Kde
KDE 沒有保存 mime 類型的文件關聯
我正在執行 Arch Linux 和 KDE，並且正在探索 mime 類型在我的系統上的行為（和行為不端）。
考慮這種 mime 類型的文件關聯。以下控制台輸出顯示我有 mime-type xml 定義文件，並且
.pub文件和 mime-type之間存在關聯application/vnd.ms-publisher。$ xdg-mime query filetype ~/.ssh/id_rsa_test.pub application/vnd.ms-publisher $ less mimeapps.list [Added Associations] application/vnd.ms-publisher=org.kde.kate.desktop; # find /usr -name vnd.ms-publisher.xml /usr/share/mime/application/vnd.ms-publisher.xml # less /usr/share/mime/application/vnd.ms-publisher.xml <?xml version="1.0" encoding="utf-8"?> <mime-type xmlns="http://www.freedesktop.org/standards/shared-mime-info" type="application/vnd.ms-publisher"> <!--Created automatically by update-mime-database. DO NOT EDIT!--> <sub-class-of type="application/x-ole-storage"/> <glob pattern="*.pub"/> </mime-type>（我不喜歡 ms-publisher 與我的 Linux 系統上的公鑰相關聯的事實，但這是另一個問題的主題。）
從上面可以看出，一切都井井有條。
接下來我決定為 Kate（文本編輯器）添加一個關聯來處理
.pub公鑰文件。我使用 KDE 系統設置 > 應用程序 > 文件關聯創建了它。這個螢幕截圖顯示了我所做的。當我點擊“應用”時，進度對話框會短暫出現，並且操作似乎已成功。
然而，在重新訪問同一個對話框時，我剛剛添加的 Kate 關聯消失了。“應用程序優先順序”下的框為空。
我的問題是：是什麼導致此文件關聯無法保存，我該如何解決？
檢查
journalctl -r我發現以下消息（以相反的順序）。所有行都以前綴 simlarl 開頭，Jan 31 17:24:18 laptop systemsettings5[20318]但我刪除了大部分以節省空間。Jan 31 17:24:19 laptop systemsettings5[20318]: Mimetype Comment Dirty: old= "Kindle book document" m_comment= "Amazon KF8 ebook format" Jan 31 17:24:19 laptop systemsettings5[20318]: Mimetype Comment Dirty: old= "ODB database" m_comment= "OpenDocument Database" Jan 31 17:24:19 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found Jan 31 17:24:19 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found Jan 31 17:24:19 laptop systemsettings5[20318]: ("services", "servicetypes", "xdgdata-mime", "apps") ... Jan 31 17:24:18 laptop systemsettings5[20318]: "application/vnd.ms-publisher" hasDefinitionFile: false kf5.kservice.sycoca: Service type not found: "audio/x-xm" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.presentation-template" kf5.kservice.sycoca: Service type not found: "text/x-rst" kf5.kservice.sycoca: Service type not found: "application/pdf" kf5.kservice.sycoca: Service type not found: "application/x-bzip" kf5.kservice.sycoca: Service type not found: "application/x-cue" kf5.kservice.sycoca: Service type not found: "image/x-rgb" kf5.kservice.sycoca: Service type not found: "application/x-gzpdf" kf5.kservice.sycoca: Service type not found: "application/x-cmakecache" kf5.kservice.sycoca: Service type not found: "image/x-sigma-x3f" kf5.kservice.sycoca: Service type not found: "application/x-tellico" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.spreadsheet-flat-xml" kf5.kservice.sycoca: Service type not found: "application/x-mswrite" kf5.kservice.sycoca: Service type not found: "application/x-t602" kf5.kservice.sycoca: Service type not found: "image/x-nikon-nef" kf5.kservice.sycoca: Service type not found: "video/x-flic" kf5.kservice.sycoca: Service type not found: "x-content/video-vcd" kf5.kservice.sycoca: Service type not found: "audio/flac" kf5.kservice.sycoca: Service type not found: "application/xspf+xml" kf5.kservice.sycoca: Service type not found: "image/svg+xml" kf5.kservice.sycoca: Service type not found: "application/x-tar" kf5.kservice.sycoca: Service type not found: "image/x-xpixmap" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.calc" kf5.kservice.sycoca: Service type not found: "application/gzip" kf5.kservice.sycoca: Service type not found: "application/x-zip-compressed-fb2" kf5.kservice.sycoca: Service type not found: "application/x-compressed-tar" kf5.kservice.sycoca: Service type not found: "audio/x-wavpack" kf5.kservice.sycoca: Service type