我尝试在远程服务器（Ubuntu 22.04）中进行一个简单的selenium测试，没有显示模式。Chrome浏览器版本为120.0.6099.129，Chrome驱动程序版本为120.0.6099.109。结果是selenium无法找到任何元素。错误消息是：

Traceback (most recent call last):

字符串
文件“/home/jndash/repos/myseleniumproject/main.py“，line 37，in username_locator = WebDriverWait（driver，100）.until（EC.presence_of_element_located（（By.ID，'fname'）文件“/home/jndash/repos/myseleniumproject/python-selenium-venv/lib/python3.10/site-packages/selenium/webdriver/support/wait.py”，line 105，in until raise TimeoutException（message，screen，stacktrace）selenium.common.exceptions.TimeoutException
为了获取元素，我试图等待直到元素可见，但随后我得到超时错误。我目前使用的脚本是这样的：

import time
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
from selenium import webdriver
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import os
import logging

log_path = './log'
logger = logging.getLogger('selenium')
logger.setLevel(logging.DEBUG)
handler = logging.FileHandler(log_path)
logger.addHandler(handler)
logging.getLogger('selenium.webdriver.common').setLevel(logging.DEBUG)
logger.debug("this is detailed debug information:")

open(log_path, 'r')

chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument("--headless=new")
driver = webdriver.Chrome(options=chrome_options)

# Go to webpage
driver.get("https://practicetestautomation.com/practice-test-login/")

#Type username student into username field
try:
    username_locator = WebDriverWait(driver,100).until(EC.presence_of_element_located((By.ID, 'username')))
finally:
    username_locator.send_keys('student')
print("username text field got")
# Type password Password12 into Password field
password_locator = driver.find_element(By.NAME, "password")
password_locator.send_keys('Password123')

# Push submit button
button = driver.find_element(By.XPATH, "//button[@class='btn']")
button.click()

型
我从执行中得到的日志如下：

this is detailed debug information: Selenium Manager binary found at: /home/japy/repos/myseleniumproject/python-selenium-venv/lib/python3.10/site-packages/selenium/webdriver/common/linux/selenium-manager Executing process: /home/japy/repos/myseleniumproject/python-selenium-venv/lib/python3.10/site-packages/selenium/webdriver/common/linux/selenium-manager --browser chrome --debug --output json chromedriver not found in PATH chrome detected at /usr/bin/google-chrome Running command: /usr/bin/google-chrome --version Output: "Google Chrome 120.0.6099.129 " Detected browser: chrome 120.0.6099.129 Required driver: chromedriver 120.0.6099.109 chromedriver 120.0.6099.109 already in the cache Driver path: /home/user/.cache/selenium/chromedriver/linux64/120.0.6099.109/chromedriver Browser path: /usr/bin/google-chrome Using driver at: /home/user/.cache/selenium/chromedriver/linux64/120.0.6099.109/chromedriver Started executable: /home/user/.cache/selenium/chromedriver/linux64/120.0.6099.109/chromedriver in a child process with pid: 3530206 using 0 to output -3 POST http://localhost:47287/session {"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "pageLoadStrategy": "normal", "browserVersion": null, "goog:chromeOptions": {"extensions": [], "binary": "/usr/bin/google-chrome", "args": ["--headless=new", "i", "disable-gpu", "window-size=1200,1100"]}}}} Remote response: status=200 | data={"value":{"capabilities":{"acceptInsecureCerts":false,"browserName":"chrome","browserVersion":"120.0.6099.129","chrome":{"chromedriverVersion":"120.0.6099.109 (3419140ab665596f21b385ce136419fde0924272-refs/branch-heads/6099@{#1483})","userDataDir":"/tmp/.org.chromium.Chromium.5IAYJP"},"fedcm:accounts":true,"goog:chromeOptions":{"debuggerAddress":"localhost:45055"},"networkConnectionEnabled":false,"pageLoadStrategy":"normal","platformName":"linux","proxy":{},"setWindowRect":true,"strictFileInteractability":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000},"unhandledPromptBehavior":"dismiss and notify","webauthn:extension:credBlob":true,"webauthn:extension:largeBlob":true,"webauthn:extension:minPinLength":true,"webauthn:extension:prf":true,"webauthn:virtualAuthenticators":true},"sessionId":"428b77b50f61a5a83c4ff1ecc6d7371b"}} | headers=HTTPHeaderDict({'Content-Length': '850', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'}) Finished Request POST http://localhost:47287/session/428b77b50f61a5a83c4ff1ecc6d7371b/url {"url": "https://www.practicetestautomation.com/practice-test-login/"} Remote response: status=200 | data={"value":null} | headers=HTTPHeaderDict({'Content-Length': '14', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'}) Finished Request GET http://localhost:47287/session/428b77b50f61a5a83c4ff1ecc6d7371b/url {} Remote response: status=200 | data={"value":"https://www.practicetestautomation.com/practice-test-login/"} | headers=HTTPHeaderDict({'Content-Length': '71', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'}) Finished Request POST http://localhost:47287/session/428b77b50f61a5a83c4ff1ecc6d7371b/element {"using": "css selector", "value": "[id="username"]"} Remote response: status=404 | data={"value":{"error":"no such element","message":"no such element: Unable to locate element: {"method":"css selector","selector":"[id="username"]"}\n (Session info: chrome=120.0.6099.129)","stacktrace":"#0 0x5579fed4ef83 \u003Cunknown>\n#1 0x5579fea07cf7 \u003Cunknown>\n#2 0x5579fea5799e \u003Cunknown>\n#3 0x5579fea57aa1 \u003Cunknown>\n#4 0x5579feaa2d64 \u003Cunknown>\n#5 0x5579fea810dd \u003Cunknown>\n#6 0x5579feaa0006 \u003Cunknown>\n#7 0x5579fea80e53 \u003Cunknown>\n#8 0x5579fea48dd4 \u003Cunknown>\n#9 0x5579fea4a1de \u003Cunknown>\n#10 0x5579fed13531 \u003Cunknown>\n#11 0x5579fed17455 \u003Cunknown>\n#12 0x5579fecfff55 \u003Cunknown>\n#13 0x5579fed180ef \u003Cunknown>\n#14 0x5579fece399f \u003Cunknown>\n#15 0x5579fed3c008 \u003Cunknown>\n#16 0x5579fed3c1d7 \u003Cunknown>\n#17 0x5579fed4e124 \u003Cunknown>\n#18 0x7f1c50e94b43 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '869', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'}) Finished Request
然后，最后一个块被一遍又一遍地重复。