只是为了表明我已经尽了应有的努力,对于以下问题,我已经尝试了建议的答案,或者至少仔细阅读并尝试理解它们:
Selenium:WebDriverException:Chrome 无法启动:由于 google-chrome 不再运行而崩溃,因此 ChromeDriver 假设 Chrome 已崩溃
从 chrome 位置 C:\..\Chrome\Application\chrome.exe 启动的进程不再运行,因此 ChromeDriver 假设 Chrome 已崩溃
通过docker使用Selenium python库,Chrome报错无法启动:异常退出
使用 Selenium 时 Chrome 崩溃(没有发布答案,但我仍然查看过)
如何修复 Linux 中的“usr/bin/google-chrome 不再运行,因此 ChromeDriver 假设 Chrome 已崩溃”错误? - 对于这个,我用“/etc/alternatives/google-chrome”替换了“/usr/bin/google-chrome”,但仍然不起作用。
从 chrome 位置 /usr/bin/google-chrome 启动的进程不再运行,因此 ChromeDriver 假设 Chrome 因 Selenium 崩溃了
python linux selenium:无法访问 chrome
未知错误:Chrome 无法启动:崩溃(selenium,无头模式)
python selenium: WebDriverException: 消息: chrome 无法访问
WebDriverException:消息:未知错误:Chrome 无法启动:在 VPS 上通过 Python 使用 ChromeDriver Chrome 和 Selenium 异常退出
我已经构建了一个提交正常的表单,但是当我在控制器中查看它们时,子表单值在接收端都以null结尾.
这是我的UserProfileType表格,基于User课程.那么具体的,我们正在寻找在子窗体的subscriptionTier1,subscriptionTier1以及subscriptionTier1:
class UserProfileType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('firstName', TextType::class)
->add('lastName', TextType::class)
->add('email', EmailType::class)
// etc... I'll keep out the unimportant fields
// here are the subforms whose values show up as null on the back end
->add('subscriptionTier1', UserSubscriptionTierType::class, [
'required' => false,
'mapped' => false
])
->add('subscriptionTier2', UserSubscriptionTierType::class, [
'required' => false,
'mapped' => false
])
->add('subscriptionTier3', UserSubscriptionTierType::class, [
'required' => false, …Run Code Online (Sandbox Code Playgroud) 我的自动装配不适用于基本文件实体侦听器。
我有一个File实体类,它使用批注指定侦听器,例如:
/**
@Orm\Entity(repositoryClass="root\CoreBundle\Repository\FileRepository")
@Orm\EntityListeners({"root\CoreBundle\EventListener\Entity\FileEntityListener"})
@Orm\Table(
etc...
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FileEntityListener类的开始如下:
class FileEntityListener
{
private $encoderFactory;
private $logger;
public function __construct(FilesystemMap $filesystemMap, LoggerInterface $logger)
{
$this->setFilesystemMap($filesystemMap);
$this->logger = $logger;
}
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当侦听器启动时,没有将依赖项注入侦听器的构造函数中,并且我收到该构造函数的错误,说:
Type error: Too few arguments to function Epcvip\CoreBundle\EventListener\Entity\FileEntityListener::__construct(), 0 passed in /var/www/html/accounting/vendor/doctrine/doctrine-bundle/Mapping/ContainerAwareEntityListenerResolver.php on line 83 and exactly 2 expected
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该捆绑包是自动接线的,但是没有注入依赖项。
有人知道为什么这行不通吗?也许我缺少一个简单的配置步骤?
我只想说,我已经在Pip is alreadyinstalled 上看到了这个问题:但是我没有得到名为 lxml 的模块,并且看到了关于将其安装为非 root 的一个答案,这就是我所做的,但这没有帮助我。
我刚刚安装了lxml,安装方式如下:
[ec2-user@ip-xxx-xx-xx-xxx newslookup]$ pip install --user lxml
Collecting lxml
Using cached https://files.pythonhosted.org/packages/89/51/a8a6cdb8a084d32dbc9bda94623dc35310ae2002be57de8702a1703c0026/lxml-4.3.3-cp27-cp27mu-manylinux1_x86_64.whl
Installing collected packages: lxml
Successfully installed lxml-4.3.3
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所以安装一切都很顺利。
这是 python 脚本:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from lxml import html
import requests
from time import sleep
import json
import argparse
from random import randint
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这是我运行脚本时的输出:
[ec2-user@ip-xxx-xx-xx-xxx newslookup]$ python3 nasdaq_scrape_sec.py aapl
Traceback (most recent call last):
File "nasdaq_scrape_sec.py", line 4, in <module>
from lxml import html
ModuleNotFoundError: …Run Code Online (Sandbox Code Playgroud) 我正在尝试使用请求模块,这是我的安装方式:
[ec2-user@ip-xxx-xx-xx-xxx newslookup]$ pipenv install requests
Creating a virtualenv for this project...
