java.io.IOException: One schema is null [One schema is null]

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    Root Cause Analysis

    1. java.io.IOException

      One schema is null [One schema is null]

      at org.apache.pig.impl.logicalLayer.schema.Schema.mergeSchema()
    2. org.apache.pig
      Main.main
      1. org.apache.pig.impl.logicalLayer.schema.Schema.mergeSchema(Schema.java:1245)
      2. org.apache.pig.impl.logicalLayer.schema.Schema.mergeSchema(Schema.java:1305)
      3. org.apache.pig.impl.logicalLayer.schema.Schema.mergeSchema(Schema.java:1305)
      4. org.apache.pig.impl.logicalLayer.schema.Schema.mergeSchema(Schema.java:1305)
      5. org.apache.pig.impl.logicalLayer.schema.Schema.mergeSchema(Schema.java:1305)
      6. org.apache.pig.data.DataType.determineFieldSchema(DataType.java:793)
      7. org.apache.pig.builtin.BinStorage.determineSchema(BinStorage.java:229)
      8. org.apache.pig.impl.logicalLayer.LOLoad.getSchema(LOLoad.java:136)
      9. org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:584)
      10. org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:60)
      11. org.apache.pig.PigServer.parseQuery(PigServer.java:295)
      12. org.apache.pig.PigServer.registerQuery(PigServer.java:263)
      13. org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:439)
      14. org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:249)
      15. org.apache.pig.tools.grunt.GruntParser.parseContOnError(GruntParser.java:94)
      16. org.apache.pig.tools.grunt.Grunt.run(Grunt.java:58)
      17. org.apache.pig.Main.main(Main.java:282)
      17 frames