[E048] Can't import language de from spacy.lang.

[aourednik]

Rasa NLU version: 0.12.3

Operating system: CentOS Linux release 7.5.1804 (Core)

Issue:

Trying to run a Rasa_NLU server with

python -m rasa_nlu.server --path python/pure_nlu --emulate luis

Server starts but model fails to load.

2018-07-05 14:58:35+0200 [-] 2018-07-05 14:58:35 ERROR    __main__  - [E048] Can't import language de from spacy.lang.
2018-07-05 14:58:35+0200 [-] Traceback (most recent call last):
2018-07-05 14:58:35+0200 [-]   File "/home/user/miniconda3/lib/python3.6/site-packages/spacy/util.py", line 50, in get_lang_class
2018-07-05 14:58:35+0200 [-]     module = importlib.import_module('.lang.%s' % lang, 'spacy')
...

Upon checking the availability of the language in spacy, however, the language is available:

[user@server barchatbot]$ python -m spacy info

    Info about spaCy

    spaCy version      2.0.11         
    Location           /home/user/miniconda3/lib/python3.6/site-packages/spacy
    Platform           Linux-3.10.0-123.8.1.el7.x86_64-x86_64-with-centos-7.5.1804-Core
    Python version     3.6.5          
    Models             de

http://localhost:5000/status gives

{
  "available_projects": {
    "default": {
      "status": "ready",
      "available_models": [
        "model_20180524-150529"
      ],
      "loaded_models": []
    }
  }
}

Any advice?

[wrathagom]

@aourednik did you get this working?

[aourednik]

@wrathagom No, not yet. The strangest thing is, if I try to run get_lang_class (the function in spacy.util that raises the error) directly from the command line, it returns the correct class instead:

[user@server]$ python
Python 3.6.5 |Anaconda, Inc.| (default, Apr 29 2018, 16:14:56) 
[GCC 7.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from spacy import util
>>> a = util.get_lang_class('de')
>>> a
<class 'spacy.lang.de.German'>

[aourednik]

OK, this seems to be a CentOS only error, related to libstdc++.so.6(GLIBCXX_3.4.21)(64bit) not being available.
See e.g. https://stackoverflow.com/questions/48999946/libstdc-so-6glibcxx-3-4-2164bit-is-needed-centos-7-error

File "/home/user/miniconda3/lib/python3.6/site-packages/spacy/language.py", line 18, in <module>
    from .pipeline import DependencyParser, Tensorizer, Tagger, EntityRecognizer
  File "pipeline.pyx", line 1, in init spacy.pipeline
  File "arc_eager.pxd", line 12, in init spacy.syntax.nn_parser
  File "search.pxd", line 35, in init spacy.syntax.arc_eager
ImportError: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /home/user/miniconda3/lib/python3.6/site-packages/thinc/extra/search.cpython-36m-x86_64-linux-gnu.so)

conda install libgcc does not help, since the most recent version of libgcc is already installed.
I did not find a workaround.

[akelad]

since this seems to be a non Rasa related issue, I'll close this for now :) of course feel free to re-open if other problems still persist after finding a workaround for this one. (PS. have you seen this issue yet? ContinuumIO/anaconda-issues#483 - maybe some of those instructions will work?)