Remember the example of a project that cannot be started after a Tomcat deployment project

　After a normal deployment, it was discovered that the project could not be started in Tomcat management and found the following error message in the Tomcat log file Localhost.log:

1Java.lang.NoSuchMethodError:org.springframework.core.GenericTypeResolver.resolveTypeArguments(Ljava/lang/class; Ljava/lang/class;) [ljava/lang/Class;2Org.springframework.core.convert.support.GenericConversionService.getRequiredTypeInfo ( genericconversionservice.java:260)3Org.springframework.core.convert.support.GenericConversionService.addConverter (Genericconversionservice.java : 83)4Org.springframework.core.convert.support.DefaultConversionService.addScalarConverters ( defaultconversionservice.java:63)5Org.springframework.core.convert.support.DefaultConversionService.addDefaultConverters ( defaultconversionservice.java:54)6Org.springframework.core.convert.support.defaultconversionservice.<init> (DefaultConversionService.java : 43)7Org.springframework.core.env.abstractpropertyresolver.<init> (abstractpropertyresolver.java:41)8Org.springframework.core.env.propertysourcespropertyresolver.<init> (Propertysourcespropertyresolver.java : 41)9Org.springframework.core.env.abstractenvironment.<init> (abstractenvironment.java:98)TenOrg.springframework.core.env.standardenvironment.<init> (standardenvironment.java:54) OneOrg.springframework.web.context.support.standardservletenvironment.<init> ( Standardservletenvironment.java:44) AOrg.springframework.web.servlet.HttpServletBean.createEnvironment (httpservletbean.java:213) -Org.springframework.web.servlet.HttpServletBean.getEnvironment (httpservletbean.java:203) -Org.springframework.web.servlet.HttpServletBean.init (httpservletbean.java:126) theJavax.servlet.GenericServlet.init (genericservlet.java:212) -Org.apache.catalina.valves.ErrorReportValve.invoke (errorreportvalve.java:102) -Org.apache.catalina.connector.CoyoteAdapter.service (coyoteadapter.java:298) -Org.apache.coyote.http11.Http11Processor.process (http11processor.java:852) +Org.apache.coyote.http11.http11protocol$http11connectionhandler.process (http11protocol.java:588) -Org.apache.tomcat.util.net.jioendpoint$worker.run (jioendpoint.java:489) +Java.lang.Thread.run (Unknown Source)

I later found out that I imported the updated spring package 3.1.2.RELEASE in my new myeclipse, and I was in conflict with the Spring3.0 package I used for my own project, causing the problem to occur.

So later if a project can be deployed and functioning in its own IDE, and deployment to the server does not start, it is likely that there is a conflict between the different versions of the package between the libraries.

Remember the example of a project that cannot be started after a Tomcat deployment project