not found: "video/vnd.rn-realvideo" kf5.kservice.sycoca: Service type not found: "image/x-pic" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.draw" kf5.kservice.sycoca: Service type not found: "audio/x-pn-realaudio-plugin" kf5.kservice.sycoca: Service type not found: "application/x-kexi-connectiondata" kf5.kservice.sycoca: Service type not found: "application/x-mobipocket-ebook" kf5.kservice.sycoca: Service type not found: "audio/ac3" kf5.kservice.sycoca: Service type not found: "application/vnd.openofficeorg.extension" kf5.kservice.sycoca: Service type not found: "image/x-win-bitmap" kf5.kservice.sycoca: Service type not found: "application/vnd.kde.okular-archive" kf5.kservice.sycoca: Service type not found: "application/x-zstd-compressed-tar" kf5.kservice.sycoca: Service type not found: "audio/mpeg" kf5.kservice.sycoca: Service type not found: "video/mlt-playlist" kf5.kservice.sycoca: Service type not found: "image/x-kde-raw" kf5.kservice.sycoca: Service type not found: "application/x-7z-compressed" kf5.kservice.sycoca: Service type not found: "audio/vnd.rn-realaudio" kf5.kservice.sycoca: Service type not found: "image/x-panasonic-rw" kf5.kservice.sycoca: Service type not found: "text/x-patch" kf5.kservice.sycoca: Service type not found: "application/x-kdenlivetitle" kf5.kservice.sycoca: Service type not found: "application/vnd.lotus-1-2-3" kf5.kservice.sycoca: Service type not found: "x-content/blank-cd" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-asf" kf5.kservice.sycoca: Service type not found: "video/quicktime" kf5.kservice.sycoca: Service type not found: "image/vnd.djvu" kf5.kservice.sycoca: Service type not found: "video/x-anim" kf5.kservice.sycoca: Service type not found: "text/plain" kf5.kservice.sycoca: Service type not found: "application/x-java-keystore" kf5.kservice.sycoca: Service type not found: "application/x-archive" kf5.kservice.sycoca: Service type not found: "application/x-sv4crc" kf5.kservice.sycoca: Service type not found: "application/vnd.appimage" kf5.kservice.sycoca: Service type not found: "application/vnd.visio" kf5.kservice.sycoca: Service type not found: "image/x-tga" kf5.kservice.sycoca: Service type not found: "application/x-zoom" kf5.kservice.sycoca: Service type not found: "image/heif" kf5.kservice.sycoca: Service type not found: "image/rle" kf5.kservice.sycoca: Service type not found: "text/csv" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-cab-compressed" kf5.kservice.sycoca: Service type not found: "application/vnd.lotus-wordpro" kf5.kservice.sycoca: Service type not found: "application/x-xar" kf5.kservice.sycoca: Service type not found: "audio/aac" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.template" kf5.kservice.sycoca: Service type not found: "image/x-icns" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.presentation" kf5.kservice.sycoca: Service type not found: "audio/x-tta" kf5.kservice.sycoca: Service type not found: "application/x-cbt" kf5.kservice.sycoca: Service type not found: "image/tiff" kf5.kservice.sycoca: Service type not found: "application/ogg" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-wpl" kf5.kservice.sycoca: Service type not found: "image/x-pentax-pef" kf5.kservice.sycoca: Service type not found: "image/x-olympus-orf" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-excel" kf5.kservice.sycoca: Service type not found: "application/pgp-keys" kf5.kservice.sycoca: Service type not found: "image/x-jng" kf5.kservice.sycoca: Service type not found: "application/x-lz4-compressed-tar" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-master" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.impress.template" kf5.kservice.sycoca: