Error content

_complete:96: bad math expression: operand expected at end of string

Cause: Zsh folder permission error

Solution:

1. view the location of the Zsh folder

compaudit
# my path is:
/usr/local/share/zsh/site-functions
/usr/local/share/zsh

Set folder user group and its user

sudo su
chown -R user.user /usr/local/share/zsh

Set folder permissions

# root
chmod g-w -R zsh/

Restart the command window