WebDriverError: disconnected: unable to connect to

Question

Meta -

OS: OSX 10.12.6 (16G29)

~./node_modules/chromedriver/bin/chromedriver  -v
ChromeDriver 2.32.498537 (cb2f855cbc7b82e20387eaf9a43f6b99b6105061)

~ $ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.7/Contents/Home

~ $ node -v
v6.11.2

Browser:

Chrome Version 62.0.3202.62 (Official Build) (64-bit)

Browser Version:

62.0.3202.62 (Official Build) (64-bit)

Expected Behavior -

A Chrome session should start and the script should execute till the end

Actual Behavior -

The browser is started but the script immedialy crashes.

Code:

> ucb-client@2.97.3 selenium-local /Users/Georgios/Development/rocket-internet/ucb-client
> node test/automation-tests/testcases/happy-path/Local_Guest_Cash.js

/Users/Georgios/Development/rocket-internet/ucb-client/node_modules/selenium-webdriver/lib/promise.js:2634
        throw error;
        ^

WebDriverError: disconnected: unable to connect to renderer
  (Session info: chrome=62.0.3202.62)
  (Driver info: chromedriver=2.32.498537 (cb2f855cbc7b82e20387eaf9a43f6b99b6105061),platform=Mac OS X 10.12.6 x86_64)
    at WebDriverError (/Users/Georgios/Development/rocket-internet/ucb-client/node_modules/selenium-webdriver/lib/error.js:27:5)
    at Object.checkLegacyResponse (/Users/Georgios/Development/rocket-internet/ucb-client/node_modules/selenium-webdriver/lib/error.js:529:15)
    at parseHttpResponse (/Users/Georgios/Development/rocket-internet/ucb-client/node_modules/selenium-webdriver/lib/http.js:509:13)
    at doSend.then.response (/Users/Georgios/Development/rocket-internet/ucb-client/node_modules/selenium-webdriver/lib/http.js:441:30)
    at process._tickCallback (internal/process/next_tick.js:109:7)
From: Task: WebDriver.manage().window().setSize(1280, 720)
    at thenableWebDriverProxy.schedule (/Users/Georgios/Development/rocket-internet/ucb-client/node_modules/selenium-webdriver/lib/webdriver.js:807:17)
    at Window.setSize (/Users/Georgios/Development/rocket-internet/ucb-client/node_modules/selenium-webdriver/lib/webdriver.js:1677:25)
    at Object.<anonymous> (/Users/Georgios/Development/rocket-internet/ucb-client/test/automation-tests/testcases/happy-path/Local_Guest_Cash.js:8:26)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.runMain (module.js:604:10)
    at run (bootstrap_node.js:389:7)
Actual script (beginning)

require('chromedriver');
var webdriver = require('selenium-webdriver'),
By = webdriver.By,
until = webdriver.until;
var driver = new webdriver.Builder().forBrowser('chrome').build();
var timeout = 15000;

Answer 1

You are using the chromediver 2.32 and in the release notes there is written that the support is for Chrome v59-61

As browser you have:

Chrome Version 62.0.3202.62 (Official Build) (64-bit) 

So, from ChromeDriver, you should use the 2.33

Answer 2

I had similar error. But versions were matching: I was using Chrome 65 with driver version 2.38.

I spent long time, trying to understand the issue. At the end, found that it was caused by empty /etc/hosts file. Apparently Chrome communicates via localhost, and if such entry missing in /etc/hosts - it will crash.

So, make sure, it has entry like this:

127.0.0.1 localhost

Answer 3

It causes because page took long time to load , you need add additional line to your script

System.setProperty("webdriver.chrome.driver","E:\\selenium\\chromedriver_2.41\\chromedriver.exe");
//mention the below chrome option to solve timeout exception issue
ChromeOptions options = new ChromeOptions();
options.setPageLoadStrategy(PageLoadStrategy.NONE);
// Instantiate the chrome driver
driver = new ChromeDriver(options);

Answer 4

Here's an brew addendum to @davide-patti solution. :)

When I was getting the error unable to connect to renderer, I learned from @davide-patti that I was using an older version of chromedriver, v2.32. But I was unable to upgrade my chromedriver with homebrew, as I received continually: No available formula with the name "chromedriver".

This article helped me a lot to upgrade to v2.33+.

About: Error: No available formula with the name "chromedriver" https://github.com/Homebrew/brew/issues/4089