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I want to use Selenium WebDriver to run automated tests in a browser that is embedded in an application

enter image description here I write code like that: 

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
import time

TOOL_LOCATION = r"C:\my_app\app.exe"
chrome_options = Options()
chrome_options.binary_location = TOOL_LOCATION

driver = webdriver.Remote(command_executor='http://test-dev:4444/wd/hub',
                      desired_capabilities=chrome_options.to_capabilities())

driver.find_element_by_name("input")
time.sleep(1)
driver.close()

When i start my test i'm getting following error:

 selenium.common.exceptions.WebDriverException: Message: unknown error: DevToolsActivePort file doesn't exist

How to fix this?

Allen Gosta
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1 Answers1

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Check the browser version and chromedriver version as a first thing.

or, You need to Add --disable-dev-shm-usage to default launch flags. check the url

[ However as per Add --disable-dev-shm-usage to default launch flags seems adding the argument --disable-dev-shm-usage will temporary solve the issue.]

url: WebDriverException: unknown error: DevToolsActivePort file doesn't exist while trying to initiate Chrome Browser

Eric
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