Pipfile: /var/www/html/newslookup/Pipfile
Using /usr/bin/python2 (2.7.14) to create virtualenv...
? Creating virtual environment...Already using interpreter /usr/bin/python2
No LICENSE.txt / LICENSE found in source
New python executable in /home/ec2-user/.local/share/virtualenvs/newslookup-5acwuw4D/bin/python2
Also creating executable in /home/ec2-user/.local/share/virtualenvs/newslookup-5acwuw4D/bin/python
Installing setuptools, pip, wheel...
done.
? Successfully created virtual environment!
Virtualenv location: /home/ec2-user/.local/share/virtualenvs/newslookup-5acwuw4D
Creating a Pipfile for this project...
Installing requests...
Adding requests to Pipfile's [packages]...
? Installation Succeeded
Pipfile.lock not found, creating...
Locking [dev-packages] dependencies... …Run Code Online (Sandbox Code Playgroud) I'm trying to set up MySQL on an Amazon Linux instance, I've tried everything (and with the -y option as well):
$ sudo yum install mysql-server
$ sudo yum install mysql56-server
$ sudo yum install mysql-community-server
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I keep getting the "No package msqql-server available", "No package msyql56-server available", etc...
I've also ran yum clean all, yum update all, etc...
I'm assuming I have to install the RPM, but I don't know what version to install and while there is documentation …
我已经安装了PHP7,并且想安装php-xml,但是它不允许我这样做,因为我在系统上仍然有冲突的PHP 5.4痕迹,无法摆脱。
这是我尝试运行“ yum install php-xml”时的外观:
$ sudo yum install php-xml
Loaded plugins: fastestmirror, langpacks, replace
Loading mirror speeds from cached hostfile
* base: mirror.fileplanet.com
* epel: mirror.sjc02.svwh.net
* extras: mirror.fileplanet.com
* ius: mirrors.kernel.org
* remi-safe: mirrors.mediatemple.net
* rpmfusion-free-updates: mirror.math.princeton.edu
* rpmfusion-nonfree-updates: mirror.math.princeton.edu
* updates: mirror.fileplanet.com
* webtatic: us-east.repo.webtatic.com
Resolving Dependencies
--> Running transaction check
---> Package php-xml.x86_64 0:5.4.16-42.el7 will be installed
--> Processing Dependency: php-common(x86-64) = 5.4.16-42.el7 for package: php-xml-5.4.16-42.el7.x86_64
--> Running transaction check
---> Package php-common.x86_64 0:5.4.16-42.el7 will … 我找不到 DQL 的示例,这是半伪代码的样子:
Bring back invoices
- Where company id = 5
AND
(
->where('DATE(i.startPeriod) BETWEEN :startDate AND :endDate')
->orWhere('DATE(i.endPeriod) BETWEEN :startDate AND :endDate')
->orWhere(':startDate BETWEEN DATE(i.startPeriod) and DATE(i.endPeriod)')
->orWhere(':endDate BETWEEN DATE(i.startPeriod) and DATE(i.endPeriod)')
)
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所以你有四个 OR 嵌套在一个封装 AND 中。
有谁知道如何用 Doctrine DQL 做到这一点?将一堆 OR 嵌套在一个巨大的 AND 中?
在使用 Symfony 4.1 进行练习时,我注意到捆绑页面上的说法:( https://symfony.com/doc/current/bundles.html )
在 4.0 之前的 Symfony 版本中,建议使用捆绑包来组织您自己的应用程序代码。不再建议这样做,捆绑包只能用于在多个应用程序之间共享代码和功能。
这是为什么?用什么来替代捆绑包?只需在一个“App”包中创建目录?
那么仅仅一个子文件夹就可以代替一个包吗?