Service type not found: "application/x-font-pcf" kf5.kservice.sycoca: Service type not found: "application/xhtml+xml" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text" kf5.kservice.sycoca: Service type not found: "application/x-java" kf5.kservice.sycoca: Service type not found: "image/x-sgi" kf5.kservice.sycoca: Service type not found: "audio/basic" kf5.kservice.sycoca: Service type not found: "application/x-executable" kf5.kservice.sycoca: Service type not found: "text/spreadsheet" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.spreadsheet-template" kf5.kservice.sycoca: Service type not found: "audio/x-ms-wma" kf5.kservice.sycoca: Service type not found: "image/x-fuji-raf" kf5.kservice.sycoca: Service type not found: "application/x-compress" kf5.kservice.sycoca: Service type not found: "audio/vnd.dts" kf5.kservice.sycoca: Service type not found: "image/fits" kf5.kservice.sycoca: Service type not found: "application/x-xz" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.formula-template" kf5.kservice.sycoca: Service type not found: "image/gif" kf5.kservice.sycoca: Service type not found: "audio/x-ms-asx" kf5.kservice.sycoca: Service type not found: "video/x-mng" kf5.kservice.sycoca: Service type not found: "image/x-gimp-gbr" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.chart-template" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.wordprocessingml.document" kf5.kservice.sycoca: Service type not found: "application/x-bzpdf" kf5.kservice.sycoca: Service type not found: "image/png" kf5.kservice.sycoca: Service type not found: "application/x-gzdvi" kf5.kservice.sycoca: Service type not found: "application/mxf" kf5.kservice.sycoca: Service type not found: "application/x-wpg" kf5.kservice.sycoca: Service type not found: "image/x-xwindowdump" kf5.kservice.sycoca: Service type not found: "image/x-dcraw" kf5.kservice.sycoca: Service type not found: "audio/x-mpegurl" kf5.kservice.sycoca: Service type not found: "x-content/audio-player" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-web" kf5.kservice.sycoca: Service type not found: "x-content/blank-dvd" kf5.kservice.sycoca: Service type not found: "image/cgm" kf5.kservice.sycoca: Service type not found: "application/x-fictionbook+xml" kf5.kservice.sycoca: Service type not found: "application/vnd.palm" kf5.kservice.sycoca: Service type not found: "video/webm" kf5.kservice.sycoca: Service type not found: "image/wmf" kf5.kservice.sycoca: Service type not found: "text/tab-separated-values" kf5.kservice.sycoca: Service type not found: "application/x-pagemaker" kf5.kservice.sycoca: Service type not found: "application/vnd.comicbook-rar" kf5.kservice.sycoca: Service type not found: "image/openraster" kf5.kservice.sycoca: Service type not found: "application/illustrator" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-publisher" kf5.kservice.sycoca: Service type not found: "application/msword" kf5.kservice.sycoca: Service type not found: "application/x-krita" kf5.kservice.sycoca: Service type not found: "application/x-dvi" kf5.kservice.sycoca: Service type not found: "image/x-portable-bitmap" kf5.kservice.sycoca: Service type not found: "audio/AMR" kf5.kservice.sycoca: Service type not found: "application/x-cpio" kf5.kservice.sycoca: Service type not found: "image/webp" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.writer" kf5.kservice.sycoca: Service type not found: "text/css" kf5.kservice.sycoca: Service type not found: "image/x-adobe-dng" kf5.kservice.sycoca: Service type