英文:
Selenium - Exception in thread "main" java.lang.NoClassDefFoundError: org/reactivestreams/Publisher
问题
我正在Eclipse中为Selenium创建一个Maven项目。不知道为什么它抛出了log4j错误（在升级Eclipse之前以前没有出现过）。错误信息如下 -
我已经在src/main/resources下添加了"log4j.properties"文件，内容如下 -
log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
同时，在POM.xml中添加了以下依赖 -
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.26</version>
</dependency>
使用的工具和版本 -
Eclipse - 版本：2020-06（4.16.0）
Maven artifact id - maven-archetype-quickstart - v1.4
Selenium版本 - 3.141.59
英文:
I am creating a Maven project for Selenium in eclipse. Don't know why it threw log4j error (It didn't used to earlier, before upgrading Eclipse). The error is as follows -
I have already added "log4j.properties" file under src/main/resources as -
log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
Also added dependency as following in POM.xml -
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.26</version>
</dependency>
Artifacts used -
Eclipse - Version: 2020-06 (4.16.0)
Maven artifact id - maven-archetype-quickstart - v1.4
Selenium version - 3.141.59
答案1
得分: 2
错误与 log4j 无关。错误是关于 org.reactivestreams.Publisher 的。添加以下 Maven 依赖以获取它：
<!-- https://mvnrepository.com/artifact/org.reactivestreams/reactive-streams -->
<dependency>
<groupId>org.reactivestreams</groupId>
<artifactId>reactive-streams</artifactId>
<version>1.0.3</version>
</dependency>
在添加依赖后，确保更新项目。
英文:
The error is not related to log4j. The error is for org.reactivestreams.Publisher. Add the following Maven dependency to get it:
<!-- https://mvnrepository.com/artifact/org.reactivestreams/reactive-streams -->
<dependency>
<groupId>org.reactivestreams</groupId>
<artifactId>reactive-streams</artifactId>
<version>1.0.3</version>
</dependency>
Make sure to update the project after adding the dependency.
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