How to solve 'Getting Default Adapter failed' error when launching Chrome and try to access a webpage using the ChromeDriver using Selenium

Question

I have updated Selenium but the error keeps occurring even though the web page loads. However, in some instances, the driver starts but it is stagnant. Is this causing an issue and if so, how do I resolve it?

[11556:9032:0502/152954.314:ERROR:device_event_log_impl.cc(162)] [15:29:54.314] Bluetooth: bluetooth_adapter_winrt.cc:1055 Getting Default Adapter failed.

Answer 1

This error message...

ERROR:device_event_log_impl.cc(162)] [15:29:54.314] Bluetooth: bluetooth_adapter_winrt.cc:1055 Getting Default Adapter failed.

...implies that ScopedClosureRunner on_init failed in BluetoothAdapterWinrt::OnGetDefaultAdapter().

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Analysis

This error is defined in bluetooth_adapter_winrt.cc as follows:

void BluetoothAdapterWinrt::OnGetDefaultAdapter(
    base::ScopedClosureRunner on_init,
    ComPtr<IBluetoothAdapter> adapter) {
  DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
  if (!adapter) {
    BLUETOOTH_LOG(ERROR) << "Getting Default Adapter failed.";
    return;
  }

---

Solution

Ensure that:

• Selenium is upgraded to current levels Version 3.141.59.
• ChromeDriver is updated to current ChromeDriver v84.0 level.
• Chrome is updated to current Chrome Version 84.0 level. (as per ChromeDriver v84.0 release notes)
• If your base Web Client version is too old, then uninstall it and install a recent GA and released version of Web Client.

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Additional considerations

However it was observed that this error can be supressed by running Chrome as root user (administrator) on Linux. but that would be a deviation from the documentation in ChromeDriver - WebDriver for Chrome where it is mentioned:

A common cause for Chrome to crash during startup is running Chrome as root user (administrator) on Linux. While it is possible to work around this issue by passing '--no-sandbox' flag when creating your WebDriver session, i.e. the ChromeDriver session as such a configuration is unsupported and highly discouraged.

Ideally, you need to configure your environment to run Chrome as a regular user instead.

---

Suppressing the error

Finally, as per the documentation in Selenium Chrome Driver: Resolve Error Messages Regarding Registry Keys and Experimental Options these error logs can be supressed by adding the argument:

excludeSwitches: ['enable-logging']

So your effective code block will be:

from selenium import webdriver

options = webdriver.ChromeOptions() 
options.add_experimental_option("excludeSwitches", ["enable-logging"])
driver = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
driver.get("https://www.google.com/")