not found: "image/x-eps" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.draw.template" kf5.kservice.sycoca: Service type not found: "image/x-compressed-xcf" kf5.kservice.sycoca: Service type not found: "application/x-bzip-compressed-tar" kf5.kservice.sycoca: Service type not found: "application/x-quattropro" kf5.kservice.sycoca: Service type not found: "application/x-ms-dos-executable" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-access" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-powerpoint" kf5.kservice.sycoca: Service type not found: "application/x-sv4cpio" kf5.kservice.sycoca: Service type not found: "audio/mp4" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.chart" kf5.kservice.sycoca: Service type not found: "application/x-lrzip-compressed-tar" kf5.kservice.sycoca: Service type not found: "application/vnd.comicbook+zip" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.writer.global" kf5.kservice.sycoca: Service type not found: "application/vnd.apple.mpegurl" kf5.kservice.sycoca: Service type not found: "application/x-xojpp" kf5.kservice.sycoca: Service type not found: "application/x-bzdvi" kf5.kservice.sycoca: Service type not found: "image/x-gimp-pat" kf5.kservice.sycoca: Service type not found: "image/x-gimp-gih" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.math" kf5.kservice.sycoca: Service type not found: "image/vnd.zbrush.pcx" kf5.kservice.sycoca: Service type not found: "video/x-flv" kf5.kservice.sycoca: Service type not found: "x-content/audio-cdda" kf5.kservice.sycoca: Service type not found: "image/jpeg" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.calc.template" kf5.kservice.sycoca: Service type not found: "image/x-sony-arw" kf5.kservice.sycoca: Service type not found: "image/emf" kf5.kservice.sycoca: Service type not found: "image/x-sony-srf" kf5.kservice.sycoca: Service type not found: "image/x-panasonic-rw2" kf5.kservice.sycoca: Service type not found: "application/prs.plucker" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.graphics-flat-xml" kf5.kservice.sycoca: Service type not found: "video/dv" kf5.kservice.sycoca: Service type not found: "application/x-trash" kf5.kservice.sycoca: Service type not found: "application/pgp-encrypted" kf5.kservice.sycoca: Service type not found: "image/x-dds" kf5.kservice.sycoca: Service type not found: "image/x-xcursor" kf5.kservice.sycoca: Service type not found: "audio/midi" kf5.kservice.sycoca: Service type not found: "image/x-kodak-dcr" kf5.kservice.sycoca: Service type not found: "application/vnd.rn-realmedia" kf5.kservice.sycoca: Service type not found: "application/smil+xml" kf5.kservice.sycoca: Service type not found: "application/x-font-bdf" kf5.kservice.sycoca: Service type not found: "application/octet-stream" kf5.kservice.sycoca: Service type not found: "application/x-k3b" kf5.kservice.sycoca: Service type not found: "audio/x-it" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" kf5.kservice.sycoca: Service type not found: "application/x-bzpostscript" kf5.kservice.sycoca: Service type not found: "application/vnd.amazon.mobi8-ebook" kf5.kservice.sycoca: Service type not found: "application/vnd.rar" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.impress" kf5.kservice.sycoca: Service type not found: "audio/x-musepack" kf5.kservice.sycoca: Service type not found: "image/x-sun-raster" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.graphics-template" kf5.kservice.sycoca: Service type not found: "application/pgp-signature" kf5.kservice.sycoca: Service type not found: "application/zip" kf5.kservice.sycoca: Service type