C#. A GetLog(LogType.Browser); throw an error 'object reference not set to an instance of an object'

[manbadalyan]

🐛 Bug Report

A GetLog(LogType.Browser); throw an error 'object reference not set to an instance of an object'

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To Reproduce

ChromeOptions copts = new ChromeOptions();
copts.SetLoggingPreference(LogType.Browser, LogLevel.All);
var service = ChromeDriverService.CreateDefaultService(browserpath);
service.LogPath = browserpath+"\chromedriver.log";
service.EnableVerboseLogging = true;
WebDriver = new ChromeDriver(service, copts)

var logEntry = WebDriver.Manage().Logs.GetLog(LogType.Browser);
ChromeDriver version 79.0.3945.3600
Please help

Environment

OS:
Browser:
Browser version:
Browser Driver version:
Language Bindings version:
Selenium Grid version (if applicable):

[cath3r0]

what version of selenium are you using?

looks like it was resolved in #7390 for alpha-version, but stable is still suffering from this

[manbadalyan]

I use 3.141.0. But yesterday i used new 4.0.0 alfa 03 version, but i got an error ' Message: System.IO.FileNotFoundException : Could not load file or assembly 'WebDriver, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified. Stack Trace: PageObject.ctor() POLogin.ctor()' I guess it connected with SeleniumExtras.PageObjects 2020 թ. հնվ 9, հնգ, 17:49 cath3r0 <notifications@github.com> օգտատերը գրել է՝

…

what version of selenium are you using? looks like it was resolved in #7390 <#7390> for alpha-version, but stable is still suffering from this — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#7900?email_source=notifications&email_token=AHZ7EULBJFNKHH6LMLKCJOTQ44TPNA5CNFSM4KBMK5CKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEIQLP4Y#issuecomment-572569587>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHZ7EUMJFYKIOYTMO6RPFT3Q44TPNANCNFSM4KBMK5CA> .

[manbadalyan]

I've upgraded Selenium Webdriver/Support version to 4.0.0-alpha04, but now there are new errors

Severity Code Description Project File Line Suppression State
Error CS0012 The type 'ISearchContext' is defined in an assembly that is not referenced. You must add a reference to assembly 'WebDriver, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null'. PageObjects ...\PageObjects\PageObject.cs 20 N/A

Severity Code Description Project File Line Suppression State
Error CS0012 The type 'IWebDriver' is defined in an assembly that is not referenced. You must add a reference to assembly 'WebDriver, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null'. PageObjects ...\PageObjects\PageObject.cs 20 N/A

Severity Code Description Project File Line Suppression State
Error CS1503 Argument 2: cannot convert from 'PageObjects.PageObject' to 'SeleniumExtras.PageObjects.IElementLocator' PageObjects ...\PageObjects\PageObject.cs 20 N/A

Severity Code Description Project File Line Suppression State
Error CS0012 The type 'IWebDriver' is defined in an assembly that is not referenced. You must add a reference to assembly 'WebDriver, Version=3.10.0.0, Culture=neutral, PublicKeyToken=null'. PageObjects ...\PageObjects\PageObject.cs 101 N/A

[Bakanych]

Any updates on this?

[pujagani]

Thank you for providing the details and the updates. I attempted to re-create the issue as follows.

Reproduced using the code sample below:

namespace SeleniumClient
{
    public class LogTypeError
    {
        private ChromeDriver driver;

        [SetUp]
        public void Setup()
        {
            ChromeOptions options = new ChromeOptions();
            options.SetLoggingPreference(LogType.Browser, LogLevel.All);

            ChromeDriverService service = ChromeDriverService.CreateDefaultService("path", "chromedriver");
            service.LogPath =  "path/chromedriver.log";
            service.EnableVerboseLogging = true;

            driver = new ChromeDriver(service, options);

        }

        [Test]
        public void logTypeErrorTest()
        {
            driver.Url = "http://www.yahoo.com";
            var logEntry = driver.Manage().Logs.GetLog(LogType.Browser);
            Assert.NotZero(logEntry.Count);
            driver.Quit();
        }
    }
}

Result
The test passes

Environment
OS: MacOS High Sierra
Browser: Chrome
Browser version: 89.0.4389.114
Browser Driver version: ChromeDriver 89.0.4389.23
Language Bindings version: 4.0.0-beta2

I would recommend upgrading to the latest version 4.0.0-beta2 and check if the problem still persists. Thank you!

[github-actions]

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