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From "Ngin Yun Chuan (JIRA)" <>
Subject [jira] [Created] (SINGA-409) [Singa 1.2.0] Basic `singa-cpu` import throws error
Date Tue, 20 Nov 2018 04:34:00 GMT
Ngin Yun Chuan created SINGA-409:

             Summary: [Singa 1.2.0] Basic `singa-cpu` import throws error
                 Key: SINGA-409
             Project: Singa
          Issue Type: Bug
         Environment: MacOS Mojave 10.14
            Reporter: Ngin Yun Chuan

When I run the image built from this Dockerfile in Docker:

FROM ubuntu:16.04

RUN apt-get update && apt-get -y upgrade

# Install conda with pip and python 3.6
RUN apt-get -y install curl bzip2 \
&& curl -sSL
-o /tmp/ \
&& bash /tmp/ -bfp /usr/local \
&& rm -rf /tmp/ \
&& conda create -y --name rafiki python=3.6 \
&& conda clean --all --yes
ENV PATH /usr/local/envs/rafiki/bin:$PATH
RUN conda install --name rafiki -y -c nusdbsystem singa-cpu==1.2.0

CMD python -c 'import singa'

I get an error:

>>> import singa
Traceback (most recent call last):
  File "/usr/local/envs/rafiki/lib/python3.6/site-packages/singa/", line 18,
in swig_import_helper
    return importlib.import_module(mname)
  File "/usr/local/envs/rafiki/lib/python3.6/importlib/", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 658, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 571, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 922, in create_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: /usr/local/envs/rafiki/lib/python3.6/site-packages/singa/../../../
version `GLIBCXX_3.4.20' not found (required by /usr/local/envs/rafiki/lib/python3.6/site-packages/singa/../../../

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/envs/rafiki/lib/python3.6/site-packages/singa/", line 18, in
    from . import singa_wrap
  File "/usr/local/envs/rafiki/lib/python3.6/site-packages/singa/", line 21,
in <module>
    _singa_wrap = swig_import_helper()
  File "/usr/local/envs/rafiki/lib/python3.6/site-packages/singa/", line 20,
in swig_import_helper
    return importlib.import_module('_singa_wrap')
  File "/usr/local/envs/rafiki/lib/python3.6/importlib/", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named '_singa_wrap'

On the other hand, when I downgrade the version from `1.2.0` to `1.1.1`, it seem to work fine.

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