1.问题产生原因
在跑别人深度学习代码时，根据需求创建conda环境，如下：
yml内容是：
name: pointdsc
channels:
- pytorch
- open3d-admin
- conda-forge
- defaults
dependencies:
- _libgcc_mutex=0.1=main
- absl-py=0.9.0=py37hc8dfbb8_1
- argon2-cffi=20.1.0=py37h7b6447c_1
- attrs=19.3.0=py_0
- backcall=0.2.0=py_0
- blas=1.0=mkl
- bleach=3.1.5=py_0
- blinker=1.4=py_1
- brotlipy=0.7.0=py37h8f50634_1000
- c-ares=1.16.1=h516909a_0
- ca-certificates=2020.6.20=hecda079_0
- cachetools=4.1.1=py_0
- certifi=2020.6.20=py37hc8dfbb8_0
- cffi=1.14.1=py37he30daa8_0
- chardet=3.0.4=py37hc8dfbb8_1006
- click=7.1.2=pyh9f0ad1d_0
- cryptography=3.0=py37hb09aad4_0
- cudatoolkit=10.1.243=h6bb024c_0
- decorator=4.4.2=py_0
- defusedxml=0.6.0=py_0
- entrypoints=0.3=py37_0
- freetype=2.10.2=h5ab3b9f_0
- google-auth=1.20.1=py_0
- google-auth-oauthlib=0.4.1=py_2
- grpcio=1.31.0=py37hb0870dc_0
- idna=2.10=pyh9f0ad1d_0
- importlib-metadata=1.7.0=py37_0
- importlib_metadata=1.7.0=0
- intel-openmp=2020.1=217
- ipykernel=5.3.4=py37h5ca1d4c_0
- ipython=7.17.0=py37h39e3cac_0
- ipython_genutils=0.2.0=py37_0
- ipywidgets=7.5.1=py_0
- jedi=0.17.2=py37_0
- jinja2=2.11.2=py_0
- joblib=0.16.0=py_0
- jpeg=9b=h024ee3a_2
- jsonschema=3.2.0=py37_1
- jupyter_client=6.1.6=py_0
- jupyter_core=4.6.3=py37_0
- lcms2=2.11=h396b838_0
- ld_impl_linux-64=2.33.1=h53a641e_7
- libedit=3.1.20191231=h14c3975_1
- libffi=3.3=he6710b0_2
- libgcc-ng=9.1.0=hdf63c60_0
- libgfortran-ng=7.3.0=hdf63c60_0
- libpng=1.6.37=hbc83047_0
- libprotobuf=3.12.4=h8b12597_0
- libsodium=1.0.18=h7b6447c_0
- libstdcxx-ng=9.1.0=hdf63c60_0
- libtiff=4.1.0=h2733197_1
- lz4-c=1.9.2=he6710b0_1
- markdown=3.2.2=py_0
- markupsafe=1.1.1=py37h14c3975_1
- mistune=0.8.4=py37h14c3975_1001
- mkl=2020.1=217
- mkl-service=2.3.0=py37he904b0f_0
- mkl_fft=1.1.0=py37h23d657b_0
- mkl_random=1.1.1=py37h0573a6f_0
- nbconvert=5.6.1=py37_1
- nbformat=5.0.7=py_0
- ncurses=6.2=he6710b0_1
- ninja=1.10.0=py37hfd86e86_0
- notebook=6.1.1=py37_0
- numpy=1.19.1=py37hbc911f0_0
- numpy-base=1.19.1=py37hfa32c7d_0
- oauthlib=3.0.1=py_0
- olefile=0.46=py37_0
- open3d=0.9.0.0=py37_0
- openssl=1.1.1g=h516909a_1
- packaging=20.4=py_0
- pandoc=2.10=0
- pandocfilters=1.4.2=py37_1
- parso=0.7.0=py_0
- pexpect=4.8.0=py37_1
- pickleshare=0.7.5=py37_1001
- pillow=7.2.0=py37hb39fc2d_0
- pip=20.2.1=py37_0
- prometheus_client=0.8.0=py_0
- prompt-toolkit=3.0.5=py_0
- protobuf=3.12.4=py37h3340039_0
- ptyprocess=0.6.0=py37_0
- pyasn1=0.4.8=py_0
- pyasn1-modules=0.2.7=py_0
- pycparser=2.20=py_2
- pygments=2.6.1=py_0
- pyjwt=1.7.1=py_0
- pyopenssl=19.1.0=py_1
- pyparsing=2.4.7=py_0
- pyrsistent=0.16.0=py37h7b6447c_0
- pysocks=1.7.1=py37hc8dfbb8_1
- python=3.7.7=hcff3b4d_5
- python-dateutil=2.8.1=py_0
- python_abi=3.7=1_cp37m
- pytorch=1.6.0=py3.7_cuda10.1.243_cudnn7.6.3_0
- pyzmq=19.0.1=py37he6710b0_1
- readline=8.0=h7b6447c_0
- requests=2.24.0=pyh9f0ad1d_0
- requests-oauthlib=1.3.0=pyh9f0ad1d_0
- rsa=4.6=pyh9f0ad1d_0
- scikit-learn=0.23.1=py37h423224d_0
- scipy=1.5.0=py37h0b6359f_0
- send2trash=1.5.0=py37_0
- setuptools=49.3.1=py37_0
- six=1.15.0=py_0
- sqlite=3.32.3=h62c20be_0
- tensorboard=2.3.0=py_0
- tensorboard-plugin-wit=1.6.0=pyh9f0ad1d_0
- tensorboardx=2.1=py_0
- terminado=0.8.3=py37_0
- testpath=0.4.4=py_0
- threadpoolctl=2.1.0=pyh5ca1d4c_0
- tk=8.6.10=hbc83047_0
- torchvision=0.7.0=py37_cu101
- tornado=6.0.4=py37h7b6447c_1
- traitlets=4.3.3=py37_0
- urllib3=1.25.10=py_0
- wcwidth=0.2.5=py_0
- webencodings=0.5.1=py37_1
- werkzeug=1.0.1=pyh9f0ad1d_0
- wheel=0.34.2=py37_0
- widgetsnbextension=3.5.1=py37_0
- xz=5.2.5=h7b6447c_0
- zeromq=4.3.2=he6710b0_2
- zipp=3.1.0=py_0
- zlib=1.2.11=h7b6447c_3
- zstd=1.4.5=h9ceee32_0
- pip:
- easydict==1.9
- tqdm==4.48.2
prefix: /home/altizure/anaconda3/envs/pointdsc2.报错形式
最初以为是 源的问题，换了各种源都不行，原来是把第二个等号后的内容删除掉就可以了(包括第二个等号)，但是删除后大概率还会报这样的错：
3.解决策略
把上面那张图里报错的包移到yml文件中pip下就可以了，如图：
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