执行默认的雪球的配置文件，报错

[mengbin890815]

执行默认的雪球的配置文件，报错

2021-01-07 14:19:54 INFO [AppCrawler$.203.parseParams] Find Conf D:\2_work-tools\appcrawler\appcrawler-1.7.1\conf\xueqiu.yml
Exception in thread "main" com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of com.testerhome.appcrawler.Step (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('//*[@resource-id='action_back']')
at [Source: (StringReader); line: 59, column: 3] (through reference chain: com.testerhome.appcrawler.CrawlerConf["backButton"]->com.fasterxml.jackson.module.scala.deser.BuilderWrapper[0])
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63)
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1342)
at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1031)
at com.fasterxml.jackson.databind.deser.ValueInstantiator._createFromStringFallbacks(ValueInstantiator.java:371)
at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromString(StdValueInstantiator.java:323)
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1366)
at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:171)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:161)
at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:286)
at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:245)
at com.fasterxml.jackson.module.scala.deser.SeqDeserializer.deserialize(SeqDeserializerModule.scala:78)
at com.fasterxml.jackson.module.scala.deser.SeqDeserializer.deserialize(SeqDeserializerModule.scala:61)
at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:127)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:288)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:151)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4001)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2992)
at com.testerhome.appcrawler.TData$.fromYaml(TData.scala:63)
at com.testerhome.appcrawler.CrawlerConf.load(CrawlerConf.scala:195)
at com.testerhome.appcrawler.AppCrawler$.parseParams(AppCrawler.scala:204)
at com.testerhome.appcrawler.AppCrawler$.main(AppCrawler.scala:91)
at com.testerhome.appcrawler.AppCrawler.main(AppCrawler.scala)

[seveniruby]

应该是要有xpath前缀。step的定义已经修改