nutch我对和还不熟悉solr。Nutch-1.12和solr-5.2.1成功集成，但 nutnutch-2.3和solr-4.1.0无法集成。
WARNINGS [ivy:resolve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:resolve] :: UNRESOLVED DEPENDENCIES :: [ivy:resolve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:resolve] :: org.apache.avro#avro;1.7.6: configuration not found in org.apache.avro#avro;1.7.6: 'compile'. It was required from org.apache.gora#gora-core;0.6.1 compile [ivy:resolve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:resolve] [ivy:resolve] [ivy:resolve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS BUILD FAILED D:\apachenutch\build.xml:468: impossible to resolve dependency
请帮我解决安装问题。