Image recognition not working

[Abur73]

While testing image recognition, I was not able to make it work.

Appium Desktop 1.7.0

[2018-09-12 10:54:41][BaseDriver] Verifying screenshot size and aspect ratio
[2018-09-12 10:54:41][BaseDriver] Screenshot size matched screen size
[2018-09-12 10:54:41][W3C] Encountered internal error running command: Error: opencv4nodejs module is required to use OpenCV features. Please install it first (npm i -g opencv4nodejs) and restart Appium. Read https://github.com/justadudewhohacks/opencv4nodejs#how-to-install for more details on this topic.
[2018-09-12 10:54:41][W3C] at initOpenCV (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/appium-support/lib/image-util.js:100:11)
[2018-09-12 10:54:41][W3C] at Object.getImageOccurrence$ (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/appium-support/lib/image-util.js:420:3)
[2018-09-12 10:54:41][W3C] at tryCatch (/Applications/Appium.app/Contents/Resources/app/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)

Nevertheless, opencv4nodejs is already installed

$ npm list -g --depth=0
/usr/local/lib
├── npm@5.6.0
└── opencv4nodejs@4.7.5

[Abur73]

Got it working for standalone Appium 1.9.0 though.

$ npm list -g --depth=0
/usr/local/lib
├── appium@1.9.0
├── npm@5.6.0
└── opencv4nodejs@4.7.5

2018-09-12 11:29:27:078 - [BaseDriver] Finding image element with match threshold 0.4
2018-09-12 11:29:27:078 - [debug] [AndroidBootstrap] Sending command to android: {"cmd":"action","action":"getDeviceSize","params":{}}
2018-09-12 11:29:27:080 - [debug] [AndroidBootstrap] [BOOTSTRAP LOG] [debug] Got data from client: {"cmd":"action","action":"getDeviceSize","params":{}}
2018-09-12 11:29:27:081 - [debug] [AndroidBootstrap] [BOOTSTRAP LOG] [debug] Got command of type ACTION
2018-09-12 11:29:27:081 - [debug] [AndroidBootstrap] [BOOTSTRAP LOG] [debug] Got command action: getDeviceSize
2018-09-12 11:29:27:082 - [debug] [AndroidBootstrap] [BOOTSTRAP LOG] [debug] Returning result: {"status":0,"value":{"height":800,"width":480}}
2018-09-12 11:29:27:082 - [debug] [AndroidBootstrap] Received command result from bootstrap
2018-09-12 11:29:27:082 - [debug] [BaseDriver] Waiting up to 0 ms for condition