Latex错误 File `l3backend-pdfmode.def' not found. { \sys_load_backend:n { } }

Problem

运行Latex,出现 File `l3backend-pdfmode.def’ not found. { \sys_load_backend:n { } } 的错误

Solution

Windows系统下:

  1. 管理员身份打开 MikTeX Console (MikTeX 控制台)
  2. 左边竖排菜单栏选择 Update -> 点击 Check for Update
  3. checking后点击 Update Now
  4. 左边竖排菜单栏选择 Packages -> 搜索 l3backend 包并安装

Reference

https://tex.stackexchange.com/questions/499082/file-l3backend-pdfmode-def-not-found-when-loading-expl3

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