From Talk:Guidelines and HOWTOs/Build from source Hi, I would like to build KF5, but I've got error and I don't know, what with this. Could anybody help, please. Error message: Built target klanguagebuttontest_automoc man-preparetips.1.docbook:5: warning: failed to load external entity "dtd/kdex.dtd" ]> ^ man-preparetips.1.docbook:7: parser error : Entity 'language' not defined <refentry lang="&language;"> ^ man-preparetips.1.docbook:7: validity error : Validation failed: no DTD found ! <refentry lang="&language;"> MoreHistory View source Link toTomas (talk) 08:45, 22 December 2013 You need to export XDG_DATA_DIRS to your installprefix/share. Parent MoreHistory View source Link toDfaure (talk) 00:13, 6 February 2014 Retrieved from "https://community.kde.org/Thread:Talk:Frameworks/Building/KF5_build_error_kdex.dtd#KF5_build_error_kdex.dtd_68"