Hi, looking in http://mvnrepository.com/artifact/org.apache.pig/pig/0.12.0
It seems that pig doesnt have an explicit dependency on hadoop-common. Im trying to decide which is the "Right" version of hadoop to have on my classpath when running pig 0.12 in my IDE, and hadoop 2.2 seems to cause a cryptic exception: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias uniqcnt at org.apache.pig.PigServer.openIterator(PigServer.java:880) at org.bigtop.bigpetstore.etl.PigETL.numberOfProductsByProduct(PigETL.java:99) at org.bigtop.bigpetstore.pigtest.TestPig.runPig(TestPig.java:61) at org.bigtop.bigpetstore.pigtest.TestPig.testPigETL(TestPig.java:51) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) So, any help would be appreciated in understanding the compile time integration of pig and hadoop . -- Jay Vyas http://jayunit100.blogspot.com