LaTeX Error: Environment CJKfilltwosides undefined.

Welcome to the markdown editor

Compile under textlive 2020
latex error: environment cjkfilltwosides undefined.
cquthesis reports an error

Solution:
Modify \RequirePackage{CJKfntef} to \RequirePackage{xeCJKfntef} in cquthesis.dtx

Read More:

• [Solved] Overleaf Compile the Paper Error: LaText Error:Environment aligned undefined.
• [Solved] Spring Nature latex Error: Getting the error “Missing $ inserted” in LaTeX
• [Solved] Using `babel-preset-react-app` requires that you specify `NODE_ENV` or `BABEL_ENV` environment variables. Valid values are “development”, “test”, and “production”. Instead, received: undefined.
• Error in loading latex project compilation [How to Solve]
• [Solved] LaTeX Error: File ‘‘picins.sty‘‘ not Found.
• latex Package inputenc Error: Invalid UTF-8 byte “A1
• [Solved] Latex&VScode Error: I found no bibdata command//command//citation—while reading file*.aux
• Solution to latex “too many unprocessed floats” error
• [Solved] Cannot read properties of undefined (reading ‘ajax‘); Cannot read property ‘ajax‘ of undefined
• [Solved] latex Compile llncs2e reference error locally
• [Solved] VSCode Edit LaTeX Error: Recipe terminated with error.
• [Solved] LaTeX Error: Command `\Bbbk‘ already defined.
• error: undefined reference to `calculate()` [How to Solve]
• [Solved] Qt Error: undefined reference to xxxxx
• [Solved] LaTex Error: Critical Package ctex Error: CTeX fontset `fandol‘ is unavailable in current(ctex) mode. }
• Configure. AC: error: possibly undefined macro [How to Solve]
• [Solved] cortex_M3 freeRTOS Error: undefined reference to `_sbrk‘
• [Solved] Vue + uniapp Uncaught TypeError: Cannot read property ‘getters‘ of undefined
• [Solved] LaTeX Error: \Url Error -＞\url used in a moving argument.
• Element table Error: ‘tableId‘ of undefined“ [How to Solve]