Hi! I am using DeepSpeech 0.7.0 alpha2. I also receive the error when I am trying generate_package.py
4860 unique words read from vocabulary file.
Doesn’t look like a character based model.
Error: Can’t parse scorer file, invalid header. Try updating your scorer file.
Package created in kenlm.scorer
I don’t understand what is that -v argument that you are talking about and where I should place it. Or whatever is the problem 
I performed the following steps so far:
path/lmplz --text vocabulary.txt --arpa words.arpa --o 3
path/build_binary -T -s words.arpa lm.binary
For the generate_package.py :
python generate_package.py --alphabet path/alphabet.txt --lm path/lm.binary --vocab path/vocab.txt --default_alpha 0.75 --default_beta 1.85 --package kenlm.scorer