--user-data-dir option

I tried to open Chromedriver with --user-data-dir option but following error comes out. I've tried this in many ways for 1 month and still don't have clue. Please help me!
Error message is:
Traceback (most recent call last): File "C:\Users\owner\Desktop\MouseWithoutBorders\AutoCheckin.py", line 15, in driver = webdriver.Chrome(executable_path=r"C:\Users\owner\Desktop\MouseWithoutBorders\chromedriver.exe", chrome_options=opts) File "C:\Users\owner\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 75, in init desired_capabilities=desired_capabilities) File "C:\Users\owner\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 156, in init self.start_session(capabilities, browser_profile) File "C:\Users\owner\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 251, in start_session response = self.execute(Command.NEW_SESSION, parameters) File "C:\Users\owner\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 320, in execute self.error_handler.check_response(response) File "C:\Users\owner\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: unknown error: Could not remove old devtools port file. Perhaps the given user-data-dir at C:\Users\owner\AppData\Local\Google\Chrome\ is still attached to a running Chrome or Chromium process. (Driver info: chromedriver=2.41.578737 (49da6702b16031c40d63e5618de03a32ff6c197e),platform=Windows NT 10.0.17738 >x86_64)
and My python test code is:

import time
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.chrome.options import Options
from myidez import ID, PW

opts = webdriver.ChromeOptions()
opts.add_argument('--start-maximized')
opts.add_argument('--headless')
opts.add_argument('--no-sandbox')
opts.add_argument('--disable-dev-shm-usage')
opts.add_argument('--disable-gpu')
opts.add_argument("--user-data-dir= C:\\Users\\owner\\AppData\\Local\\Google\\Chrome\\User Data")
driver = webdriver.Chrome(executable_path=r"./chromedriver.exe", chrome_options=opts)

I have found this Error comes from chromium code references: https://chromium.googlesource.com/chromium/src/+/master/chrome/test/chromedriver/chrome_launcher.cchttps://peter.sh/experiments/chromium-command-line-switches/

Status RemoveOldDevToolsActivePortFile(const base::FilePath& user_data_dir) {
  base::FilePath port_filepath = user_data_dir.Append(kDevToolsActivePort);
  // Note that calling DeleteFile on a path that doesn't exist returns True.
  if (base::DeleteFile(port_filepath, false)) {
    return Status(kOk);
  }
  return Status(
      kUnknownError,
      std::string("Could not remove old devtools port file. Perhaps "
                  "the given user-data-dir at ") +
          user_data_dir.AsUTF8Unsafe() +
          std::string(" is still attached to a running Chrome or Chromium "
                      "process."));