undefined symbol: THPVariableClass

[mhnasseri]

Hello,

I want to run the code. So, at first I built the MultiScaleDeformableAttention Module and it is installed successfully.

(virenv) mohammadh@ut-cavlab:/hdd/nasseri/TransTrack-main/models/ops$ python3 setup.py build install --install-lib='/hdd/nasseri/virenv/bin'
running build
running build_py
running build_ext
running install
running bdist_egg
running egg_info
writing MultiScaleDeformableAttention.egg-info/PKG-INFO
writing dependency_links to MultiScaleDeformableAttention.egg-info/dependency_links.txt
writing top-level names to MultiScaleDeformableAttention.egg-info/top_level.txt
reading manifest file 'MultiScaleDeformableAttention.egg-info/SOURCES.txt'
writing manifest file 'MultiScaleDeformableAttention.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/functions
copying build/lib.linux-x86_64-3.6/functions/ms_deform_attn_func.py -> build/bdist.linux-x86_64/egg/functions
copying build/lib.linux-x86_64-3.6/functions/__init__.py -> build/bdist.linux-x86_64/egg/functions
creating build/bdist.linux-x86_64/egg/modules
copying build/lib.linux-x86_64-3.6/modules/ms_deform_attn.py -> build/bdist.linux-x86_64/egg/modules
copying build/lib.linux-x86_64-3.6/modules/__init__.py -> build/bdist.linux-x86_64/egg/modules
copying build/lib.linux-x86_64-3.6/MultiScaleDeformableAttention.cpython-36m-x86_64-linux-gnu.so -> build/bdist.linux-x86_64/egg
byte-compiling build/bdist.linux-x86_64/egg/functions/ms_deform_attn_func.py to ms_deform_attn_func.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/functions/__init__.py to __init__.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/modules/ms_deform_attn.py to ms_deform_attn.cpython-36.pyc
byte-compiling build/bdist.linux-x86_64/egg/modules/__init__.py to __init__.cpython-36.pyc
creating stub loader for MultiScaleDeformableAttention.cpython-36m-x86_64-linux-gnu.so
byte-compiling build/bdist.linux-x86_64/egg/MultiScaleDeformableAttention.py to MultiScaleDeformableAttention.cpython-36.pyc
creating build/bdist.linux-x86_64/egg/EGG-INFO
copying MultiScaleDeformableAttention.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MultiScaleDeformableAttention.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MultiScaleDeformableAttention.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MultiScaleDeformableAttention.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
writing build/bdist.linux-x86_64/egg/EGG-INFO/native_libs.txt
zip_safe flag not set; analyzing archive contents...
__pycache__.MultiScaleDeformableAttention.cpython-36: module references __file__
creating 'dist/MultiScaleDeformableAttention-1.0-py3.6-linux-x86_64.egg' and adding 'build/bdist.linux-x86_64/egg' to it
removing 'build/bdist.linux-x86_64/egg' (and everything under it)
Processing MultiScaleDeformableAttention-1.0-py3.6-linux-x86_64.egg
removing '/hdd/nasseri/virenv/bin/MultiScaleDeformableAttention-1.0-py3.6-linux-x86_64.egg' (and everything under it)
creating /hdd/nasseri/virenv/bin/MultiScaleDeformableAttention-1.0-py3.6-linux-x86_64.egg
Extracting MultiScaleDeformableAttention-1.0-py3.6-linux-x86_64.egg to /hdd/nasseri/virenv/bin
MultiScaleDeformableAttention 1.0 is already the active version in easy-install.pth

Installed /hdd/nasseri/virenv/bin/MultiScaleDeformableAttention-1.0-py3.6-linux-x86_64.egg
Processing dependencies for MultiScaleDeformableAttention==1.0
Finished processing dependencies for MultiScaleDeformableAttention==1.0

and after that the pip can find the MultiScaleDeformableAttention Module:

pip show MultiScaleDeformableAttention
Name: MultiScaleDeformableAttention
Version: 1.0
Summary: Multi-Scale Deformable Attention Module in Deformable DETR
Home-page: xxx
Author: Weijie Su
Author-email: UNKNOWN
License: UNKNOWN
Location: /hdd/nasseri/virenv/bin
Requires:
Required-by:

But when I run the main_track.py, I get the following error:

(virenv) mohammadh@ut-cavlab:/hdd/nasseri/TransTrack-main$ python3 main_track.py
Traceback (most recent call last):
  File "main_track.py", line 25, in <module>
    from models import build_tracktrain_model, build_tracktest_model, build_model
  File "/hdd/nasseri/TransTrack-main/models/__init__.py", line 10, in <module>
    from .deformable_detr import build
  File "/hdd/nasseri/TransTrack-main/models/deformable_detr.py", line 25, in <module>
    from .deformable_transformer import build_deforamble_transformer
  File "/hdd/nasseri/TransTrack-main/models/deformable_transformer.py", line 18, in <module>
    from models.ops.modules import MSDeformAttn
  File "/hdd/nasseri/TransTrack-main/models/ops/modules/__init__.py", line 1, in <module>
    from .ms_deform_attn import MSDeformAttn
  File "/hdd/nasseri/TransTrack-main/models/ops/modules/ms_deform_attn.py", line 11, in <module>
    from ..functions import MSDeformAttnFunction, ms_deform_attn_core_pytorch
  File "/hdd/nasseri/TransTrack-main/models/ops/functions/__init__.py", line 1, in <module>
    from .ms_deform_attn_func import MSDeformAttnFunction, ms_deform_attn_core_pytorch, ms_deform_attn_core_pytorch_mot
  File "/hdd/nasseri/TransTrack-main/models/ops/functions/ms_deform_attn_func.py", line 11, in <module>
    import MultiScaleDeformableAttention as MSDA
ImportError: /hdd/nasseri/virenv/bin/MultiScaleDeformableAttention-1.0-py3.6-linux-x86_64.egg/MultiScaleDeformableAttention.cpython-36m-x86_64-linux-gnu.so: undefined symbol: THPVariableClass

How can I solve the problem?