我在使用文档中的许多文本标记时似乎遇到了问题（\textbf{} \emph{} \textit{}不会对文本添加任何效果，但 \sout 有效）。
有一些相关的编译警告信息，例如：
LaTeX Font Warning: Font shape `EU1/cmr/m/n' undefined
(Font) using `EU1/lmr/m/n' instead on input line 926.
LaTeX Font Warning: Font shape `EU1/ppl/m/it' undefined
(Font) using `EU1/ppl/m/n' instead on input line 1.
LaTeX Font Warning: Font shape `EU1/ppl/m/sl' undefined
(Font) using `EU1/ppl/m/n' instead on input line 122.
LaTeX Font Warning: Font shape `EU1/ppl/bx/n' undefined
(Font) using `EU1/ppl/m/n' instead on input line 136.
-
Package scrextend Warning: This package was made to extend other classes but
(scrextend) KOMA-Script classes by some features of the
(scrextend) KOMA-Script classes.
(scrextend) It should never be used with a KOMA-Script class.
(scrextend) Loading of the package will be aborted.
令人惊讶的是，尽管我没有直接（或者据我所知根本没有）调用该命令，但我也收到多个 \bf 使用警告：
Class scrbook Warning: Usage of deprecated font command `\bf'!
(scrbook) You should note, that in 1994 font command `\bf' has
(scrbook) been defined for compatiblitiy to Script 2.0 only.
(scrbook) Now, after two decades of LaTeX2e and NFSS2, you
(scrbook) shouldn't use such commands any longer and within
(scrbook) KOMA-Script usage of `\bf' is definitely deprecated.
(scrbook) See `fntguide.pdf' for more information about
(scrbook) recommended font commands.
(scrbook) Note also, that KOMA-Script will remove the definition
(scrbook) of `\bf' anytime until release of about version 3.20.
(scrbook) But for now, KOMA-Script will replace deprecated `\bf'
(scrbook) by `\normalfont \bfseries ' on input line 10.
类似报道（1，2）指定 [T1]丰滕克包，但这没有帮助。现代按照建议打包（1) 也未能解决问题。
有什么建议么？
TeX 分布：
This is XeTeX, Version 3.14159265-2.6-0.99992 (TeX Live 2015/dev/Debian) (preloaded format=xelatex 2017.6.26)
文件列表：
scrbook.cls 2013/12/19 v3.12 KOMA-Script document class (book)
scrkbase.sty 2013/12/19 v3.12 KOMA-Script package (KOMA-Script-dependent bas
ics and keyval usage)
scrbase.sty 2013/12/19 v3.12 KOMA-Script package (KOMA-Script-independent b
asics and keyval usage)
keyval.sty 2014/05/08 v1.15 key=value parser (DPC)
scrlfile.sty 2013/12/19 v3.12 KOMA-Script package (loading files)
tocbasic.sty 2013/12/19 v3.12 KOMA-Script package (handling toc-files)
scrsize11pt.clo 2013/12/19 v3.12 KOMA-Script font size class option (11pt)
typearea.sty 2013/12/19 v3.12 KOMA-Script package (type area)
nextpage.sty 2009/09/03 v1.1a additional page commands
fontspec.sty 2014/06/21 v2.4a Font selection for XeLaTeX and LuaLaTeX
expl3.sty 2014/09/15 v5423 L3 programming layer (loader)
expl3-code.tex 2014/09/15 v5423 L3 programming layer
etex.sty 1998/03/26 v2.0 eTeX basic definition package (PEB)
l3unicode-data.def 2014/08/12 v5276 L3 Unicode data
l3xdvipdfmx.def
xparse.sty 2014/09/15 v5423 L3 Experimental document command parser
fontspec-patches.sty 2014/06/21 v2.4a Font selection for XeLaTeX and LuaLaTe
X
fontspec-xetex.sty 2014/06/21 v2.4a Font selection for XeLaTeX and LuaLaTeX
fontenc.sty
