我是jmeter的新手（上周才开始阅读到这篇文章）。我已经得到了一些由离开公司的某个人编写的测试，但是我无法在jmeter中打开这些测试。根据.jmx文件，
这是写在jmeter 2.9，所以我安装了2.9。我得到了标准的插件，但它只是没有加载，请看到下面的错误消息，让我知道，如果你有任何想法。
谢谢你！
2015/03/02 13：35：23错误- jmeter.保存.保存服务：转换错误。转换异常：JSONPathExtractor. JSONPathExtractor的主要功能是：com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor

---- Debugging information ----
message             : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor
class               : org.apache.jorphan.collections.ListedHashTree
required-type       : org.apache.jorphan.collections.ListedHashTree
converter-type      : org.apache.jmeter.save.converters.HashTreeConverter
path                : /jmeterTestPlan/hashTree/hashTree/hashTree/hashTree[2]/hashTree[3]/com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor
line number         : 113
------------------------------- : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor

----调试信息----消息：原因-异常：无法解析类异常原因消息：jsonpath提取器类：列表哈希树所需类型：列表哈希树转换器类型：转换器路径：/jmeterTestPlan/hashTree/hashTree/hashTree/hashTree/hashTree[2]/hashTree[3]/jsonutils/jsonpath提取器/jsonpath提取器行号：113 -----------------留言：JSONPathExtractor. JSONPathExtractor的主要功能是：com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor

---- Debugging information ----
message             : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor
class               : org.apache.jorphan.collections.ListedHashTree
required-type       : org.apache.jorphan.collections.ListedHashTree
converter-type      : org.apache.jmeter.save.converters.HashTreeConverter
path                : /jmeterTestPlan/hashTree/hashTree/hashTree/hashTree[2]/hashTree[3]/com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor
line number         : 113
-------------------------------
cause-exception     : com.thoughtworks.xstream.converters.ConversionException
cause-message       : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor : com.atlantbh.jmeter.plugins.jsonutils.jsonpathextractor.JSONPathExtractor
first-jmeter-class  : org.apache.jmeter.save.converters.HashTreeConverter.unmarshal(HashTreeConverter.java:65)
class               : org.apache.jmeter.save.ScriptWrapper
required-type       : org.apache.jorphan.collections.ListedHashTree
converter-type      : org.apache.jmeter.save.ScriptWrapperConverter
path                : /jmeterTestPlan

/hashTree/hashTree/hashTree/hashTree[2]/hashTree/hashTree[3]/com.插件.jsonutils.路径提取器.路径提取器行号：113版：2.9R1437961型