[PyTorch Edge] Add proper error message when loading incompatible model with lite interpreter (#59354)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59354
Check if the model has `bytecode.pkl` and provide proper error message before loading model. Test it by loading a model.pt and model.ptl.
```
>>> from torch.jit.mobile import _load_for_lite_interpreter
>>> _load_for_lite_interpreter("/Users/chenlai/Documents/pytorch/data/mobilenet_v2.pt")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/chenlai/pytorch/torch/jit/mobile/__init__.py", line 48, in _load_for_lite_interpreter
cpp_module = torch._C._load_for_lite_interpreter(f, map_location) # type: ignore[attr-defined]
RuntimeError: The model is not generated from the api _save_for_lite_interpreter. Please regenerate the module by scripted_module._save_for_lite_interpreter('model.ptl'). Refer to https://pytorch.org/tutorials/prototype/lite_interpreter.html for more details.
```
iOS:
Android:
Differential Revision:
D28856713
D28856713
Test Plan: Imported from OSS
Reviewed By: dhruvbird
Pulled By: cccclai
fbshipit-source-id: c3f9a3b64459dda6811d296371c8a2eaf22f8b20
pytorch
91b7bcf4 - [PyTorch Edge] Add proper error message when loading incompatible model with lite interpreter (#59354)
