RuntimeError: you must first build vocabulary before training the model

[RaHuL VkS]

How do i correct this error when importing Word2vec in python

Traceback (most recent call last):

  File "<pyshell#0>", line 1, in <module>

    import word2vec

  File "word2vec.py", line 14, in <module>

    model = word2vec.Word2Vec(sentences, size=100, window=4, min_count=1, workers=4)

  File "/usr/local/lib/python2.7/dist-packages/gensim-0.12.3-py2.7-linux-x86_64.egg/gensim/models/word2vec.py", line 432, in __init__

    self.train(sentences)

  File "/usr/local/lib/python2.7/dist-packages/gensim-0.12.3-py2.7-linux-x86_64.egg/gensim/models/word2vec.py", line 690, in train

    raise RuntimeError("you must first build vocabulary before training the model")

RuntimeError: you must first build vocabulary before training the model

[Gordon Mohr]

[corrected repost] 

Your `sentences` corpus isn't providing any data when iterated-over. (Do you see the log line at the top of your screen-shot, "collected 0 word types from a corpus of 0 raw words and 0 sentences"? There would be real word counts there if `sentences` had provided actual text examples.)

- Gordon

[RaHuL]

ya,How to train and Vocabulary ? 

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