HELP！undetected_chromedriver(142.0.7444.175) is not work on Google Chrome (142.0.7444.176)

[19uni94]

Hello everyone,

      I  run the undetected_chromedriver  , when chrome open , it was immediately  closed the window. 
      This are my use version
      chrome ：142.0.7444.176 (正式版本) (64 位元) (cohort: Control) 
      undetected_chromedriver：142.0.7444.175
      
      error message.：

      selenium.common.exceptions.SessionNotCreatedException: Message: session not created: cannot connect to chrome at 

127.0.0.1:63404

from session not created: This version of ChromeDriver only supports Chrome version 143
Current browser version is 142.0.7444.176; For documentation on this error, please visit: https://www.selenium.dev/documentation/webdriver/troubleshooting/errors#sessionnotcreatedexception
Stacktrace:
Symbols not available. Dumping unresolved backtrace:
0x5c0d13
0x5c0d54
0x3ae6dd
0x3ea958
0x3e9992
0x3dfbe5
0x3dfa16
0x427826
0x427047
0x41b2e6
0x3ed321
0x3ee1d4
0x814d54
0x81030b
0x82cbea
0x5dac18
0x5e2c1d
0x5c9018
0x5c91d9
0x5b3568
0x7590fcc9
0x77a282ae
0x77a2827e

INFO:uc:ensuring close
DEBUG:uc:webdriver process ended
Exception ignored in: <function Chrome.del at 0x000001A602DDFC40>

[self-hood]

Hey! I ran into this exact same issue last week, so I feel your pain 😊

Problem

~ This version of ChromeDriver only supports Chrome version 143
~ Current browser version is 142.0.7444.176

basically, undetected_chromedriver grabbed ChromeDriver 143, but your Chrome is still on 142. Theyre having a fight and refusing to work together.

Quick Fixes

1. Let it handle everything automatically (recommended)

import undetected_chromedriver as uc

driver = uc.Chrome(use_subprocess=True)
driver.get("https://www.google.com")
# no manual paths

2. Force it to match your Chrome version

if auto-detection fails:

import undetected_chromedriver as uc

driver = uc.Chrome(version_main=142, use_subprocess=True)
driver.get("https://www.google.com")

3. Update Chrome to 143

go to chrome://settings/help and let Chrome update itself. Sometimes the simplest solution is the best one.

4. Nuclear option - fresh install

pip uninstall undetected-chromedriver
pip cache purge  # clear cached versions
pip install undetected-chromedriver --no-cache-dir

Pro Tips from the Trenches

the use_subprocess=True is crucial - without it, Chrome tends to close immediately because of how the process management works. Always include it.

dont mess with manual paths unless you absolutely have to:

# error
driver = uc.Chrome(driver_executable_path="/chromedriver")

# do this instead
driver = uc.Chrome(use_subprocess=True)

if Chrome keeps closing instantly, try these options:

import undetected_chromedriver as uc

options = uc.ChromeOptions()
options.add_argument('--no-sandbox')
options.add_argument('--disable-dev-shm-usage')
options.add_argument('--disable-blink-features=AutomationControlled')

driver = uc.Chrome(options=options, use_subprocess=True)

check your Chrome installation path - sometimes undetected_chromedriver cant find Chrome if its installed in a no-standard location:

import undetected_chromedriver as uc

# for windows with custom location
options = uc.ChromeOptions()
options.binary_location = r"C:\Program Files\Google\Chrome\Application\chrome.exe"

driver = uc.Chrome(options=options, use_subprocess=True)

Why This Happens

chrome auto-updates in the background like an overachiever, but ChromeDriver releases lag behind by a few days/weeks. the undetected_chromedriver library tries to grab the latest ChromeDriver, which sometimes jumps ahead of your actual Chrome version.

Related Issues

Check out these similar discussions:

• #1632 - version mismatch fixes
• #1954 - chrome closing immediately

My Setup (for reference)

when I fixed this issue, here's what worked for me:

import undetected_chromedriver as uc
import time

options = uc.ChromeOptions()
options.add_argument('--start-maximized')

driver = uc.Chrome(options=options, use_subprocess=True, version_main=142)

try:
    driver.get("https://www.google.com")
    time.sleep(5)  # give it a moment to load
    print("Success! Chrome is running.")
except Exception as e:
    print(f"Error: {e}")
finally:
    # driver.quit()
    pass

let me know which solution worked for you! Would love to hear if you found a different fix too 👍

---

System: Windows 10 
Python: 3.11  
undetected-chromedriver: 3.5.5

[19uni94]

Hey! I ran into this exact same issue last week, so I feel your pain 😊

Problem

~ This version of ChromeDriver only supports Chrome version 143
~ Current browser version is 142.0.7444.176

basically, undetected_chromedriver grabbed ChromeDriver 143, but your Chrome is still on 142. Theyre having a fight and refusing to work together.

