在 R 中运行 Latex 时如何解决此错误？

如何解决在 R 中运行 Latex 时如何解决此错误？

我正在尝试使用 R 在乳胶中生成一些图，这是代码：

msaPrettyPrint(seq_mapped,output="pdf",showNames="none",showlogo="none",askForOverwrite=FALSE,verbose=FALSE)

和错误：

Error in texi2dvi(texfile,quiet = !verbose,pdf = identical(output,"pdf"),: 
  unable to run pdflatex on 'seq_mapped.tex'
LaTeX errors:
! Paragraph ended before \inf@@get was complete.
<to be read again> 
                   \par 
l.25 ...e}{/tmp/RtmppWEuqI/seq108d544be5486.fasta}
                                                  
! Misplaced alignment tab character &.
\msfline ->\par &
                  & & & @
l.25 ...e}{/tmp/RtmppWEuqI/seq108d544be5486.fasta}
                                                  
! Misplaced alignment tab character &.
\msfline ->\par & &
                    & & @
l.25 ...e}{/tmp/RtmppWEuqI/seq108d544be5486.fasta}
                                                  
! Misplaced alignment tab character &.
\msfline ->\par & & &
                      & @
l.25 ...e}{/tmp/RtmppWEuqI/seq108d544be5486.fasta}
                                                  
! Misplaced alignment tab character &.
\msfline ->\par & & & &
                        @
l.25 ...e}{/tmp/RtmppWEuqI/seq108d544be5486.fasta}

我也试过：

msaPrettyPrint(seq_mapped,output="tex",verbose=FALSE)
tools::texi2pdf("seq_mapped.tex",clean=TRUE)

但还是有错误

Error in texi2dvi(file = file,pdf = TRUE,clean = clean,quiet = quiet,: 
  Running 'texi2dvi' on 'seq_mappedt.tex' Failed.
LaTeX errors:
! LaTeX Error: File `texshade.sty' not found.

Type X to quit or <RETURN> to proceed,or enter new name. (Default extension: sty)

! Emergency stop.
<read *> 
         
l.4 ^^M
       
!  ==> Fatal error occurred,no output PDF file produced!

但是，texshade.sty 已安装：

system.file("tex","texshade.sty",package="msa")
[1] ".../R/x86_64-pc-linux-gnu-library/4.1/msa/tex/texshade.sty"

有什么想法吗？ 仅供参考：Ubuntu 20.04.2 LTS 焦点

谢谢