Jmeter打开jmx文件报Error，求教是什么原因？（附log）

roger83

2007/05/14 11:10:28 WARN  - jmeter.save.SaveService: Could not set up alias SubscriberSampler java.lang.NoClassDefFoundError: javax/jms/MessageListener
2007/05/14 11:10:28 WARN  - jmeter.save.SaveService: Could not set up alias MailerVisualizer java.lang.NoClassDefFoundError: javax/mail/MessagingException
2007/05/14 11:10:28 WARN  - jmeter.save.SaveService: Could not set up alias WebServiceSampler java.lang.NoClassDefFoundError: javax/mail/MessagingException
2007/05/14 11:10:28 INFO  - jmeter.save.SaveService: Using SaveService properties version 1.8
2007/05/14 11:10:28 INFO  - jmeter.save.SaveService: All converter versions present and correct
2007/05/14 11:10:28 WARN  - jmeter.gui.action.Load: Could not convert file com.thoughtworks.xstream.converters.ConversionException: WebServiceSampler : WebServiceSampler
---- Debugging information ----
required-type       : org.apache.jorphan.collections.ListedHashTree
cause-message       : WebServiceSampler : WebServiceSampler
class               : org.apache.jmeter.save.ScriptWrapper
message             : WebServiceSampler : WebServiceSampler
line number         : 34
path                : /jmeterTestPlan/hashTree/hashTree/hashTree/hashTree/WebServiceSampler
cause-exception     : com.thoughtworks.xstream.alias.CannotResolveClassException