Nightwatch : Unable to create new service : ChromeDriverService - node.js

Question

I am trying to automate a simple test case using Nightwatch framework of validating a login. I have followed the steps mentioned on : https://www.softwaretestingmaterial.com/browser-automation-with-nightwatch-and-selenium/
The problem arises when I execute the command node nightwatch tests/bing_test.js in node.js command prompt which results in a error message.
Below is my nightwatch.json configs :
{
"src_folders": ["tests"],
"output_folder": "reports",
"custom_commands_path": "",
"custom_assertions_path": "",
"page_objects_path": "",
"globals_path": "",
"selenium": {
"start_process": true,
"server_path": "./lib/selenium-server-standalone-3.8.1.jar",
"log_path": "./reports",
"host": "127.0.0.1",
"port": 4445,
"cli_args": {
"webdriver.chrome.driver": "./lib/drivers/chromedriver.exe",
"webdriver.gecko.driver": "./lib/drivers/geckodriver.exe",
"webdriver.edge.driver": "./lib/drivers/MicrosoftWebDriver.exe"
}
},
"test_settings": {
"default": {
"launch_url": "http://localhost",
"selenium_port": 4445,
"selenium_host": "localhost",
"silent": true,
"screenshots": {
"enabled": true,
"path": "./reports/screenshots"
},
"desiredCapabilities": {
"browserName": "chrome",
"marionette": true,
"javascriptEnabled": true,
"acceptSslCerts": true
}
},
"chrome": {
"desiredCapabilities": {
"browserName": "chrome"
}
},
"firefox": {
"desiredCapabilities": {
"browserName": "firefox"
}
},
"edge": {
"desiredCapabilities": {
"browserName": "MicrosoftEdge"
}
}
}
}
Error Message :
[Bing Test] Test Suite
======================
Response 500 POST /wd/hub/session (363ms)
{ value:
{ error:
[ "Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T19:05:32.194Z'",
"System info: host: 'PDC2LAP-7173253', ip: '192.168.43.196', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_201'",
'Driver info: driver.version: unknown' ],
message: 'Unable to create new service: ChromeDriverService' },
status: 33 }
An error occurred while retrieving a new session: "Unable to create new service: ChromeDriverService"
at endReadableNT (_stream_readable.js:1129:12)
at processTicksAndRejections (internal/process/next_tick.js:76:17)
_________________________________________________
TEST FAILURE: 1 error during execution 0 tests failed, 0 passed. 2.886s
× bing_test
An error occurred while retrieving a new session: "Unable to create new service: ChromeDriverService"
at endReadableNT (_stream_readable.js:1129:12)
at processTicksAndRejections (internal/process/next_tick.js:76:17)
SKIPPED:
- Bing search test
I have tried to debug the issue by going through the comments on GIT forum by setting "webdriver.chrome.driver": "" and "start_process": false, but none of the two worked.
ChromeDriver Version - v72
Selenium Standalone Jar - 3.8.1
Please feel free to guide me to any existing answer/documentation that persists for this issue.