I  follow the instruction at wiki, 
http://wiki.apache.org/hadoop/EclipseEnvironment, to setup hadoop environment 
with eclipse. However, when building hdfs and mapreduce project (src both are 
from trunk), it complains the following error. It looks like the mismatch of 
the lib version. For instance, jetty-util-6.1.12.jar exists in build/ivy/lib 
foder, but just the version is not what build tool requests. I search the *.xml 
(such as build.xml and ivy.xml), but there is not such artifact specified. 
Where or How can I fix this problem?

Thanks for help.

Description     Resource        Path    Location        Type
Project 'hadoop-hdfs' is missing required library: 
'build/ivy/lib/Hadoop-Hdfs/common/jetty-util-6.1.14.jar'     hadoop-hdfs        
     Build path      Build Path Problem
Project 'hadoop-hdfs' is missing required library: 
'build/ivy/lib/Hadoop-Hdfs/common/slf4j-api-1.5.8.jar'       hadoop-hdfs        
     Build path      Build Path Problem
Project 'hadoop-mapreduce' is missing required library: 
'build/ivy/lib/Hadoop/common/jackson-core-asl-1.0.1.jar'        
hadoop-mapreduce                Build path      Build Path Problem
Project 'hadoop-mapreduce' is missing required library: 
'build/ivy/lib/Hadoop/common/jackson-mapper-asl-1.0.1.jar'      
hadoop-mapreduce                Build path      Build Path Problem
Project 'hadoop-mapreduce' is missing required library: 
'build/ivy/lib/Hadoop/common/paranamer-1.5.jar' hadoop-mapreduce                
Build path      Build Path Problem
Project 'hadoop-mapreduce' is missing required library: 
'build/ivy/lib/Hadoop/common/slf4j-simple-1.5.8.jar'    hadoop-mapreduce        
        Build path      Build Path Problem
Project 'hadoop-mapreduce' is missing required library: 
'build/ivy/lib/sqoop/common/commons-io-1.4.jar' hadoop-mapreduce                
Build path      Build Path Problem
Project 'hadoop-mapreduce' is missing required source folder: 
'src/contrib/sqoop/src/java'      hadoop-mapreduce                Build path    
  Build Path Problem
Project 'hadoop-mapreduce' is missing required source folder: 
'src/contrib/sqoop/src/test'      hadoop-mapreduce                Build path    
  Build Path Problem
Project 'hadoop-hdfs' is missing required library: 
'build/ivy/lib/Hadoop-Hdfs/common/jetty-6.1.14.jar'  hadoop-hdfs             
Build path      Build Path Problem





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