update modeling_fuxitranyu

modeling_fuxitranyu.py

@@ -31,10 +31,11 @@ from transformers.utils import (
 from .configuration_fuxitranyu import FuxiTranyuConfig
 
 
-if is_flash_attn_2_available():
+try:
     from flash_attn import flash_attn_func, flash_attn_varlen_func
     from flash_attn.bert_padding import index_first_axis, pad_input, unpad_input  # noqa
-
+except:
+    pass
 
 logger = logging.get_logger(__name__)