PIG:ERROR 1000:解析时出错

我在我的机器上安装了Pig 0.12.我跑的时候

darwin$ pig
grunt> ls /data/
hdfs://Nmame:10001/data/pg20417.txt    674570
hdfs://Nname:10001/data/pg4300.txt 1573150
hdfs:/Nname:10001/data/pg5000.txt  1423803
hdfs://Nname:10001/data/weather 

但是当我尝试创建查询时,出现以下错误:

grunt> book = load '/data/pg4300.txt' as (lines:chararray);
2014-06-30 17:40:08,939 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1000: Error during parsing. Encountered "  "book=load "" at line 2, column 1.
Was expecting one of:
     
    "cat" ...
    "clear" ...
    "fs" ...
    "sh" ...
    "cd" ...
    "cp" ...
    "copyFromLocal" ...
    "copyToLocal" ...
    "dump" ...
    "\\d" ...
    "describe" ...
    "\\de" ...
    "aliases" ...
    "explain" ...
    "\\e" ...
    "help" ...
    "history" ...
    "kill" ...
    "ls" ...
    "mv" ...
    "mkdir" ...
    "pwd" ...
    "quit" ...
    "\\q" ...
    "register" ...
    "rm" ...
    "rmf" ...
    "set" ...
    "illustrate" ...
    "\\i" ...
    "run" ...
    "exec" ...
    "scriptDone" ...
    "" ...
    "" ...
     ...
    ";" ...

Details at logfile: /Users/Documents/pig_1404175088198.log

我试图改变load到LOAD和as到AS,但毫无效果.