$ ./nutch crawl urls -dir crawl -depth 3 -topN 5
 
cygpath: can't convert empty path
solrUrl is not set, indexing will be skipped...
crawl started in: crawl
rootUrlDir = urls
threads = 10
depth = 3
solrUrl=null
topN = 5
Injector: starting at 2013-09-04 10:31:36
Injector: crawlDb: crawl/crawldb
Injector: urlDir: urls
Injector: Converting injected urls to crawl db entries.
Exception in thread "main" java.io.IOException: Failed to set permissions of path: \tmp\hadoop-Administrator\mapred\staging\Administrator2019975669\.staging to 0700
        at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:691)
        at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:664)
        at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:514)
        at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:349)
        at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:193)
        at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:126)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:942)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
        at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:910)
        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1353)
        at org.apache.nutch.crawl.Injector.inject(Injector.java:281)
        at org.apache.nutch.crawl.Crawl.run(Crawl.java:132)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
        at org.apache.nutch.crawl.Crawl.main(Crawl.java:55)

  private static void checkReturnValue(boolean rv, File p, 
                                       FsPermission permission
                                       ) throws IOException {
    if (!rv) {
 
      throw new IOException("Failed to set permissions of path: " + p + 
                            " to " + 
                            String.format("%04o", permission.toShort()));
 
    }
  }

  private static void checkReturnValue(boolean rv, File p, 
                                       FsPermission permission
                                       ) throws IOException {
    if (!rv) {
      /**
      throw new IOException("Failed to set permissions of path: " + p + 
                            " to " + 
                            String.format("%04o", permission.toShort()));
	 */
	  LOG.warn("Failed to set permissions of path: " + p + 
                            " to " + 
                            String.format("%04o", permission.toShort()));
    }
  }

    <!--
    <exec executable="autoreconf" dir="${native.src.dir}" searchpath="yes" 
          failonerror="yes">
       <arg value="-if"/>
    </exec>
	-->

nutch crawl urls -dir crawl -depth 3 -topN 10