eu1enc.def 2010/05/27 v0.1h Experimental Unicode font encodings
eu1lmr.fd 2009/10/30 v1.6 Font defs for Latin Modern
xunicode.sty 2011/09/09 v0.981 provides access to latin accents and many oth
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eu1lmss.fd 2009/10/30 v1.6 Font defs for Latin Modern
graphicx.sty 2014/04/25 v1.0g Enhanced LaTeX Graphics (DPC,SPQR)
graphics.sty 2009/02/05 v1.0o Standard LaTeX Graphics (DPC,SPQR)
trig.sty 1999/03/16 v1.09 sin cos tan (DPC)
graphics.cfg 2010/04/23 v1.9 graphics configuration of TeX Live
xetex.def 2014/07/25 v4.03 LaTeX color/graphics driver for XeTeX (RRM/JK)
fontspec.cfg
microtype.sty 2013/05/23 v2.5a Micro-typographical refinements (RS)
microtype-xetex.def 2013/05/23 v2.5a Definitions specific to xetex (RS)
microtype.cfg 2013/05/23 v2.5a microtype main configuration file (RS)
calc.sty 2014/10/28 v4.3 Infix arithmetic (KKT,FJ)
color.sty 1999/02/16
color.cfg 2007/01/18 v1.5 color configuration of teTeX/TeXLive
pstricks.sty 2013/12/12 v0.60 LaTeX wrapper for `PSTricks' (RN,HV)
ifpdf.sty 2011/01/30 v2.3 Provides the ifpdf switch (HO)
pstricks.tex 2014/08/27 v2.57 `PSTricks' (tvz,hv)
pst-xkey.tex 2005/11/25 v1.6 PSTricks specialization of xkeyval (HA)
xkeyval.sty 2014/05/25 v2.7 package option processing (HA)
xkeyval.tex 2014/05/25 v2.7 key=value parser (HA)
pst-fp.tex 2014/08/27 v2.57 `PST-fp' (hv)
xcolor.sty 2007/01/21 v2.11 LaTeX color extensions (UK)
color.cfg 2007/01/18 v1.5 color configuration of teTeX/TeXLive
pst-tree.sty 2009/01/25 package wrapper for pst-tree.tex
pst-tree.tex 2011/02/28 1.12 `pst-tree' (tvz,hv)
pst-node.sty 2010/04/22 package wrapper for pst-node.tex
pst-node.tex 2011/02/28 1.12 `pst-node' (tvz,hv)
amsmath.sty 2013/01/14 v2.14 AMS math features
amstext.sty 2000/06/29 v2.01
amsgen.sty 1999/11/30 v2.0
amsbsy.sty 1999/11/29 v1.2d
amsopn.sty 1999/12/14 v2.01 operator names
amssymb.sty 2013/01/14 v3.01 AMS font symbols
amsfonts.sty 2013/01/14 v3.01 Basic AMSFonts support
textgreek.sty 2011/10/09 v0.7 Greek symbols in text
lgrenc.def 2013/12/02 v0.11.2 LGR Greek font encoding definitions
greek-fontenc.def 2013/11/28 v0.11 Common Greek font encoding definitions
enumitem.sty 2011/09/28 v3.5.2 Customized lists
tabularx.sty 2014/10/28 v2.10 `tabularx' package (DPC)
array.sty 2014/10/28 v2.4c Tabular extension package (FMi)
longtable.sty 2014/10/28 v4.11 Multi-page Table package (DPC)
tabu.sty 2011/02/26 v2.8 - flexible LaTeX tabulars (FC)
varwidth.sty 2009/03/30 ver 0.92; Variable-width minipages
pdflscape.sty 2008/08/11 v0.10 Display of landscape pages in PDF (HO)
lscape.sty 2000/10/22 v3.01 Landscape Pages (DPC)
ifxetex.sty 2010/09/12 v0.6 Provides ifxetex conditional
atbegshi.sty 2011/10/05 v1.16 At begin shipout hook (HO)
infwarerr.sty 2010/04/08 v1.3 Providing info/warning/error messages (HO)
ltxcmds.sty 2011/11/09 v1.22 LaTeX kernel commands for general use (HO)
adjustbox.sty 2012/05/21 v1.0 Adjusting TeX boxes (trim, clip, ...)
