How to use neuralcoref in Spacy

I have been trying to use the library neuralcoref: State-of-the-art coreference resolution based on neural nets and spaCy. I am using Ubuntu 16.04, Python 3.7.3 in conda 1.9.7 and Spacy 2.2.4.

My code (from the https://spacy.io/universe/project/neuralcoref):

import spacy
import neuralcoref
    

nlp = spacy.load('en_core_web_sm')
neuralcoref.add_to_pipe(nlp)
doc1 = nlp('My sister has a dog. She loves him.')
print(doc1._.coref_clusters)

doc2 = nlp('Angela lives in Boston. She is quite happy in that city.')
for ent in doc2.ents:
    print(ent._.coref_cluster)

I have got this error

/home/daniel/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: spacy.morphology.Morphology size changed, may indicate binary incompatibility. Expected 104 from C header, got 112 from PyObject
  return f(*args, **kwds)
/home/daniel/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: spacy.vocab.Vocab size changed, may indicate binary incompatibility. Expected 96 from C header, got 104 from PyObject
  return f(*args, **kwds)
/home/daniel/anaconda3/lib/python3.7/importlib/_bootstrap.py:219: RuntimeWarning: spacy.tokens.span.Span size changed, may indicate binary incompatibility. Expected 72 from C header, got 80 from PyObject
  return f(*args, **kwds)

I have tried to downgrade the version of Spacy to 2.1.0 as suggested by this link:

conda config --append channels conda-forge
conda install spacy=2.1.0

However, I am not able

PackagesNotFoundError: The following packages are not available from current channels:

  - spacy=2.1.0

Current channels:

  - https://conda.anaconda.org/conda-forge/linux-64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.anaconda.com/pkgs/main/linux-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/r/linux-64
  - https://repo.anaconda.com/pkgs/r/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.

How can I solve this issue without downgrade? Is there any new updated version of neuralcoref?

For neuralcoref to work, you need to use spaCy version 2.1.0 and python version 3.7. That is the only combination that neuralcored works for on Ubuntu 16.04 and on Mac.

1. Install python 3.7 on your machine, see here
2. Make sure the selected version of python is 3.7
3. Create your project folder
4. Create a python virtual environment in your given project folder like so, python -m venv ./venv,
5. Install spaCy 2.1.0 like so python -m pip install spacy==2.1.0.
6. Install neuralcoref python -m pip install neuralcoref

Hope this helps.

After running your code above, I get the following output:

[My sister: [My sister, She], a dog: [a dog, him]]
Angela: [Angela, She]
Boston: [Boston, that city]