WinEdt 10.3在运行时出现这个,无法pdf预览,求大神解答

Command Line:   pdflatex.exe --interaction=errorstopmode --synctex=-1 "aaaaaa.tex"
Startup Folder: F:\aaa

This is pdfTeX, Version 3.14159265-2.6-1.40.19 (TeX Live 2018/W32TeX) (preloaded format=pdflatex)
 restricted \write18 enabled.
Use of uninitialized value $ver in scalar chomp at E:/texlive/2018/tlpkg/TeXLive/TLWinGoo.pm line 206.
Use of uninitialized value $ver in substitution (s///) at E:/texlive/2018/tlpkg/TeXLive/TLWinGoo.pm line 207.
Use of uninitialized value $ver in substitution (s///) at E:/texlive/2018/tlpkg/TeXLive/TLWinGoo.pm line 207.
fmtutil: fmtutil is using the following fmtutil.cnf files (in precedence order):
fmtutil:   e:/texlive/2018/texmf-dist/web2c/fmtutil.cnf
fmtutil: fmtutil is using the following fmtutil.cnf file for writing changes:
fmtutil:   c:/users/zjw19/.texlive2018/texmf-config/web2c/fmtutil.cnf
fmtutil [INFO]: writing formats under c:/users/zjw19/.texlive2018/texmf-var/web2c
fmtutil [INFO]: --- remaking pdflatex with pdftex
Can't spawn "cmd.exe": No such file or directory at e:\texlive\2018\texmf-dist\scripts\texlive\fmtutil.pl line 598.
fmtutil [WARNING]: inifile pdflatex.ini for pdflatex/pdftex not found.
fmtutil [INFO]: Disabled formats: 6
fmtutil [INFO]: Not selected formats: 43
fmtutil [INFO]: Failed to build: 1 (pdftex/pdflatex)
fmtutil [INFO]: Total formats: 50
fmtutil [INFO]: exiting with status 1
E:\texlive\2018\bin\win32\runscript.tlu:790: command failed with exit code 1:
perl.exe e:\texlive\2018\texmf-dist\scripts\texlive\fmtutil.pl  --user --byfmt pdflatex
Running the command E:\texlive\2018\bin\win32\fmtutil-user.exe
I can't find the format file `pdflatex.fmt'!

kpathsea: Running mktexfmt pdflatex.fmt

The command name is E:\texlive\2018\bin\win32\mktexfmt


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 PDFLaTeX Compilation Report (Pages: 0)

 Errors: 0   Warnings: 0   Bad Boxes: 0
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