adjcalc.sty 2012/05/16 v1.1 Provides advanced setlength with multiple back-
ends (calc, etex, pgfmath)
trimclip.sty 2012/05/16 v1.0 Trim and clip general TeX material
collectbox.sty 2012/05/17 v0.4b Collect macro arguments as boxes
tc-xetex.def 2012/05/13 v1.0 Clipping driver for xetex
ifoddpage.sty 2011/09/13 v1.0 Conditionals for odd/even page detection
changepage.sty 2009/10/20 v1.0c check page and change page layout
babel.sty 2014/09/25 3.9l The Babel package
english.ldf 2012/08/20 v3.3p English support from the babel system
ngerman.ldf 2013/12/13 v2.7 German support for babel (new orthography)
rotating.sty 2009/03/28 v2.16a rotated objects in LaTeX
ifthen.sty 2014/09/29 v1.1c Standard LaTeX ifthen package (DPC)
wallpaper.sty 2005/01/18, v1.01 easy wallpaper formatting (MHFW)
eso-pic.sty 2013/10/06 v2.0d eso-pic (RN)
ulem.sty 2012/05/18
multicol.sty 2014/10/28 v1.8i multicolumn formatting (FMi)
chemfig.sty 2013/11/28 v1.0h Draw molecule with an easy syntax
tikz.sty 2013/12/13 v3.0.0 (rcs-revision 1.142)
pgf.sty 2013/12/18 v3.0.0 (rcs-revision 1.14)
pgfrcs.sty 2013/12/20 v3.0.0 (rcs-revision 1.28)
everyshi.sty 2001/05/15 v3.00 EveryShipout Package (MS)
pgfrcs.code.tex
pgfcore.sty 2010/04/11 v3.0.0 (rcs-revision 1.7)
pgfsys.sty 2013/11/30 v3.0.0 (rcs-revision 1.47)
pgfsys.code.tex
pgfsyssoftpath.code.tex 2013/09/09 (rcs-revision 1.9)
pgfsysprotocol.code.tex 2006/10/16 (rcs-revision 1.4)
pgfcore.code.tex
pgfcomp-version-0-65.sty 2007/07/03 v3.0.0 (rcs-revision 1.7)
pgfcomp-version-1-18.sty 2007/07/23 v3.0.0 (rcs-revision 1.1)
pgffor.sty 2013/12/13 v3.0.0 (rcs-revision 1.25)
pgfkeys.sty
pgfkeys.code.tex
pgfmath.sty
pgfmath.code.tex
pgffor.code.tex
tikz.code.tex
nameref.sty 2012/10/27 v2.43 Cross-referencing by name of section
refcount.sty 2011/10/16 v3.4 Data extraction from label references (HO)
gettitlestring.sty 2010/12/03 v1.4 Cleanup title references (HO)
kvoptions.sty 2011/06/30 v3.11 Key value format for package options (HO)
kvsetkeys.sty 2012/04/25 v1.16 Key value parser (HO)
etexcmds.sty 2011/02/16 v1.5 Avoid name clashes with e-TeX commands (HO)
ifluatex.sty 2010/03/01 v1.3 Provides the ifluatex switch (HO)
booktabs.sty 2005/04/14 v1.61803 publication quality tables
multirow.sty
algorithm.sty 2009/08/24 v0.1 Document Style `algorithm' - floating environm
ent
float.sty 2001/11/08 v1.3d Float enhancements (AL)
algpseudocode.sty
algorithmicx.sty 2005/04/27 v1.2 Algorithmicx
./style/thesis_style.sty
./style/shortcut_defs.sty
xspace.sty 2014/10/28 v1.13 Space after command names (DPC,MH)
fancybox.sty 2010/05/15 1.4
fancyhdr.sty
hyperref.sty 2012/11/06 v6.83m Hypertext links for LaTeX
hobsub-hyperref.sty 2012/05/28 v1.13 Bundle oberdiek, subset hyperref (HO)
hobsub-generic.sty 2012/05/28 v1.13 Bundle oberdiek, subset generic (HO)
hobsub.sty 2012/05/28 v1.13 Construct package bundles (HO)
ifvtex.sty 2010/03/01 v1.5 Detect VTeX and its facilities (HO)
intcalc.sty 2007/09/27 v1.1 Expandable calculations with integers (HO)
kvdefinekeys.sty 2011/04/07 v1.3 Define keys (HO)
pdftexcmds.sty 2011/11/29 v0.20 Utility functions of pdfTeX for LuaTeX (HO)
pdfescape.sty 2011/11/25 v1.13 Implements pdfTeX's escape features (HO)
bigintcalc.sty 2012/04/08 v1.3 Expandable calculations on big integers (HO)
bitset.sty 2011/01/30 v1.1 Handle bit-vector datatype (HO)
uniquecounter.sty 2011/01/30 v1.2 Provide unlimited unique counter (HO)
letltxmacro.sty 2010/09/02 v1.4 Let assignment for LaTeX macros (HO)
hopatch.sty 2012/05/28 v1.2 Wrapper for package hooks (HO)
xcolor-patch.sty 2011/01/30 xcolor patch
atveryend.sty 2011/06/30 v1.8 Hooks at the very end of document (HO)
hycolor.sty 2011/01/30 v1.7 Color options for hyperref/bookmark (HO)
auxhook.sty 2011/03/04 v1.3 Hooks for auxiliary files (HO)
pd1enc.def 2012/11/06 v6.83m Hyperref: PDFDocEncoding definition (HO)
hyperref.cfg 2002/06/06 v1.2 hyperref configuration of TeXLive
url.sty 2013/09/16 ver 3.4 Verb mode for urls, etc.
