How to complete appium-doctor (iOS part)

Install Xcode, node, appium and, Appium-doctor
and launch appium-doctor.
Unfinished items are like as belows.

appium-doctor --ios

WARN AppiumDoctor ✖ Carthage was NOT found!
WARN AppiumDoctor ✖ opencv4nodejs cannot be found.
WARN AppiumDoctor ✖ ffmpeg cannot be found
WARN AppiumDoctor ✖ mjpeg-consumer cannot be found.
WARN AppiumDoctor ✖ set-simulator-location is not installed
WARN AppiumDoctor ✖ idb and idb_companion are not installed
WARN AppiumDoctor ✖ applesimutils cannot be found
WARN AppiumDoctor ✖ ios-deploy cannot be found

Finish step by step these items.

Carthage

brew install carthage

opencv4nodejs

brew install opencv@4
npm -g install opencv4nodejs

if you failed to install opencv4nodejs via npm, command ln to connect 4.5.0_5 folder to 4.6.0 folder. and launch npm -g install opencv4nodejs again.

ln -s /usr/local/Cellar/opencv/4.5.0_5 /usr/local/Cellar/opencv/4.6.0

mjpeg-consumer

npm i -g mjpeg-consumer

set-simulator-location

brew install lyft/formulae/set-simulator-location

idb

brew tap facebook/fb
brew install idb-companion
pip3 install fb-idb

applesimutils

brew tap wix/brew
brew install applesimutils

ios-deploy

brew install ios-deploy