一、问题描述

(base) C:\Users\Hasee>conda create -n opencv123 python=3.7
Collecting package metadata (current_repodata.json): failed

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

    Traceback (most recent call last):
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\subdir_data.py", line 531, in fetch_repodata_remote_request
        resp.raise_for_status()
      File "D:\Users\Hasee\anaconda3\lib\site-packages\requests\models.py", line 1021, in raise_for_status
        raise HTTPError(http_error_msg, response=self)
    requests.exceptions.HTTPError: 404 Client Error: Not Found for url: http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch/current_repodata.json

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "D:\Users\Hasee\anaconda3\lib\site-packages\requests\models.py", line 971, in json
        return complexjson.loads(self.text, **kwargs)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\simplejson\__init__.py", line 525, in loads
        return _default_decoder.decode(s)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\simplejson\decoder.py", line 370, in decode
        obj, end = self.raw_decode(s)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\simplejson\decoder.py", line 400, in raw_decode
        return self.scan_once(s, idx=_w(s, idx).end())
    simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\exceptions.py", line 1129, in __call__
        return func(*args, **kwargs)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\cli\main.py", line 86, in main_subshell
        exit_code = do_call(args, p)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\cli\conda_argparse.py", line 93, in do_call
        return getattr(module, func_name)(args, parser)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\notices\core.py", line 72, in wrapper
        return_value = func(*args, **kwargs)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\cli\main_create.py", line 43, in execute
        install(args, parser, 'create')
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\cli\install.py", line 261, in install
        unlink_link_transaction = solver.solve_for_transaction(
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\solve.py", line 156, in solve_for_transaction
        unlink_precs, link_precs = self.solve_for_diff(update_modifier, deps_modifier,
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\solve.py", line 199, in solve_for_diff
        final_precs = self.solve_final_state(update_modifier, deps_modifier, prune, ignore_pinned,
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\solve.py", line 304, in solve_final_state
        ssc = self._collect_all_metadata(ssc)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\common\io.py", line 86, in decorated
        return f(*args, **kwds)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\solve.py", line 467, in _collect_all_metadata
        index, r = self._prepare(prepared_specs)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\solve.py", line 1061, in _prepare
        reduced_index = get_reduced_index(self.prefix, self.channels,
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\index.py", line 301, in get_reduced_index
        new_records = SubdirData.query_all(spec, channels=channels, subdirs=subdirs,
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\subdir_data.py", line 137, in query_all
        result = tuple(concat(executor.map(subdir_query, channel_urls)))
      File "D:\Users\Hasee\anaconda3\lib\concurrent\futures\_base.py", line 609, in result_iterator
        yield fs.pop().result()
      File "D:\Users\Hasee\anaconda3\lib\concurrent\futures\_base.py", line 439, in result
        return self.__get_result()
      File "D:\Users\Hasee\anaconda3\lib\concurrent\futures\_base.py", line 391, in __get_result
        raise self._exception
      File "D:\Users\Hasee\anaconda3\lib\concurrent\futures\thread.py", line 58, in run
        result = self.fn(*self.args, **self.kwargs)
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\subdir_data.py", line 129, in <lambda>
        subdir_query = lambda url: tuple(SubdirData(Channel(url), repodata_fn=repodata_fn).query(
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\subdir_data.py", line 142, in query
        self.load()
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\subdir_data.py", line 207, in load
        _internal_state = self._load()
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\subdir_data.py", line 277, in _load
        raw_repodata_str = fetch_repodata_remote_request(
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\core\subdir_data.py", line 587, in fetch_repodata_remote_request
        raise UnavailableInvalidChannel(
      File "D:\Users\Hasee\anaconda3\lib\site-packages\conda\exceptions.py", line 464, in __init__
        body = response.json()
      File "D:\Users\Hasee\anaconda3\lib\site-packages\requests\models.py", line 975, in json
        raise RequestsJSONDecodeError(e.msg, e.doc, e.pos)
    requests.exceptions.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

