Caused by: java.lang.NoClassDefFoundError: com/tansuosoft/discoverx/common/Config

1、错误描述

Caused by: java.lang.NoClassDefFoundError: com/tansuosoft/discoverx/common/Config
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2957)
	at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1210)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1690)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
	at java.lang.Class.getDeclaredFields0(Native Method)
	at java.lang.Class.privateGetDeclaredFields(Class.java:2436)
	at java.lang.Class.getDeclaredFields(Class.java:1806)
	at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)
	at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:270)
	at org.apache.catalina.startup.WebAnnotationSet.loadApplicationFilterAnnotations(WebAnnotationSet.java:109)
	at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:64)
	at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:403)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:879)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:374)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5378)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	... 6 more
Caused by: java.lang.ClassNotFoundException: com.tansuosoft.discoverx.common.Config
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
	... 27 more

2、错误原因

      查看错误信息，发现是类缺失异常

3、解决办法