hdfsreader读失败

在读hdfs集群数据的时候总是提示以下错误，是怎么回事？
`java.lang.RuntimeException: java.lang.NoSuchMethodException: org.apache.hadoop.fs.viewfs.ViewFs.()
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:134) ~[hadoop-common-2.7.2.jar:na]
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2652) ~[hadoop-common-2.7.2.jar:na]
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92) ~[hadoop-common-2.7.2.jar:na]
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687) ~[hadoop-common-2.7.2.jar:na]
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669) ~[hadoop-common-2.7.2.jar:na]
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371) ~[hadoop-common-2.7.2.jar:na]
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170) ~[hadoop-common-2.7.2.jar:na]
at com.alibaba.datax.plugin.reader.hdfsreader.DFSUtil.getHDFSAllFiles(DFSUtil.java:130) ~[hdfsreader-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.plugin.reader.hdfsreader.DFSUtil.getAllFiles(DFSUtil.java:119) ~[hdfsreader-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.plugin.reader.hdfsreader.HdfsReader$Job.prepare(HdfsReader.java:169) ~[hdfsreader-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.job.JobContainer.prepareJobReader(JobContainer.java:715) ~[datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.job.JobContainer.prepare(JobContainer.java:308) ~[datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.job.JobContainer.start(JobContainer.java:115) ~[datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.Engine.start(Engine.java:92) [datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.Engine.entry(Engine.java:171) [datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.Engine.main(Engine.java:204) [datax-core-0.0.1-SNAPSHOT.jar:na]
`

Start at com.alibaba.datax.plugin.reader.hdfsreader.DFSUtil.java:130 and HdfsReader.java:169, then reproduce the failure against an HDFS cluster using the reported stack trace. Determine what causes the ViewFs constructor lookup to fail and verify completion by successfully reading the cluster data without this exception.

Written by the indexing model from the issue text.