not found: "application/x-cd-image" kf5.kservice.sycoca: Service type not found: "application/x-rpm" kf5.kservice.sycoca: Service type not found: "application/mathml+xml" kf5.kservice.sycoca: Service type not found: "image/x-xcf" kf5.kservice.sycoca: Service type not found: "video/x-nsv" kf5.kservice.sycoca: Service type not found: "audio/x-scpls" kf5.kservice.sycoca: Service type not found: "audio/x-speex" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.presentation-flat-xml" kf5.kservice.sycoca: Service type not found: "application/x-shorten" kf5.kservice.sycoca: Service type not found: "audio/x-wav" kf5.kservice.sycoca: Service type not found: "image/x-canon-cr2" kf5.kservice.sycoca: Service type not found: "application/epub+zip" kf5.kservice.sycoca: Service type not found: "image/x-photo-cd" kf5.kservice.sycoca: Service type not found: "audio/x-adpcm" kf5.kservice.sycoca: Service type not found: "font/ttf" kf5.kservice.sycoca: Service type not found: "application/vnd.stardivision.writer" kf5.kservice.sycoca: Service type not found: "image/jp2" kf5.kservice.sycoca: Service type not found: "x-content/video-svcd" kf5.kservice.sycoca: Service type not found: "application/javascript" kf5.kservice.sycoca: Service type not found: "image/bmp" kf5.kservice.sycoca: Service type not found: "image/x-portable-anymap" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-master-template" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-htmlhelp" kf5.kservice.sycoca: Service type not found: "audio/x-gsm" kf5.kservice.sycoca: Service type not found: "video/mp4" kf5.kservice.sycoca: Service type not found: "application/sdp" kf5.kservice.sycoca: Service type not found: "image/x-xbitmap" kf5.kservice.sycoca: Service type not found: "application/xml" kf5.kservice.sycoca: Service type not found: "image/x-bzeps" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-template" kf5.kservice.sycoca: Service type not found: "video/x-msvideo" kf5.kservice.sycoca: Service type not found: "application/x-xpinstall" kf5.kservice.sycoca: Service type not found: "image/svg+xml-compressed" kf5.kservice.sycoca: Service type not found: "application/x-iwork-keynote-sffkey" kf5.kservice.sycoca: Service type not found: "application/vnd.debian.binary-package" kf5.kservice.sycoca: Service type not found: "application/x-matroska" kf5.kservice.sycoca: Service type not found: "audio/x-s3m" kf5.kservice.sycoca: Service type not found: "application/x-ksysguard" kf5.kservice.sycoca: Service type not found: "application/x-keepass2" kf5.kservice.sycoca: Service type not found: "audio/mp2" kf5.kservice.sycoca: Service type not found: "image/x-kodak-k25" kf5.kservice.sycoca: Service type not found: "x-content/blank-hddvd" kf5.kservice.sycoca: Service type not found: "text/x-google-video-pointer" kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.writer.template" kf5.kservice.sycoca: Service type not found: "x-content/blank-bd" kf5.kservice.sycoca: Service type not found: "text/html" kf5.kservice.sycoca: Service type not found: "application/vnd.ms-works" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.slide" kf5.kservice.sycoca: Service type not found: "audio/x-flac+ogg" kf5.kservice.sycoca: Service type not found: "application/x-gzpostscript" kf5.kservice.sycoca: Service type not found: "text/vcard" kf5.kservice.sycoca: Service type not found: "image/x-sony-sr2" kf5.kservice.sycoca: Service type not found: "inode/directory" kf5.kservice.sycoca: Service type not found: "application/x-xopp" kf5.kservice.sycoca: Service type not found: "application/x-kdenlive" kf5.kservice.sycoca: