错误:GDK_BACKEND与可用的显示不匹配；使用Crontab运行Selenium [英] Error: GDK_BACKEND does not match available displays; Running Selenium using Crontab

问题描述

我正在尝试使用cron运行硒.

I am trying to run selenium using cron.

import os
from selenium import webdriver
from selenium.webdriver.firefox.options import Options
from pyvirtualdisplay import Display
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

firefox_capabilities = DesiredCapabilities.FIREFOX
firefox_capabilities['marionette'] = True


firefox_capabilities['handleAlerts'] = True
firefox_capabilities['acceptSslCerts'] = True
firefox_capabilities['acceptInsecureCerts'] = True

binary = webdriver.firefox.firefox_binary.FirefoxBinary("/usr/bin/firefox")

now = datetime.datetime.now()
print "* Time of RUN : ",now

display = Display(visible=0, size=(1024, 768))
# display.start()
browser = webdriver.Firefox(firefox_binary=binary,executable_path=os.getcwd()+'/geckodriver')
browser.get('http://www.google.com')
print browser.title
browser.quit()

# display.stop()

以下是geckodriver.log

中显示的错误

Following is the error displayed in geckodriver.log

1525859641163   geckodriver INFO    geckodriver 0.20.1
1525859641167   geckodriver INFO    Listening on 127.0.0.1:34837
1525859642167   mozrunner::runner   INFO    Running command: "/usr/bin/firefox" "-marionette" "-profile" "/tmp/rust_mozprofile.1xUlJhxoO4Ar"
Error: GDK_BACKEND does not match available displays

我尝试过的事情:

1. 尝试了无显示(即虚拟显示)即无头硒的运行中硒
2. 在调用webdriver.firefox()时尝试二进制参数
3. 在webdriver.firefox()中尝试了geckodriver excutable(linux)
4. 在cron cmd中使用了export Dispaly=:0;

1. tried running selenium without display (pyvirtualdisplay) i.e headless selenium
2. tried binary parameter while invoking webdriver.firefox()
3. tried geckodriver excutable(linux) in webdriver.firefox()
4. used export Dispaly=:0; in the cron cmd

推荐答案

1. 更新最新的geckodriver

1. update latest geckodriver

下载最新的firefox tarball并按照此步骤进行操作

download latest firefox tarball and follow this step

https://tecadmin.net/install-firefox-on-linux/

3.安装正式的Firefox Beta PPA

3.Install the official Firefox Beta PPA

  $ sudo apt-add-repository ppa:mozillateam/firefox-next

4.运行apt-get update

4.Run apt-get update

 $sudo apt-get update

1. 安装firefox和xvfb(X Windows虚拟帧缓冲区)软件包

1. Install firefox and xvfb (the X windows virtual framebuffer) packages

$ sudo apt-get install firefox xvfb

在后台运行Xvfb并指定显示编号(在我的示例中为10)

Run Xvfb in the background and specify a display number (10 in my example)

$ Xvfb :10 -ac &

将DISPLAY变量设置为您选择的数字

Set the DISPLAY variable to the number you chose

$ export DISPLAY=:10

测试代码 #！/usr/bin/env python 从硒导入webdriver 浏览器= webdriver.Firefox() browser.get(' http://iAisystem.com/') browser.quit()

test the code #!/usr/bin/env python from selenium import webdriver browser = webdriver.Firefox() browser.get('http://iAisystem.com/') browser.quit()

firefox如果您以tar下载，则有助于避免下载依赖文件

firefox if you download as tar it helps to avoid download dependency files

    wget http://ftp.mozilla.org/pub/firefox/releases/61.0/linux-x86_64/en-US/firefox-61.0.tar.bz2

请注意，您的Firefox代码应具有无头选项，以避免显示窗口.

Note your firefox code should have headless option inorder to avoid displaying window.

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