java.lang.IncompatibleClassChangeError

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    • java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected at org.apache.crunch.impl.mr.run.CrunchInputFormat.getSplits(CrunchInputFormat.java:44) at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:493) at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:510) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:394) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1295) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1292) 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:1548) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1292) at org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchControlledJob.submit(CrunchControlledJob.java:340) at org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchJobControl.startReadyJobs(CrunchJobControl.java:277) at org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchJobControl.pollJobStatusAndStartNewOnes(CrunchJobControl.java:316) at org.apache.crunch.impl.mr.exec.MRExecutor.monitorLoop(MRExecutor.java:113) at org.apache.crunch.impl.mr.exec.MRExecutor.access$000(MRExecutor.java:55) at org.apache.crunch.impl.mr.exec.MRExecutor$1.run(MRExecutor.java:84) at java.lang.Thread.run(Thread.java:744)
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