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conda命令出现unexpected error

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执行 conda 命令时，报错。

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$ /opt/anaconda3/bin/conda create -n py38 python=3.8`

  environment variables:
                 CIO_TEST=<not set>
                CLASSPATH=.:/Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Contents/Home/lib/
                          tools.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Contents/H
                          ome/lib/dt.jar
        CONDA_DEFAULT_ENV=base
                CONDA_EXE=/opt/anaconda3/bin/conda
             CONDA_PREFIX=/opt/anaconda3
    CONDA_PROMPT_MODIFIER=(base)
         CONDA_PYTHON_EXE=/opt/anaconda3/bin/python
               CONDA_ROOT=/opt/anaconda3
              CONDA_SHLVL=1
           CURL_CA_BUNDLE=<not set>
                   GOPATH=/Users/simon/Development/workspace/go
                     PATH=/opt/anaconda3/bin:/Users/simon/.yarn/bin:/Users/simon/.config/yarn/gl
                          obal/node_modules/.bin:/Users/simon/opt/anaconda3/bin:/Users/simon/opt
                          /anaconda3/bin:/anaconda3/bin:/Library/Frameworks/Python.framework/Ver
                          sions/3.6/bin:/Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Conten
                          ts/Home/bin:/Users/simon/Development/maven/apache-maven-3.6.1/bin:/Use
                          rs/simon/.yarn/bin:/Users/simon/.config/yarn/global/node_modules/.bin:
                          /opt/anaconda3/bin:/opt/anaconda3/condabin:/Users/simon/opt/anaconda3/
                          bin:/Users/simon/opt/anaconda3/bin:/anaconda3/bin:/Library/Frameworks/
                          Python.framework/Versions/3.6/bin:/Library/Java/JavaVirtualMachines/jd
                          k1.8.0_92.jdk/Contents/Home/bin:/Users/simon/Development/maven/apache-
                          maven-3.6.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applicat
                          ions/VMware Fusion.app/Contents/Public:/usr/local/go/bin:/usr/local/go
                          /bin:/Users/simon/Development/workspace/go/bin:/usr/local/go/bin:/User
                          s/simon/Development/workspace/go/bin
       REQUESTS_CA_BUNDLE=<not set>
            SSL_CERT_FILE=<not set>

     active environment : base
    active env location : /opt/anaconda3
            shell level : 1
       user config file : /Users/simon/.condarc
 populated config files : /Users/simon/.condarc
          conda version : 4.13.0
    conda-build version : 3.18.11
         python version : 3.7.6.final.0
       virtual packages : __osx=10.15.7=0
                          __unix=0=0
                          __archspec=1=x86_64
       base environment : /opt/anaconda3  (writable)
      conda av data dir : /opt/anaconda3/etc/conda
  conda av metadata url : None
           channel URLs : https://pypi.ricequant.com/simple/osx-64
                          https://pypi.ricequant.com/simple/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/osx-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/osx-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/osx-64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch
          package cache : /opt/anaconda3/pkgs
                          /Users/simon/.conda/pkgs
       envs directories : /opt/anaconda3/envs
                          /Users/simon/.conda/envs
               platform : osx-64
             user-agent : conda/4.13.0 requests/2.22.0 CPython/3.7.6 Darwin/19.6.0 OSX/10.15.7
                UID:GID : 501:20
             netrc file : None
           offline mode : False


An unexpected error has occurred. Conda has prepared the above report.

If submitted, this report will be used by core maintainers to improve
future releases of conda.
Would you like conda to send this report to the core maintainers?

[y/N]:

解决方案：

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$ conda config --show-sources
==> /Users/somebody/.condarc <==
ssl_verify: True
channels:
  - https://pypi.ricequant.com/simple
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
show_channel_urls: True

删除 /Users/somebody/.condarc，就可以解决了。

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