错误：无法安装 en-core-web-trf，因为这些软件包版本具有冲突的依赖项

Question

我使用以下命令（来自 spacy 网站 here）在 Windows 10 home 64 位下安装 spacy 和 en_core_web_trf，但是，我在运行最后（第三行）命令时遇到了问题。

pip install -U pip setuptools wheel
pip install -U spacy
python -m spacy download en_core_web_trf

错误：

INFO: pip is looking at multiple versions of en-core-web-trf to determine which version is compatible with other requirements. This could take a while.
ERROR: Cannot install en-core-web-trf because these package versions have conflicting dependencies.

The conflict is caused by:
    spacy-transformers 1.1.4 depends on torch>=1.6.0
    spacy-transformers 1.1.3 depends on torch>=1.6.0
    spacy-transformers 1.1.2 depends on torch>=1.6.0

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/user_guide/#fixing-conflicting-dependencies

有人知道怎么解决吗？谢谢！我整个晚上都被困在这里。

卸载spacy并使用pip install spacy-transformers -f https://download.pytorch.org/whl/torch_stable.html重新安装后更新出错

ERROR: Cannot install spacy-transformers==0.5.0, spacy-transformers==0.5.1, spacy-transformers==0.5.2, spacy-transformers==0.5.3, spacy-transformers==0.6.1, spacy-transformers==0.6.2, spacy-transformers==1.0.0, spacy-transformers==1.0.1, spacy-transformers==1.0.2, spacy-transformers==1.0.3, spacy-transformers==1.0.4, spacy-transformers==1.0.5, spacy-transformers==1.0.6, spacy-transformers==1.1.0, spacy-transformers==1.1.1, spacy-transformers==1.1.2, spacy-transformers==1.1.3 and spacy-transformers==1.1.4 because these package versions have conflicting dependencies.

The conflict is caused by:
    spacy-transformers 1.1.4 depends on torch>=1.6.0
    spacy-transformers 1.1.3 depends on torch>=1.6.0
    spacy-transformers 1.1.2 depends on torch>=1.6.0
    spacy-transformers 1.1.1 depends on torch>=1.6.0
    spacy-transformers 1.1.0 depends on torch>=1.6.0
    spacy-transformers 1.0.6 depends on torch>=1.5.0
    spacy-transformers 1.0.5 depends on torch>=1.5.0
    spacy-transformers 1.0.4 depends on torch>=1.5.0
    spacy-transformers 1.0.3 depends on torch>=1.5.0
    spacy-transformers 1.0.2 depends on torch>=1.5.0
    spacy-transformers 1.0.1 depends on torch>=1.5.0
    spacy-transformers 1.0.0 depends on torch>=1.5.0
    spacy-transformers 0.6.2 depends on spacy<2.4.0 and >=2.3.0
    spacy-transformers 0.6.1 depends on spacy<2.4.0 and >=2.3.0
    spacy-transformers 0.5.3 depends on spacy<2.3.0 and >=2.2.1
    spacy-transformers 0.5.2 depends on spacy<2.3.0 and >=2.2.1
    spacy-transformers 0.5.1 depends on spacy<2.3.0 and >=2.2.1
    spacy-transformers 0.5.0 depends on spacy<2.3.0 and >=2.2.1

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/user_guide/#fixing-conflicting-dependencies

Answer 1

试试：
pip uninstall spacy-transformers 1.1.4
pip uninstall spacy-transformers 1.1.3
pip uninstall spacy-transformers 1.1.2
然后执行：

pip install spacy-transformers -f https://download.pytorch.org/whl/torch_stable.html

您可以在https://pypi.org/project/spacy-transformers/找到完整的安装过程

Answer 2

与我有同样问题的人的信息。

提到的问题终于没有解决，至少我尝试重新安装包，重新安装python（重新安装之前完全卸载它）。没有什么对我有用。

我最终是如何避免这种情况的？

我完全卸载了python。

安装Anaconda（最新版本），在安装Anaconda的同时，pip和python也默认安装。然后我在windows命令行中使用pip install XX，不管是安装spacy，还是安装requirements.txt，都运行良好。这就是我避免上述问题的方法。

希望对同样有此问题的人有所帮助。