Protractor 5.4.2 uses webdriver-manager 12 which downloads Chromedriver 2.46. Chromedriver 2.46 supports Chrome 71-73 (see http://chromedriver.chromium.org/downloads). We ne
Try installing chromedriver v. 74.0.3729.6 (Chrome 74) LOCALLY AND GLOBALLY
for the global installation run
webdriver-manager update --versions.chrome 74.0.3729.6
for local installation run something like
node ./node_modules/protractor/bin/webdriver-manager update --versions.chrome 74.0.3729.6
List of driver versions is here http://chromedriver.chromium.org/downloads
Possibly you'll face this issue update protractor chrome driver to 74, see my comment there
Let me know if you run into issues