Hi, I get the following error when I try to run the Lab 3 - Pig tutorial 2016-09-07 20:06:51,165 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1070: Could not resolve sum using imports: [, java.lang., org.apache.pig.builtin., org.apache.pig.impl.builtin.] , Hi, the details of the error are: 2016-09-07 20:06:51,165 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1070: Could not resolve sum using imports: [, java.lang., org.apache.pig.builtin., org.apache.pig.impl.builtin.]
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