@sdetweil Thanks, Sam.
It was a kind of network issue.
I used hotspot from my cellphone and I could done the installation.
I have to find out why my LAN has that kind of problem.
Anyway thanks a lot.

@sdetweil I’ve done this

npm i -g npm

but still same problem happens.

And I couldn’t find the ‘install.log’ file.

the link below is npm log file just in case this helps.

https://drive.google.com/file/d/1J3IMZ6g4bhwmVW-gAH7b8vmJDG_u_vwn/view?usp=sharing

@sdetweil Thanks for the answering.
I tried the new script you offer

bash -c "$(curl -sL https://www.dropbox.com/s/rlh710ng0zwv3vp/raspberry.sh?dl=0)"

Unfortunately, result is the same error. Am I understand you right?

I just bought Raspberry PI 4 (it means I’m noob)
I tried to install MagicMirror with the code below

bash -c "$(curl -sL https://raw.githubusercontent.com/MichMich/MagicMirror/master/installers/raspberry.sh)"

and I countered an error like below

Installing dependencies ...
npm WARN deprecated time-grunt@2.0.0: Deprecated because Grunt is practically unmaintained. Move on to something better. This package will continue to work with Grunt v1, but it will not receive any updates.

> electron-chromedriver@1.8.0 install /home/pi/MagicMirror/node_modules/electron-chromedriver
> node ./download-chromedriver.js

/home/pi/MagicMirror/node_modules/electron-chromedriver/download-chromedriver.js:30
  if (err != null) throw err
                   ^

Error: getaddrinfo EAI_AGAIN github-production-release-asset-2e65be.s3.amazonaws.com github-production-release-asset-2e65be.s3.amazonaws.com:443
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)
npm WARN acorn-jsx@5.1.0 requires a peer of acorn@^6.0.0 || ^7.0.0 but none is installed. You must install peer dependencies yourself.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! electron-chromedriver@1.8.0 install: `node ./download-chromedriver.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the electron-chromedriver@1.8.0 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/pi/.npm/_logs/2019-11-03T20_21_39_172Z-debug.log
Unable to install dependencies!

My npm version is V6.12.1 and node version is v10.15.2 and Raspbian image filename was ‘2019-09-26-raspbian-buster-full’.

I’m sorry to ask this kind of unproductive thing but I really need your help.