在Linux系统中，使用conda安装包的时候出现问题，一直报Solving environment:failed，既环境失败的错误！

已有方法试验：

• 搜索一圈之后出现最多的答案是如图，结果conda update也报错，解决不了

参考：https://blog.csdn.net/weixin_44448148/article/details/88112783

• 多方寻找，终于找到一篇报错一样，通过挂V-P-.n解决，但是由于没有，放弃

参考：https://blog.csdn.net/qq_36414085/article/details/90048360

解决方案：

• 由于能查到的就几种方法，不是无法试就是没法解决，之后看到可以通过修改/.condarc解决问题（如下图），于是按照文章中写的方法去修改，还是无法解决！！！

参考：https://blog.csdn.net/zplai/article/details/105548165

• 然后突然发现昨晚因为安装完anaconda之后，由于命令行中输入anaconda-navigator打不开可视化界面，当时报错是在已有的通道中无法找到navigator，并提示在通道https://anaconda.org/中，于是在通道中加了这个地址。

• 但是没想到这个通道会造成什么问题，因为此通道位于国内源通道上方，猜测是此原因导致环境配置失败，想着后续也不会用到这个通道，于是直接删除此通道，问题解决，pandas安装成功！！！！！

报错内容参考

ldd@ubuntu:~$ conda install pandas=0.17.1
Solving environment: failed

# >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<

    Traceback (most recent call last):
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/exceptions.py", line 819, in __call__
        return func(*args, **kwargs)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/cli/main.py", line 78, in _main
        exit_code = do_call(args, p)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/cli/conda_argparse.py", line 77, in do_call
        exit_code = getattr(module, func_name)(args, parser)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/cli/main_create.py", line 11, in execute
        install(args, parser, 'create')
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/cli/install.py", line 235, in install
        force_reinstall=context.force,
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/solve.py", line 518, in solve_for_transaction
        force_remove, force_reinstall)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/solve.py", line 451, in solve_for_diff
        final_precs = self.solve_final_state(deps_modifier, prune, ignore_pinned, force_remove)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/solve.py", line 180, in solve_final_state
        index, r = self._prepare(prepared_specs)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/solve.py", line 592, in _prepare
        self.subdirs, prepared_specs)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/index.py", line 215, in get_reduced_index
        new_records = query_all(spec)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/index.py", line 184, in query_all
        return tuple(concat(future.result() for future in as_completed(futures)))
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/subdir_data.py", line 95, in query
        self.load()
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/subdir_data.py", line 149, in load
        _internal_state = self._load()
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/subdir_data.py", line 227, in _load
        mod_etag_headers.get('_mod'))
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/conda/core/subdir_data.py", line 437, in fetch_repodata_remote_request
        timeout=timeout)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/requests/sessions.py", line 546, in get
        return self.request('GET', url, **kwargs)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/requests/sessions.py", line 533, in request
        resp = self.send(prep, **send_kwargs)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/requests/sessions.py", line 646, in send
        r = adapter.send(request, **kwargs)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/requests/adapters.py", line 412, in send
        conn = self.get_connection(request.url, proxies)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/requests/adapters.py", line 309, in get_connection
        proxy_manager = self.proxy_manager_for(proxy)
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/requests/adapters.py", line 189, in proxy_manager_for
        **proxy_kwargs
      File "/home/ldd/anaconda3/lib/python3.7/site-packages/urllib3/contrib/socks.py", line 173, in __init__
        "Unable to determine SOCKS version from %s" % proxy_url
    ValueError: Unable to determine SOCKS version from socks://127.0.0.1:1080/

`$ /home/ldd/anaconda3/bin/conda install pandas=0.17.1

  environment variables:
                ALL_PROXY=<set>
                 CIO_TEST=<not set>
        CONDA_DEFAULT_ENV=base
                CONDA_EXE=/home/ldd/anaconda3/bin/conda
             CONDA_PREFIX=/home/ldd/anaconda3
    CONDA_PROMPT_MODIFIER=
         CONDA_PYTHON_EXE=/home/ldd/anaconda3/bin/python
               CONDA_ROOT=/home/ldd/anaconda3
              CONDA_SHLVL=1
            DEFAULTS_PATH=/usr/share/gconf/ubuntu.default.path
          LD_LIBRARY_PATH=/usr/local/cuda-9.0/lib64
           MANDATORY_PATH=/usr/share/gconf/ubuntu.mandatory.path
                 NO_PROXY=<set>
                     PATH=/home/ldd/anaconda3/bin:/home/ldd/bin:/home/ldd/.local/bin:/usr/loc
                          al/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/l
                          ocal/games:/snap/bin:/usr/local/cuda-9.0/bin
       REQUESTS_CA_BUNDLE=<not set>
            SSL_CERT_FILE=<not set>
            XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
         XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
                all_proxy=<set>
                 no_proxy=<set>
              socks_proxy=<set>

     active environment : base
    active env location : /home/ldd/anaconda3
            shell level : 1
       ldd config file : /home/ldd/.condarc
 populated config files : 
          conda version : 4.5.12
    conda-build version : 3.17.6
         python version : 3.7.1.final.0
       base environment : /home/ldd/anaconda3  (writable)
           channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/free/linux-64
                          https://repo.anaconda.com/pkgs/free/noarch
                          https://repo.anaconda.com/pkgs/r/linux-64
                          https://repo.anaconda.com/pkgs/r/noarch
                          https://repo.anaconda.com/pkgs/pro/linux-64
                          https://repo.anaconda.com/pkgs/pro/noarch
							
          package cache : /home/ldd/anaconda3/pkgs
                          /home/ldd/.conda/pkgs
       envs directories : /home/ldd/anaconda3/envs
                          /home/ldd/.conda/envs
               platform : linux-64
             ldd-agent : conda/4.5.12 requests/2.21.0 CPython/3.7.1 Linux/4.15.0-48-generic ubuntu/16.04 glibc/2.23
                UID:GID : 1000:1000
             netrc file : None
           offline mode : False


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