[🐛 Bug]: Get error session not created: probably user data directory is already in use when updating to chrome 138

[davee1]

Description

I am using selenium with c#, .net 9. Have been using for the past several years to scrape web pages since .net core 5. Has been working great. Had the exact same configuration for several years. When upgrading from 137 to 138 (just tested chromedriver 138.0.7204.157, also fails in 139). When I call
Browser = new ChromeDriver(path, options);
I get
BaseWeb.ctor: Could not create browser
System.InvalidOperationException: session not created: probably user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir (SessionNotCreated)
at OpenQA.Selenium.WebDriver.UnpackAndThrowOnError(Response errorResponse, String commandToExecute)
at OpenQA.Selenium.WebDriver.ExecuteAsync(String driverCommandToExecute, Dictionary2 parameters) at OpenQA.Selenium.WebDriver.Execute(String driverCommandToExecute, Dictionary2 parameters)
at OpenQA.Selenium.WebDriver.StartSession(ICapabilities capabilities)
at OpenQA.Selenium.WebDriver..ctor(ICommandExecutor executor, ICapabilities capabilities)
at OpenQA.Selenium.Chromium.ChromiumDriver..ctor(ChromiumDriverService service, ChromiumOptions options, TimeSpan commandTimeout)
at OpenQA.Selenium.Chrome.ChromeDriver..ctor(ChromeDriverService service, ChromeOptions options, TimeSpan commandTimeout)
at OpenQA.Selenium.Chrome.ChromeDriver..ctor(String chromeDriverDirectory, ChromeOptions options, TimeSpan commandTimeout)
at OpenQA.Selenium.Chrome.ChromeDriver..ctor(String chromeDriverDirectory, ChromeOptions options)
at Geonovi.WebBrowser.BaseWeb.StartBrowser(Boolean incognito, Boolean hideBrowser) in C:\src\phoenix\WebBrowser\BaseWeb.cs:line 120

I am not setting user-data-dir. The options I am setting are
var options = new ChromeOptions()
{
BinaryLocation = chromeLocation, //path to chrome.exe
};
DirectoryInfo dir = Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()));
DownloadPath = dir.FullName;
options.AddUserProfilePreference("download.default_directory", DownloadPath);
options.AddExcludedArgument("enable-automation");
options.AddAdditionalChromeOption("useAutomationExtension", false);
options.AddArgument("--disable-blink-features=AutomationControlled");

The exact same code works fine with 137 or earlier, but fails with 138 or later.

Reproducible Code

var options = new ChromeOptions()
{
    BinaryLocation = chromeLocation,  //path to chrome.exe
};
DirectoryInfo dir = Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()));
DownloadPath = dir.FullName;
options.AddUserProfilePreference("download.default_directory", DownloadPath);
options.AddExcludedArgument("enable-automation");
options.AddAdditionalChromeOption("useAutomationExtension", false);
options.AddArgument("--disable-blink-features=AutomationControlled");
Browser = new ChromeDriver(path, options);  //path is set to chromedriver path

[selenium-ci]

@davee1, thank you for creating this issue. We will troubleshoot it as soon as we can.

Selenium Triage Team: remember to follow the Triage Guide

[ccea-dev-team]

We have the same issue - selenide/selenide#3061

It's to do with chrome or chrome driver running under a user on windows set as local administrator. This is a problem when running though jenkins as our jenkins agent needs those permssions.

[diemol]

Duplicate of #15743

[ccea-dev-team]

@diemol

Thanks for your reply. However I don't think that issue you linked explains the problem or the resolution.

1. The issue starting happening on chrome 138 not 136 or 137 where the changes you state occured.

2. Tests run fine if I use a non admin local account. The issue is when I was using the jenkins agent user which had local admin.

[diemol]

Got it, then please create an issue at the Chrome bug tracker.

[selenium-ci]

Hi, @davee1.
This issue has been determined to require fixes in ChromeDriver.

You can see if the feature is passing in the Web Platform Tests.

If it is something new, please create an issue with the ChromeDriver team.
Feel free to comment the issues that you raise back in this issue. Thank you.