Quick Fixes

1. Let it handle everything automatically (recommended)

import undetected_chromedriver as uc

driver = uc.Chrome(use_subprocess=True)
driver.get("https://www.google.com")
# no manual paths

2. Force it to match your Chrome version

if auto-detection fails:

import undetected_chromedriver as uc

driver = uc.Chrome(version_main=142, use_subprocess=True)
driver.get("https://www.google.com")

3. Update Chrome to 143

go to chrome://settings/help and let Chrome update itself. Sometimes the simplest solution is the best one.

4. Nuclear option - fresh install

pip uninstall undetected-chromedriver
pip cache purge  # clear cached versions
pip install undetected-chromedriver --no-cache-dir

Pro Tips from the Trenches

the use_subprocess=True is crucial - without it, Chrome tends to close immediately because of how the process management works. Always include it.

dont mess with manual paths unless you absolutely have to:

# error
driver = uc.Chrome(driver_executable_path="/chromedriver")

# do this instead
driver = uc.Chrome(use_subprocess=True)

if Chrome keeps closing instantly, try these options:

import undetected_chromedriver as uc

options = uc.ChromeOptions()
options.add_argument('--no-sandbox')
options.add_argument('--disable-dev-shm-usage')
options.add_argument('--disable-blink-features=AutomationControlled')

driver = uc.Chrome(options=options, use_subprocess=True)

check your Chrome installation path - sometimes undetected_chromedriver cant find Chrome if its installed in a no-standard location:

import undetected_chromedriver as uc

# for windows with custom location
options = uc.ChromeOptions()
options.binary_location = r"C:\Program Files\Google\Chrome\Application\chrome.exe"

driver = uc.Chrome(options=options, use_subprocess=True)

Why This Happens

chrome auto-updates in the background like an overachiever, but ChromeDriver releases lag behind by a few days/weeks. the undetected_chromedriver library tries to grab the latest ChromeDriver, which sometimes jumps ahead of your actual Chrome version.

Related Issues

Check out these similar discussions:

• #1632 - version mismatch fixes
• #1954 - chrome closing immediately

My Setup (for reference)

when I fixed this issue, here's what worked for me:

import undetected_chromedriver as uc
import time

options = uc.ChromeOptions()
options.add_argument('--start-maximized')

driver = uc.Chrome(options=options, use_subprocess=True, version_main=142)

try:
    driver.get("https://www.google.com")
    time.sleep(5)  # give it a moment to load
    print("Success! Chrome is running.")
except Exception as e:
    print(f"Error: {e}")
finally:
    # driver.quit()
    pass

let me know which solution worked for you! Would love to hear if you found a different fix too 👍

System: Windows 10 
Python: 3.11  
undetected-chromedriver: 3.5.5

I was added use_subprocess=True
than it's worked！Thank you so much ！

[19uni94]

@zektrace Sorry for the late reply! Thanks for explaining so clearly. The problem is fixed now.

[pips4life]

My setup:
System: Windows 11
Python: 3.14.3
undetected_chromedriver: 3.5.5

I tried just adding the use_subprocess=True, but for me that didn't resolve the incompatible version problem.

I still saw:
This version of ChromeDriver only supports Chrome version 146
Current browser version is 145.0.7632.117

For sure, the first approach should be to just update your Chrome Browser version to the latest. ("..." -> Help -> About Google Chrome. Restart if it updates). If you're lucky, it will update to the next major version number, which presumably will match the ChromeDriver version. (Previously, zektrace explained that ChromeDriver often updates to a new major version earlier (by a few days or longer) than the Chrome Browser updates).

I was forced to also add the "version_main=145" to match my current installed Chrome Browser. However, it sucks to use a hard-coded number that won't stay current, so I wrote a simple function to extract the (integer) 145, then include it as an option:

import re
import undetected_chromedriver as uc
from webdriver_manager.chrome import ChromeDriverManager

def get_chrome_version_main():
    """Get the main version of the installed Chrome browser."""
    try:
        driver_path = ChromeDriverManager().install()
        #print("driver_path=",driver_path)
        version = re.search(r"(\d+)\.", driver_path)
        if version:
            return int(version.group(1))  # Return the main version (e.g., integer 145)
    except Exception as e:
        print(f"Error getting Chrome version: {e}")
        return None

def setup_driver():
    # Get the main version of Chrome
    version_main_value = get_chrome_version_main()
    if not version_main_value:
        raise Exception("Could not determine Chrome version.")

    # Set up Chrome options
    options = uc.ChromeOptions()
    options.headless = False
    options.add_argument('--blink-settings=imagesEnabled=false')
    options.add_experimental_option(
        "prefs", {"profile.managed_default_content_settings.images": 2}
    )
    return uc.Chrome(options=options, version_main=version_main_value , use_subprocess=True)

I am only a python novice, but this works for me. Comments/improvements welcome.