fix (#2051)

Author: KareemMusleh

unsloth/models/llama.py

@@ -1548,7 +1548,7 @@ def unsloth_fast_generate(
         if "input_ids" in kwargs and kwargs["input_ids"] is not None and "max_new_tokens" in kwargs:
             if kwargs["input_ids"].shape[-1] + kwargs["max_new_tokens"] > self.config.max_position_embeddings:
                 raise ValueError(
-                    f'Unsloth: input length {kwargs["input_ids"].shape[-1]} + max_new_tokens {kwargs["max_new_tokens"]} exceeds the maximum sequence length of {model.config.max_position_embeddings}!\n'\
+                    f'Unsloth: input length {kwargs["input_ids"].shape[-1]} + max_new_tokens {kwargs["max_new_tokens"]} exceeds the maximum sequence length of {self.config.max_position_embeddings}!\n'\
                     'You will need to do long context extension by increasing the `max_seq_length` in `FastLanguageModel.from_pretrained`.'
                 )
     pass