今天把一个新的工程导入Ecilpse运行的时候，启动报错。代码如下：
2018-04-20 10:20:46,896 localhost-startStop-1 ERROR appender Console has no parameter that matches element PatternLayout
2018-04-20 10:21:31,027 localhost-startStop-1 ERROR Unable to invoke factory method in class class org.apache.logging.log4j.flume.appender.FlumeAppender for element Flume. java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:132)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:152)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:122)
at org.apache.logging.log4j.jcl.LogAdapter.getContext(LogAdapter.java:39)
at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:46)
at org.apache.logging.log4j.jcl.LogFactoryImpl.getInstance(LogFactoryImpl.java:40)
at org.apache.logging.log4j.jcl.LogFactoryImpl.getInstance(LogFactoryImpl.java:55)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:655)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:302)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4745)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5207)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoSuchMethodError: org.apache.logging.log4j.core.appender.AbstractManager.<init>(Ljava/lang/String;)V
at org.apache.logging.log4j.flume.appender.AbstractFlumeManager.<init>(AbstractFlumeManager.java:28)
at org.apache.logging.log4j.flume.appender.FlumeEmbeddedManager.<init>(FlumeEmbeddedManager.java:57)
at org.apache.logging.log4j.flume.appender.FlumeEmbeddedManager$FlumeManagerFactory.createManager(FlumeEmbeddedManager.java:174)
at org.apache.logging.log4j.flume.appender.FlumeEmbeddedManager$FlumeManagerFactory.createManager(FlumeEmbeddedManager.java:157)
at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:112)
at org.apache.logging.log4j.flume.appender.FlumeEmbeddedManager.getManager(FlumeEmbeddedManager.java:108)
at org.apache.logging.log4j.flume.appender.FlumeAppender.createAppender(FlumeAppender.java:243)
... 35 more
2018-04-20 10:21:31,054 localhost-startStop-1 ERROR Null object returned for Flume in appenders.
2018-04-20 10:21:31,364 localhost-startStop-1 ERROR No appender named FlumeAppender was configured原因是log4j配置错误，在可以运行的工程中拷贝一个新的log4j过来(要记得改工程的名字)就ok啦!