hxetex.def 2012/11/06 v6.83m Hyperref driver for XeTeX
puenc.def 2012/11/06 v6.83m Hyperref: PDF Unicode definition (HO)
stringenc.sty 2011/12/02 v1.10 Convert strings between diff. encodings (HO)
rerunfilecheck.sty 2011/04/15 v1.7 Rerun checks for auxiliary files (HO)
footmisc.sty 2011/06/06 v5.5b a miscellany of footnote facilities
scrextend.sty
csquotes.sty 2011/10/22 v5.1d context-sensitive quotations
etoolbox.sty 2011/01/03 v2.1 e-TeX tools for LaTeX
csquotes.def 2011/10/22 v5.1d csquotes generic definitions
csquotes.cfg
mathpazo.sty 2005/04/12 PSNFSS-v9.2a Palatino w/ Pazo Math (D.Puga, WaS)
glossaries.sty 2014/09/01 v4.11 (NLCT)
mfirstuc.sty 2014/07/30 v1.09 (NLCT)
textcase.sty 2004/10/07 v0.07 Text only upper/lower case changing (DPC)
xfor.sty 2009/02/05 v1.05 (NLCT)
datatool-base.sty 2014/06/10 v2.22 (NLCT)
substr.sty 2009/10/20 v1.2 Handle substrings
datatool-fp.sty 2013/08/29 v2.17 (NLCT)
fp.sty 1995/04/02
defpattern.sty 1994/10/12
fp-basic.sty 1996/05/13
fp-addons.sty 1995/03/15
fp-snap.sty 1995/04/05
fp-exp.sty 1995/04/03
fp-trigo.sty 1995/04/14
fp-pas.sty 1994/08/29
fp-random.sty 1995/02/23
fp-eqn.sty 1995/04/03
fp-upn.sty 1996/10/21
fp-eval.sty 1995/04/03
glossaries-compatible-307.sty 2013/11/14 v4.0 (NLCT)
translator.sty 2010/06/12 ver 1.10
translator-language-mappings.tex
glossary-hypernav.sty 2013/11/14 v4.0 (NLCT)
glossary-list.sty 2013/11/14 v4.0 (NLCT)
glossary-long.sty 2013/11/14 v4.0 (NLCT)
glossary-super.sty 2013/11/14 v4.0 (NLCT)
supertabular.sty 2004/02/20 v4.1e the supertabular environment
glossary-tree.sty 2014/08/27 v4.10 (NLCT)
glossary-longragged.sty 2014/07/30 v4.08 (NLCT)
./style/thesis_glossary.sty
quotchap.sty 2012/10/20 v1.1 Decorative Chapter Headings with Quotes
thumbs.sty 2014/03/09 v1.0q Thumb marks and overview page(s) (HMM)
picture.sty 2009/10/11 v1.3 Dimens for picture macros (HO)
alphalph.sty 2011/05/13 v2.4 Convert numbers to letters (HO)
pageslts.sty 2014/01/19 v1.2c Refers to special pages' numbers/names (HMM)
undolabl.sty 2012/01/01 v1.0k Overriding labels (HMM)
pagecolor.sty 2012/02/23 v1.0e Provides thepagecolor (HMM)
caption.sty 2013/05/02 v3.3-89 Customizing captions (AR)
caption3.sty 2013/05/02 v1.6-88 caption3 kernel (AR)
ltcaption.sty 2013/02/03 v1.3-62 longtable captions (AR)
subcaption.sty 2013/02/03 v1.1-62 Sub-captions (AR)
tocstyle.sty 2013/08/11 v0.2e-alpha LaTeX2e KOMA-Script package (versatile t
oc styles)
biblatex.sty 2014/06/25 v2.9a programmable bibliographies (PK/JW/AB)
