Cannot load the 'resnet18_baseline_att_224x224_A_epoch_249_trt.pth' model anymore

[Laurent Weingart]

Hi guys,

I had a jetson AGX Xavier on which I developed an action recognition app using your torch2trt and trt_pose, and it worked well.
This was in January 2021.

Today, I have a new Jetson AGX Orin and I try to make my app running on it.
The issue is that in two years, libraries have evolved all around and nothing works anymore.

I cloned the latest version of both torch2trt and trt_pose, but this is where it leads me to.
I get this error now:

/home/jetson/.local/lib/python3.8/site-packages/sklearn/utils/linear_assignment_.py:17: DeprecationWarning: The linear_assignment_ module is deprecated in 0.21 and will be removed from 0.23. Use scipy.optimize.linear_sum_assignment instead.
  warnings.warn(
[09/10/2023-16:04:05] [TRT] [E] 1: [stdArchiveReader.cpp::StdArchiveReader::37] Error Code 1: Serialization (Serialization assertion safeVersionRead == safeSerializationVersion failed.Version tag does not match. Note: Current Version: 0, Serialized Engine Version: 97)
[09/10/2023-16:04:05] [TRT] [E] 4: [runtime.cpp::deserializeCudaEngine::65] Error Code 4: Internal Error (Engine deserialization failed.)
Traceback (most recent call last):
  File "app_playground.py", line 42, in <module>
    model_trt.load_state_dict(torch.load(OPTIMIZED_MODEL))
  File "/home/jetson/.local/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1987, in load_state_dict
    load(self, state_dict)
  File "/home/jetson/.local/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1969, in load
    module._load_from_state_dict(
  File "/home/jetson/.local/lib/python3.8/site-packages/torch2trt-0.4.0-py3.8-linux-aarch64.egg/torch2trt/torch2trt.py", line 591, in _load_from_state_dict
    self.context = self.engine.create_execution_context()
AttributeError: 'NoneType' object has no attribute 'create_execution_context'

OPTIMIZED_MODEL being the path to the resnet18_baseline_att_224x224_A_epoch_249_trt.pth file.

This appears to be a version issue, but I'm not sure of the version of what.

I also tried to install the torch2trt version of early January 2021 by checking out a commit after naming the 0.2.0 version in a virtual environment (as other of my applications are using the current torch2trt), but when in a virtual environment, I get the following error when running python setup.py install:

running install
/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/command/easy_install.py:144: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
Traceback (most recent call last):
  File "setup.py", line 38, in <module>
    setup(
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/__init__.py", line 108, in setup
    return distutils.core.setup(**attrs)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/_distutils/core.py", line 185, in setup
    return run_commands(dist)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/_distutils/core.py", line 201, in run_commands
    dist.run_commands()
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/_distutils/dist.py", line 969, in run_commands
    self.run_command(cmd)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/dist.py", line 1221, in run_command
    super().run_command(command)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
    cmd_obj.run()
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/command/install.py", line 74, in run
    self.do_egg_install()
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/command/install.py", line 117, in do_egg_install
    cmd.ensure_finalized()  # finalize before bdist_egg munges install cmd
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/_distutils/cmd.py", line 111, in ensure_finalized
    self.finalize_options()
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/setuptools/command/easy_install.py", line 311, in finalize_options
    self.local_index = Environment(self.shadow_path + sys.path)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/pkg_resources/__init__.py", line 1044, in __init__
    self.scan(search_path)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/pkg_resources/__init__.py", line 1077, in scan
    self.add(dist)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/pkg_resources/__init__.py", line 1096, in add
    dists.sort(key=operator.attrgetter('hashcmp'), reverse=True)
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/pkg_resources/__init__.py", line 2640, in hashcmp
    self.parsed_version,
  File "/home/jetson/.virtualenvs/foo/lib/python3.8/site-packages/pkg_resources/__init__.py", line 2694, in parsed_version
    raise packaging.version.InvalidVersion(f"{str(ex)} {info}") from None
pkg_resources.extern.packaging.version.InvalidVersion: Invalid version: '0.23ubuntu1' (package: distro-info)

Would you by chance an idea to point me in the right direction and help me sort this mess out?

Thank you very much for your help in advance

Cheers