这是我第一次使用 LaTex。我安装了 basic-miktex-20.11-x64 和 basic-miktex-21.2-x64（最新版本），在这两种情况下我都遇到了相同的错误。我尝试了两个不同的编辑器，错误是一样的：
Sorry, but "MiKTeX Configuration Utility" did not succeed.
The log file hopefully contains the information to get MiKTeX going again:
C:\Users\dell\AppData\Local\MiKTeX\miktex\log\initexmf.log
2021-04-13 19:33:48,695+0100 FATAL pdflatex.core - The memory dump file could not be found.
2021-04-13 19:33:48,695+0100 FATAL pdflatex.core - Data: fileName="pdflatex.fmt"
2021-04-13 19:33:48,695+0100 FATAL pdflatex.core - Source: Libraries\MiKTeX\TeXAndFriends\texmfapp.cpp:715
2021-04-13 19:33:48,695+0100 FATAL pdflatex - The memory dump file could not be found.
2021-04-13 19:33:48,696+0100 FATAL pdflatex - Info: fileName="pdflatex.fmt"
2021-04-13 19:33:48,696+0100 FATAL pdflatex - Source: Libraries\MiKTeX\TeXAndFriends\texmfapp.cpp
2021-04-13 19:33:48,696+0100 FATAL pdflatex - Line: 715
2021-04-13 19:33:48,696+0100 INFO pdflatex - this process (5184) finishes with exit code 1
2021-04-13 19:33:48,699+0100 FATAL pdflatex - major issue: So far, you have not checked for MiKTeX updates.
在 C:\Users\dell\AppData\Local\MiKTeX\miktex\log\makefmt\pdflatex 文件中：
! LaTeX3 Error: File 'UnicodeData.txt' not found.
For immediate help type H <return>.
...
l.28153 }
! ==> Fatal error occurred, no output PDF file produced!
我尝试更新 Unicode 数据的包数据库，但收到错误：传输了部分文件