error in executing -- > python SemanticAnalyzer.py Body

[Mnnu-Ann]

when I executed the statement python SemanticAnalyzer.py Body following error was returned

COLLECTING TERMS Traceback (most recent call last): File "SemanticAnalyzer.py", line 307, in main(field,collection,solrUrl) File "SemanticAnalyzer.py", line 275, in main tdc = TermDocCollection(source=stvc,numTopics=150) File "SemanticAnalyzer.py", line 115, in init for termVector in source: File "SemanticAnalyzer.py", line 60, in next data = tv[3] #all of the terms and features in this vector IndexError: list index out of range

what should I do ???