今天在使用JSP,引入<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>时报错. 报错信息:Failed to load or instantiate TagLibraryValidator class: org.apache.taglibs.standard.tlv.JstlCoreTLV 这是因为standard.jar的原因,在tomcat的lib路径下加入standar…

在部署工程时,没有加入javax.servlet-api.jar(3.0.1) 和 standard.jar(1.1.2)两个jar包导致此问题. 另外,如果原来容器中有javax.servlet-api.jar包,并且你是使用maven管理项目的,只需把scope设置成provided即可…

使用struts的标签库出现Failed to load or instantiate TagExtraInfo class 最近在使用struts标签库的时候,在eclipse开发环境中是正常的,放到tomcat6上面发布,浏览的时候出现Failed to load or instantiate TagExtraInfo class问题. 发现是jsp-api.jar包冲突了造成的,tomcat的lib目录中有此包,和项目的lib目录下面的包冲突了 项目web-inf\lib\jsp-api.…

Failed to load or instantiate: add this code in your xml: xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" xmlns:imagecontrol="http://schemas.android.com/apk/res-auto"…

错误提示: Caused by: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.tuyrk._161_java_socket.project6.dao.UserMapper.findOne 错误原因: 在Mybatis的配置文件中,配置了重名的方法findOne. 解决方法: 将方法名称改成其他名称.Mybatis配置文件不能重名. java.lang…

WARN <init>, HHH000409: Using org.hibernate.id.UUIDHexGenerator which does not generate IETF RFC 4122 compliant UUID values; consider using org.hibernate.id.UUIDGenerator instead ERROR prepareTestInstance, Caught exception while allowing TestExecuti…

报错信息 : Render ProblemFailed to load AppCompat ActionBar with unknown error. Failed to instantiate one or more classes The following classes could not be instantiated: android.support.v7.widget.AppCompatImageView (Open Class, Show Exception, Clear Cac…

在使用spring-test的时候,在启动@Test的方法时,spring-test会去加载spring的配置文件,这个时候如果配置文件没有在 @ContextConfiguration 中写全,就会导致加载到一半失败,然后抛出 java.lang.IllegalStateException: Failed to load ApplicationContext 的异常,进而导致优先加载的各种bean加载失败 异常: [main] WARN org.springframework.web.cont…

这里整理几个空格引起的问题. 版本是elasticsearch-2.3.0 或者elasticsearch-rtf-master Exception in thread "main" SettingsException[Failed to load settings from [elasticsearch.yml]]; nested: ElasticsearchParseException[malformed, expected settings to start with 'obje…

报错:Start: failed to load tracking configuration: TrackingConfigGenerated.xml Start: failed to load tracking configuration: tracking.xmlUnityEngine.Debug:LogError(Object)metaioSDK:Start() (at Assets/metaio/Scripts/metaioSDK.cs:374) Could not read imag…