biblatex2.sty 2014/06/25 v2.9a programmable bibliographies (biber) (PK/JW/AB
)
logreq.sty 2010/08/04 v1.0 xml request logger
logreq.def 2010/08/04 v1.0 logreq spec v1.0
blx-dm.def
authoryear.dbx
biblatex-dm.cfg
blx-compat.def 2014/06/25 v2.9a biblatex compatibility (PK/JW/AB)
biblatex.def
standard.bbx 2014/06/25 v2.9a biblatex bibliography style (PK/JW/AB)
authoryear.bbx 2014/06/25 v2.9a biblatex bibliography style (PK/JW/AB)
authoryear.cbx 2014/06/25 v2.9a biblatex citation style (PK/JW/AB)
biblatex.cfg
tex/commands.tex
german.lbx 2014/06/25 v2.9a biblatex localization (PK/JW/AB)
ngerman.lbx 2014/06/25 v2.9a biblatex localization (PK/JW/AB)
english.lbx 2014/06/25 v2.9a biblatex localization (PK/JW/AB)
american.lbx 2014/06/25 v2.9a biblatex localization (PK/JW/AB)
t3cmr.fd 2001/12/31 TIPA font definitions
lgrcmr.fd 2013/09/01 v1.0 Greek European Computer Regular
mt-ppl.cfg 2005/11/16 v1.6 microtype config. file: Palatino (RS)
thesis_main.out
thesis_main.out
glossaries-dictionary-English.dict
ot1ppl.fd 2001/06/04 font definitions for OT1/ppl.
omlzplm.fd 2002/09/08 Fontinst v1.914 font definitions for OML/zplm.
omszplm.fd 2002/09/08 Fontinst v1.914 font definitions for OMS/zplm.
omxzplm.fd 2002/09/08 Fontinst v1.914 font definitions for OMX/zplm.
mt-msa.cfg 2006/02/04 v1.1 microtype config. file: AMS symbols (a) (RS)
mt-msb.cfg 2005/06/01 v1.0 microtype config. file: AMS symbols (b) (RS)
ot1zplm.fd 2002/09/08 Fontinst v1.914 font definitions for OT1/zplm.
thesis_main.bbl
se-ascii-print.def 2011/12/02 v1.10 stringenc: Printable ASCII characters
t1pag.fd 2001/06/04 font definitions for T1/pag.
答案1
除了其他许多软件包之外，您似乎还安装了其他软件包（您真的需要所有这些软件包吗？）。
\documentclass{article}
\usepackage{fontspec}
\usepackage{mathpazo}
\begin{document}
abc \textbf{abc} \textit{abc} \emph{abc}
\end{document}
写入日志文件
LaTeX Font Warning: Font shape `EU1/ppl/m/n' undefined
(Font) using `EU1/lmr/m/n' instead on input line 7.
LaTeX Font Warning: Font shape `EU1/ppl/bx/n' undefined
(Font) using `EU1/ppl/m/n' instead on input line 9.
LaTeX Font Warning: Font shape `EU1/ppl/m/it' undefined
(Font) using `EU1/ppl/m/n' instead on input line 9.
结果是只使用直立的中等大小的拉丁现代罗马字体。
顺序应该反转，因为否则mathpazo会选择与 EU1 编码不兼容的文本字体。
\documentclass{article}
\usepackage{mathpazo}
\usepackage{fontspec}
\setmainfont{TeX Gyre Pagella} % For a Palatino text font
\begin{document}
abc \textbf{abc} \textit{abc} \emph{abc} $abc$
\end{document}
您还应该尝试更新您的 TeX 系统：TeX Live 2015 比当前版本落后三年。