Service type not found: "application/vnd.corel-draw" kf5.kservice.sycoca: Service type not found: "application/vnd.wordperfect" kf5.kservice.sycoca: Service type not found: "image/x-minolta-mrw" kf5.kservice.sycoca: Service type not found: "application/vnd.sqlite3" kf5.kservice.sycoca: Service type not found: "image/x-portable-pixmap" kf5.kservice.sycoca: Service type not found: "text/vnd.qt.linguist" kf5.kservice.sycoca: Service type not found: "image/x-canon-crw" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.slideshow" kf5.kservice.sycoca: Service type not found: "x-content/video-dvd" kf5.kservice.sycoca: Service type not found: "application/vnd.kde.fontspackage" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.wordprocessingml.template" kf5.kservice.sycoca: Service type not found: "application/oxps" kf5.kservice.sycoca: Service type not found: "application/x-khtml-adaptor" kf5.kservice.sycoca: Service type not found: "video/mp2t" kf5.kservice.sycoca: Service type not found: "application/vnd.adobe.flash.movie" kf5.kservice.sycoca: Service type not found: "audio/x-mod" kf5.kservice.sycoca: Service type not found: "image/vnd.rn-realpix" kf5.kservice.sycoca: Service type not found: "application/postscript" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.spreadsheetml.template" kf5.kservice.sycoca: Service type not found: "image/vnd.adobe.photoshop" kf5.kservice.sycoca: Service type not found: "application/x-lzma" kf5.kservice.sycoca: Service type not found: "audio/AMR-WB" kf5.kservice.sycoca: Service type not found: "audio/x-aiff" kf5.kservice.sycoca: Service type not found: "image/x-portable-graymap" kf5.kservice.sycoca: Service type not found: "text/markdown" kf5.kservice.sycoca: Service type not found: "application/x-bcpio" kf5.kservice.sycoca: Service type not found: "application/x-lzip-compressed-tar" kf5.kservice.sycoca: Service type not found: "video/x-matroska" kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.presentation" kf5.kservice.sycoca: Service type not found: "audio/x-stm" kf5.kservice.sycoca: Service type not found: "audio/prs.sid" kf5.kservice.sycoca: Service type not found: "audio/x-ape" kf5.kservice.sycoca: Service type not found: "application/x-designer" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.graphics" kf5.kservice.sycoca: Service type not found: "image/vnd.microsoft.icon" kf5.kservice.sycoca: Service type not found: "text/x-ldif" kf5.kservice.sycoca: Service type not found: "application/x-kexiproject-shortcut" kf5.kservice.sycoca: Service type not found: "application/x-font-type1" kf5.kservice.sycoca: Service type not found: "image/x-exr" kf5.kservice.sycoca: Service type not found: "image/x-kodak-kdc" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.formula" kf5.kservice.sycoca: Service type not found: "application/x-cb7" kf5.kservice.sycoca: Service type not found: "image/x-gzeps" kf5.kservice.sycoca: Service type not found: "application/x-xopt" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-flat-xml" kf5.kservice.sycoca: Service type not found: "image/x-hdr" kf5.kservice.sycoca: Service type not found: "multipart/x-mixed-replace" kf5.kservice.sycoca: Service type not found: "application/x-iso9660-appimage" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.spreadsheet" kf5.kservice.sycoca: Service type not found: "application/x-java-applet" kf5.kservice.sycoca: Service type not found: "application/x-sony-bbeb" kf5.kservice.sycoca: Service type not found: "application/x-kwallet" kf5.kservice.sycoca: Service type not found: "application/x-tzo" kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.database" kf5.kservice.sycoca: Service type not found: "video/vnd.mpegurl" kf5.kservice.sycoca: Service type not found: "application/x-dbf" kf5.kservice.sycoca: Service type not found: "application/x-hwp" kf5.kservice.sycoca: Service type not found: "application/x-navi-animation" kf5.kservice.sycoca: Service type not found: "application/x-font-afm" kf5.kservice.sycoca: Service type not found: "audio/x-opus+ogg" kf5.kservice.sycoca: Service type not found: "application/ram" kf5.kservice.sycoca: Service type not found: "multipart/mixed" kf5.kservice.sycoca: Service type not found: "image/fax-g3" ... Jan 31 17:24:18 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found Jan 31 17:24:18 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found Jan 31 17:24:18 laptop systemsettings5[20318]: Entry "application/vnd.ms-publisher" is dirty. Saving. Jan 31 17:21:57 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found Jan 31 17:21:57 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found Jan 31 17:21:57 laptop systemsettings5[20318]: "application/vnd.ms-publisher" hasDefinitionFile: false上面的一些值得注意的消息包括：
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-publisher" kf5.kservice.sycoca: Service type not found: "application/illustrator"我已經證明了 mime 類型
application/vnd.ms-publisher是存在和定義的。所以我隨機檢查了幾個。這是application/illustrator（刪除評論以節省空間）。less /usr/share/mime/application/illustrator.xml <?xml version="1.0" encoding="utf-8"?> <mime-type xmlns="http://www.freedesktop.org/standards/shared-mime-info" type="application/illustrator"> <!--Created automatically by update-mime-database. DO NOT EDIT!--> <generic-icon name="image-x-generic"/> <glob pattern="*.ai"/> <alias type="application/vnd.adobe.illustrator"/> </mime-type>所有的 mime 類型定義似乎都根據
ls /usr/share/mime/application/（沒有足夠的空間在此處發布整個目錄列表。）我不明白為什麼對於我係統上存在的 mime 類型，日誌消息會顯示“未找到服務類型”。但更重要的是，為什麼我不能添加一個應用程序來處理如上所示的 mime 類型？
回應 Nathaniel M. Beaver 的評論
$ ktraderclient5 --mimetype application/vnd.ms-publisher mimetype is : application/vnd.ms-publisher got 1 offers. ---- Offer 0 ---- Invalid property Actions StartupNotify : 'TRUE' StartupWMClass : 'libreoffice-draw' Invalid property UntranslatedGenericName Invalid property X-GIO-NoFuse X-KDE-Protocols : 'file - http - ftp - webdav - webdavs' Type : 'Application' Name : 'LibreOffice Draw' Comment : 'Create and edit drawings, flow charts, and logos by using Draw.' GenericName : 'Drawing Program' Icon : 'libreoffice-draw' Exec : 'libreoffice --draw %U' Terminal : 'FALSE' Invalid property TerminalOptions Invalid property Path ServiceTypes : 'application/vnd.oasis.opendocument.graphics - application/vnd.oasis.opendocument.graphics-flat-xml - application/vnd.oasis.opendocument.graphics-template - application/vnd.sun.xml.draw - application/vnd.sun.xml.draw.template - application/vnd.visio - application/x-wpg - application/vnd.corel-draw - application/vnd.ms-publisher - image/x-freehand - application/clarisworks - application/x-pagemaker - application/pdf - application/x-stardraw - image/x-emf - image/x-wmf - Application' AllowAsDefault : 'TRUE' InitialPreference : '5' Invalid property Library DesktopEntryPath : '/usr/share/applications/libreoffice-draw.desktop' DesktopEntryName : 'libreoffice-draw' Keywords : 'Vector - Schema - Diagram - Layout - OpenDocument Graphics - Microsoft Publisher - Microsoft Visio - Corel Draw - cdr - odg - svg - pdf - vsd' FormFactors : '' Categories : 'Office - FlowChart - Graphics - 2DGraphics - VectorGraphics - X-Red-Hat-Base - X-MandrivaLinux-Office-Drawing'刪除此問題的推薦方法是什麼？
在完全不同的系統上也一樣。以普通使用者的身份執行此操作：
