Hi,
I run org.apache.nutch.searcher.NutchBean to test the searching function.
 I found it only return the total hits but no hits details or summarys.

I check the hadoop.log found this error:

2010-12-11 10:57:47,752 ERROR searcher.NutchBean - Exception occured while
executing search: java.lang.RuntimeException:
java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException:
This AttributeSource does not have the attribute
'org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute'.
java.lang.RuntimeException: java.util.concurrent.ExecutionException:
java.lang.IllegalArgumentException: This AttributeSource does not have the
attribute
'org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute'.
at
org.apache.nutch.searcher.FetchedSegments.getSummary(FetchedSegments.java:297)
at org.apache.nutch.searcher.NutchBean.getSummary(NutchBean.java:350)
at org.apache.nutch.searcher.NutchBean.main(NutchBean.java:415)
Caused by: java.util.concurrent.ExecutionException:
java.lang.IllegalArgumentException: This AttributeSource does not have the
attribute
'org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute'.
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at
org.apache.nutch.searcher.FetchedSegments.getSummary(FetchedSegments.java:292)
... 2 more
Caused by: java.lang.IllegalArgumentException: This AttributeSource does not
have the attribute
'org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute'.
at
org.apache.lucene.util.AttributeSource.getAttribute(AttributeSource.java:277)
at
org.apache.nutch.summary.basic.BasicSummarizer.getTokens(BasicSummarizer.java:362)
at
org.apache.nutch.summary.basic.BasicSummarizer.getSummary(BasicSummarizer.java:134)
at
org.apache.nutch.searcher.FetchedSegments.getSummary(FetchedSegments.java:263)
at
org.apache.nutch.searcher.FetchedSegments$SummaryTask.call(FetchedSegments.java:63)
at
org.apache.nutch.searcher.FetchedSegments$SummaryTask.call(FetchedSegments.java:53)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

How can i fix this?

by bupo.jung

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