ohmyzsh-无法启用未找到命令的插件

如何解决ohmyzsh-无法启用未找到命令的插件

[环境] MacOS Mojave

[shell] zsh

官方自述文件： https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/command-not-found

我按照说明进行操作，并仔细检查路径是否正确。 但是，我无法从ohmyzsh激活“命令未找到”插件的功能。

.zshrc的配置如下。

# If you come from bash you might have to change your $PATH.
# export PATH=$HOME/bin:/usr/local/bin:$PATH

# Path to your oh-my-zsh installation.
export ZSH="/Users/lance5566/.oh-my-zsh"

# Set name of the theme to load --- if set to "random",it will
# load a random theme each time oh-my-zsh is loaded,in which case,# to kNow which specific one was loaded,run: echo $RANDOM_THEME
# See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
ZSH_THEME="powerlevel10k/powerlevel10k"

# Set list of themes to pick from when loading at random
# Setting this variable when ZSH_THEME=random will cause zsh to load
# a theme from this variable instead of looking in ~/.oh-my-zsh/themes/
# If set to an empty array,this variable will have no effect.
# ZSH_THEME_RANDOM_CANDIDATES=( "robbyrussell" "agnoster" )

# Uncomment the following line to use case-sensitive completion.
# CASE_SENSITIVE="true"

# Uncomment the following line to use hyphen-insensitive completion.
# Case-sensitive completion must be off. _ and - will be interchangeable.
# HYPHEN_INSENSITIVE="true"

# Uncomment the following line to disable bi-weekly auto-update checks.
# disABLE_AUTO_UPDATE="true"

# Uncomment the following line to automatically update without prompting.
# disABLE_UPDATE_PROMPT="true"

# Uncomment the following line to change how often to auto-update (in days).
# export UPDATE_ZSH_DAYS=13

# Uncomment the following line if pasting URLs and other text is messed up.
# disABLE_MAGIC_FUNCTIONS=true

# Uncomment the following line to disable colors in ls.
# disABLE_LS_COLORS="true"

# Uncomment the following line to disable auto-setting terminal title.
# disABLE_AUTO_TITLE="true"

# Uncomment the following line to enable command auto-correction.
# ENABLE_CORRECTION="true"

# Uncomment the following line to display red dots whilst waiting for completion.
# COMPLETION_WAITING_DOTS="true"

# Uncomment the following line if you want to disable marking untracked files
# under VCS as dirty. This makes repository status check for large repositories
# much,much faster.
# disABLE_UNTRACKED_FILES_DIRTY="true"

# Uncomment the following line if you want to change the command execution time
# stamp shown in the history command output.
# You can set one of the optional three formats:
# "mm/dd/yyyy"|"dd.mm.yyyy"|"yyyy-mm-dd"
# or set a custom format using the strftime function format specifications,# see 'man strftime' for details.
# HIST_STAMPS="mm/dd/yyyy"

# Would you like to use another custom folder than $ZSH/custom?
# ZSH_CUSTOM=/path/to/new-custom-folder

# Which plugins would you like to load?
# Standard plugins can be found in ~/.oh-my-zsh/plugins/*
# Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
# Example format: plugins=(rails git textmate ruby lighthouse)
# Add wisely,as too many plugins slow down shell startup.
# ZSH_CUSTOM=/path/to/new-custom-folder

plugins=(git zsh-autosuggestions command-not-found)

source $ZSH/oh-my-zsh.sh

# User configuration

# export MANPATH="/usr/local/man:$MANPATH"

# You may need to manually set your language environment
# export LANG=en_US.UTF-8

# Preferred editor for local and remote sessions
# if [[ -n $SSH_CONNECTION ]]; then
#   export EDITOR='vim'
# else
#   export EDITOR='mvim'
# fi

# Compilation flags
# export ARCHFLAGS="-arch x86_64"

# Set personal aliases,overriding those provided by oh-my-zsh libs,# plugins,and themes. Aliases can be placed here,though oh-my-zsh
# users are encouraged to define aliases within the ZSH_CUSTOM folder.
# For a full list of active aliases,run `alias`.
#
# Example aliases
# alias zshconfig="mate ~/.zshrc"
# alias ohmyzsh="mate ~/.oh-my-zsh"
export PATH="/usr/local/opt/MysqL-client@5.7/bin:$PATH"


# To customize prompt,run `p10k configure` or edit ~/.p10k.zsh.
[[ ! -f ~/.p10k.zsh ]] || source ~/.p10k.zsh

source /usr/local/share/zsh-Syntax-highlighting/zsh-Syntax-highlighting.zsh

这是输出。

ag                                                                                                                   
zsh: command not found: ag

我还需要安装其他工具吗？