update-mime-database $HOME/.local/share/mime如果您需要完全重置，請執行以下操作：
cd $HOME/.local/share/ mv mime mime2 mkdir -p mime/packages update-mime-database $HOME/.local/share/mime這將重置所有已損壞的 mime 設置，但它會繼續工作。目前 KDE 在進行更改後不會呼叫更新數據庫，從而導致此問題。
這是調試 mimetype 關聯問題的分步方法。
- 確定文件的 mimetype。
$ xdg-mime query filetype ~/.ssh/id_rsa.pub application/vnd.ms-publisher
- 確定 mimetype 的預設處理程序。
$ xdg-mime query default application/vnd.ms-publisher libreoffice-writer.desktop添加
XDG_UTILS_DEBUG_LEVEL=2環境變數以獲取更多資訊。$ XDG_UTILS_DEBUG_LEVEL=2 xdg-mime query default application/vnd.ms-publisher Running KDE trader query "application/vnd.ms-publisher" mimetype and "Application" servicetype libreoffice-writer.desktop
- 用於
xdg-mime更改預設關聯。$ XDG_UTILS_DEBUG_LEVEL=2 xdg-mime default org.kde.kate.desktop application/vnd.ms-publisher make_default_kde: No kde runtime detected make_default_generic org.kde.kate.desktop application/vnd.ms-publisher Updating /home/nathaniel/.config/mimeapps.list這也可以通過圖形程序（例如 Dolphin）來完成。正如我們將看到的，結果並不總是相同的。 4. 檢查是否更改了預設處理程序。
如果
xdg-mime成功，它將如下所示：$ xdg-mime query default application/vnd.ms-publisher org.kde.kate.desktop如果它不起作用，你會再次看到這個。
$ xdg-mime query default application/vnd.ms-publisher libreoffice-writer.desktop
- 如果
xdg-mime沒有工作，它的調試時間。首先檢查這個文件：
~/.config/mimeapps.list它有以下部分：
[Added Associations]、[Default Applications]和[Removed Associations]。讓我們快速
grep看看發生了什麼。$ grep 'application/vnd.ms-publisher' ~/.config/mimeapps.list application/vnd.ms-publisher=libreoffice-writer.desktop;libreoffice-draw.desktop; application/vnd.ms-publisher=org.kde.kate.desktop;嗯，看起來不太對勁。如果我們進一步檢查該文件，我們會看到
xdg-mime添加了 kate 在[Default Applications]但不是[Added Associations]. 如果我們使用 Dolphin / 更改了 mimetypekeditfiletype5 application/vnd.ms-publisher，我們會觀察到它org.kde.kate.desktop;之前會libreoffice-writer.desktop;在[Added Associations].不過，按照FreeDesktop 規範，這無關緊要；即使
[Default Applications]未在[Added Associations].這
$$ Default Applications $$group 指示用於給定 mimetype 的預設應用程序。例如，這是在文件管理器中點兩下文件時將啟動的。如果不再安裝該應用程序，則嘗試列表中的下一個應用程序，依此類推。
所以這可能是 KDE 中的一個錯誤，它似乎已在上游修復：
將 mimeapps.list 中的“預設應用程序”設為首選應用程序
https://phabricator.kde.org/D26690
這可能也是 中的一個錯誤，
xdg-mime它是一個巨大的 shell 腳本，由於它需要完成一項頂級工作，因此沒有得到足夠的關注。無論如何，讓我們修復那條線，讓它改為：
application/vnd.ms-publisher=org.kde.kate.desktop;libreoffice-writer.desktop;libreoffice-draw.desktop;讓我們看看這是否有幫助。
$ xdg-mime query default application/vnd.ms-publisher libreoffice-writer.desktop嗯，怎麼沒效果？
這是因為
xdg-mime它不會自行檢查，它會呼叫桌面使用的任何工具。在 KDE 上，這是kmimetypefinder5,ktraderclient5和kbuildsycoca5. 最後一個很重要，因為它是 KDE 建構其 mimetype 關聯記憶體的方式。請注意，這不是位於 的記憶體
~/.local/share/applications/mimeinfo.cache，儘管這也是一個 mimetype 記憶體，因為該位置在最新規範中被列為“為了兼容性，已棄用”。正確的方法是重建 KDE 的 mimetype：
$ kbuildsycoca5但我們也可以直接刪除它：
$ rm ~/.cache/ksycoca5_*然後再試一次：
$ xdg-mime query default application/vnd.ms-publisher org.kde.kate.desktop這看起來很有希望。現在讓我們嘗試打開一個實際的文件：
$ xdg-open ~/.ssh/id_rsa.pub在 KDE 上，這與以下基本相同：
$ kde-open5 ~/.ssh/id_rsa.pub這應該在 Kate 文本編輯器中打開。成功！ 6. 如果還是不行怎麼辦？
在 KDE Plasma 5 上，
xdg-mime query default只需呼叫ktraderclient5 --mimetype. 因此ktraderclient5 --mimetype application/vnd.ms-publisher將提供有用的資訊，儘管輸出可能是大量的。添加
XDG_UTILS_DEBUG_LEVEL=2到xdg-*命令可能會提供更好的調試輸出。啟用登錄 KDE 以獲取
qDebug輸出也可能有所幫助。$ if ! test -f ~/.config/QtProject/qtlogging.ini; then printf '[Rules]\n*.debug=true\nqt.*.debug=false\n' > ~/.config/QtProject/qtlogging.ini; else printf 'Error: ~/.config/QtProject/qtlogging.ini already exists.\n'; fi;另外，檢查您的應用程序正在使用什麼文件。
xdg-open使用kde-open5，但您的應用程序的行為可能會有所不同。例如，它可能正在查看一個舊的、棄用的 mimetype 關聯文件位置：
~/.local/share/applications/mimeapps.list或者可能是更舊的位置：
~/.local/share/applications/defaults.list您可能必須深入探勘原始碼或使用strace以確定應用程序實際使用的文件。如果您使用自定義 mimetypes 或自定義桌面文件，情況會變得更加複雜。