org.openqa.selenium.WebDriverException: unknown error: call function result missing 'value'
I was seeing the same issue. The problem only appears when using Chrome 65 (currently: dev channel). With Chrome 64 (both stable channel and beta channel) everything worked fine.
It turns out I had an old chromedriver installed. Specifically, I was using chrome=65.0.3325.51
with chromedriver=2.29.461585
. Running npm install -g chromedriver
bumped chromedriver to 2.35.528157 and now the problem is solved. Hope this helps!
TL;DR: run npm install -g chromedriver
The error says it all :
Exception in thread "main" org.openqa.selenium.WebDriverException: unknown error: call function result missing 'value'
(Session info: chrome=65.0.3325.31)
(Driver info: chromedriver=2.33.506120 (e3e53437346286c0bc2d2dc9aa4915ba81d9023f),platform=Windows NT 6.1.7601 SP1 x86)
(WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 0 milliseconds
Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T19:05:32.194Z'
Your main issue is the version compatibility between the binaries you are using as follows :
- You are using chromedriver=2.33
- Release Notes of chromedriver=2.33 clearly mentions the following :
Supports Chrome v60-62
- You are using chrome=65.0
- Release Notes of ChromeDriver v2.37 clearly mentions the following :
Supports Chrome v64-66
So there is a clear mismatch between the ChromeDriver version (v2.33) and the Chrome Browser version (v65.0)
Solution
- Upgrade ChromeDriver to current ChromeDriver v2.37 level.
- Keep Chrome version at Chrome v65.x levels. (as per ChromeDriver v2.37 release notes)
- Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
- Use CCleaner tool to wipe off all the OS chores before and after the execution of your test Suite.
- If your base Web Client version is too old, then uninstall it through Revo Uninstaller and install a recent GA and released version of Web Client.
- Execute your
@Test
.
The latest chrome browser requires corresponding latest chromedriver executable for the tests to run.