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Error without pig script line information
hi, all ,
here's an error that has no line numbers attached:

ERROR 1200: org.apache.pig.newplan.logical.expression.ScalarExpression cannot be cast to org.apache.pig.newplan.logical.expression.ProjectExpression

Failed to parse: org.apache.pig.newplan.logical.expression.ScalarExpression cannot be cast to org.apache.pig.newplan.logical.expression.ProjectExpression
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:180)
at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1609)
at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1582)
at org.apache.pig.PigServer.registerQuery(PigServer.java:584)
at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:942)
at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:386)
at org.apache.pig.tools.grunt.GruntParser.loadScript(GruntParser.java:516)
at org.apache.pig.tools.grunt.GruntParser.processExplain(GruntParser.java:314)
at org.apache.pig.tools.grunt.Grunt.checkScript(Grunt.java:98)
at org.apache.pig.Main.run(Main.java:434)
at org.apache.pig.Main.main(Main.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
Caused by: java.lang.ClassCastException: org.apache.pig.newplan.logical.expression.ScalarExpression cannot be cast to org.apache.pig.newplan.logical.expression.ProjectExpression
at org.apache.pig.parser.LogicalPlanGenerator.nested_proj(LogicalPlanGenerator.java:12881)
at org.apache.pig.parser.LogicalPlanGenerator.nested_op(LogicalPlanGenerator.java:12640)
at org.apache.pig.parser.LogicalPlanGenerator.nested_command(LogicalPlanGenerator.java:12463)
at org.apache.pig.parser.LogicalPlanGenerator.nested_blk(LogicalPlanGenerator.java:12182)
at org.apache.pig.parser.LogicalPlanGenerator.foreach_plan(LogicalPlanGenerator.java:12090)
at org.apache.pig.parser.LogicalPlanGenerator.foreach_clause(LogicalPlanGenerator.java:11915)
at org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1364)
at org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:683)
at org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:483)
at org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:369)
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:171)
... 15 more

Can anybody provide any information? Or can anybody attach the script information with this Error?

thank.
Haitao Yao
[EMAIL PROTECTED]
weibo: @haitao_yao
Skype:  haitao.yao.final