fix for older version of transformers

Author: Guang Yang

install_dev.py

@@ -34,7 +34,7 @@ def install_dep_from_source():
             "-m",
             "pip",
             "install",
-            "git+https://github.com/huggingface/transformers@7f00b325f8140c4964e3e81e6af0e53f5b9a2592#egg=transformers",
+            "git+https://github.com/huggingface/transformers@51f94ea06d19a6308c61bbb4dc97c40aabd12bad#egg=transformers",  # v4.52.4
         ]
     )
     subprocess.check_call(

optimum/exporters/executorch/integrations.py

@@ -104,6 +104,7 @@ def export(
                     strict=strict if strict is not None else True,
                 )
         else:
+            # Path to use legacy API, static export only due to pinned transformers version
             from transformers.integrations.executorch import (
                 convert_and_export_with_cache,
             )
@@ -113,9 +114,7 @@ def export(
                 cache_position if cache_position is not None else torch.tensor([0], dtype=torch.long)
             )
 
-            exported_program = convert_and_export_with_cache(
-                self.model, example_input_ids, example_cache_position, dynamic_shapes, strict
-            )
+            exported_program = convert_and_export_with_cache(self.model, example_input_ids, example_cache_position)
 
         return {"model": exported_program}