:963:5:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:914:5:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:916:4:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:917:3:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:922:9:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:923:17:E: reference to undefined variable "question-answer-label" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:918:9:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:896:3:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:897:2:E: reference to undefined variable "$runinhead$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:884:3:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:887:4:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:870:19:E: reference to undefined variable "$italic-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:869:17:E: reference to undefined variable "$charseq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:868:17:E: reference to undefined variable "$mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:867:20:E: reference to undefined variable "$italic-mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:866:18:E: reference to undefined variable "$mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:865:17:E: reference to undefined variable "$bold-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:864:19:E: reference to undefined variable "$bold-mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:863:21:E: reference to undefined variable "$bold-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:862:22:E: reference to undefined variable "$bold-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:861:18:E: reference to undefined variable "$bold-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:860:19:E: reference to undefined variable "$bold-mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:859:18:E: reference to undefined variable "$bold-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:858:20:E: reference to undefined variable "$bold-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:857:19:E: reference to undefined variable "$mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:856:19:E: reference to undefined variable "$mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:855:18:E: reference to undefined variable "$bold-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:854:22:E: reference to undefined variable "$mono-seq$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:673:5:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:686:4:E: reference to undefined variable "make-table-endnotes" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:672:52:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:671:52:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:670:52:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:668:27:E: reference to undefined variable "$table-width$" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:663:33:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:662:10:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:660:32:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:659:32:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:845:3:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:838:5:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:972:4:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:984:9:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:985:15:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:979:9:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:980:15:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:982:21:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:830:7:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:822:7:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:812:2:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:814:8:E: "element" is not the name of any flow object class jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:810:7:E: reference to undefined variable "normalize" jade:/usr/share/sgml/docbook/utils-0.6.14/docbook-utils.dsl:808:25:E: reference to undefined variable "author-string" Done. Lars