Issue:

The undo command fails to execute, displaying the error: "Cannot create Undo/Redo cache file. Undo function has been disabled. Please clean your system temporary directory and check if drive C has sufficient disk space."

Causes:

Incorrect configuration of the system‘s temporary folder path of environment variables.

Solution:

  1. Right-click This PC and select Properties.
  2. Open Advanced system settings, then go to Environment Variables.
  3. Under user variables, check the variable values of TMP and TEMP.
  4. If the value is %USERPROFILE%\AppData\Local\Temp, change it to an absolute path.
    Example: For user QG, set to C:\Users\QG\AppData\Local\Temp.
  5. Save settings and restart ZWCAD.


CN Solution★中望CAD命令行提示“无法创建Undo/Redo缓存文件”是为什么
JP Solution


★ZWCAD command line prompt: "Cannot create Undo/Redo cache file"：https://confluence.zwcad.com/pages/viewpage.action?pageId=317755673