T5 model predict <UNK>
config = T5Config(num_layers=12,
num_decoder_layers=12,
pad_token_id=0,
es_token_id=VOCAB_SIZE + 2,
model_parallel=True,
vocab_size=VOCAB_SIZE,
num_heads=12,
d_model=1024,
d_kv=64,
d_ff=3072,
decoder_start_token_id= VOCAB_SIZE + 1,
)
model = T5ForConditionalGeneration(config)
this is my T5 model config.
epoch is 200 .I use it to train a translation model, 
but the results of prediction is <UNK>.

How can I use T5ForConditionalGeneration to train my custom model?
my config is right?


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