`$ D:\Users\Hasee\anaconda3\Scripts\conda-script.py create -n opencv123 python=3.7`

  environment variables:
                 CIO_TEST=<not set>
        CONDA_DEFAULT_ENV=base
                CONDA_EXE=D:\Users\Hasee\anaconda3\condabin\..\Scripts\conda.exe
               CONDA_EXES="D:\Users\Hasee\anaconda3\condabin\..\Scripts\conda.exe"
             CONDA_PREFIX=D:\Users\Hasee\anaconda3
    CONDA_PROMPT_MODIFIER=(base)
         CONDA_PYTHON_EXE=D:\Users\Hasee\anaconda3\python.exe
               CONDA_ROOT=D:\Users\Hasee\anaconda3
              CONDA_SHLVL=1
                CUDA_PATH=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.6
           CURL_CA_BUNDLE=<not set>
     GENICAM_GENTL32_PATH=C:\Program Files (x86)\Basler\ToF\bin\Win32\
     GENICAM_GENTL64_PATH=C:\Program Files\Basler\ToF\bin\x64\
                 HOMEPATH=\Users\Hasee
          NVTOOLSEXT_PATH=C:\Program Files\NVIDIA Corporation\NvToolsExt\
                     PATH=D:\Users\Hasee\anaconda3;D:\Users\Hasee\anaconda3\Library\mingw-w64\bi
                          n;D:\Users\Hasee\anaconda3\Library\usr\bin;D:\Users\Hasee\anaconda3\Li
                          brary\bin;D:\Users\Hasee\anaconda3\Scripts;D:\Users\Hasee\anaconda3\bi
                          n;D:\Users\Hasee\anaconda3\condabin;C:\Program
                          Files\Basler\ToF\bin\x64;C:\Program Files
                          (x86)\Basler\ToF\bin\Win32;C:\Program Files\NVIDIA GPU Computing
                          Toolkit\CUDA\v11.6\bin;C:\Program Files\NVIDIA GPU Computing
                          Toolkit\CUDA\v11.6\libnvvp;C:\Program Files\Microsoft
                          MPI\Bin;C:\WINDOWS\System32\WindowsPowerShell\v1.0;D:\Program
                          Files(x86)\python安装\Scripts;D:\;rogram Files(x86)\python安装;C:\;INDOWS\
                          system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\OpenS
                          SH;C:\Program Files\Common Files\Autodesk Shared;C:\Program
                          Files\NVIDIA Corporation\Nsight Compute 2022.1.0;C:\Program Files
                          (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA
                          Corporation\NVIDIA NvDLISR;C:\Program
                          Files\Basler\ToF\bin\x64;C:\Program Files (x86)\Basler\ToF\bin\Win32;D
                          :\Users\Hasee\anaconda3;D:\Users\Hasee\anaconda3\Library\mingw-w64\bin
                          ;D:\Users\Hasee\anaconda3\Library\usr\bin;D:\Users\Hasee\anaconda3\Lib
                          rary\bin;D:\Users\Hasee\anaconda3\Scripts;C:\Users\Hasee\AppData\Local
                          \Microsoft\WindowsApps;D:\Program Files\Bandizip;D:\Program
                          Files\JetBrains\PyCharm 2020.1.1\bin;D:\Users\Hasee\Microsoft VS
                          Code\bin;D:\Program Files\Git\bin;.
             PSMODULEPATH=C:\Program Files\WindowsPowerShell\Modules;C:\WINDOWS\system32\Windows
                          PowerShell\v1.0\Modules
       REQUESTS_CA_BUNDLE=<not set>
            SSL_CERT_FILE=<not set>

     active environment : base
    active env location : D:\Users\Hasee\anaconda3
            shell level : 1
       user config file : C:\Users\Hasee\.condarc
 populated config files : C:\Users\Hasee\.condarc
          conda version : 22.9.0
    conda-build version : 3.21.8
         python version : 3.9.12.final.0
       virtual packages : __cuda=11.6=0
                          __win=0=0
                          __archspec=1=x86_64
       base environment : D:\Users\Hasee\anaconda3  (writable)
      conda av data dir : D:\Users\Hasee\anaconda3\etc\conda
  conda av metadata url : None
           channel URLs : http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/win-64
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/noarch
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/win-64
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/noarch
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/win-64
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/noarch
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64
                          http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
          package cache : D:\Users\Hasee\anaconda3\pkgs
                          C:\Users\Hasee\.conda\pkgs
                          C:\Users\Hasee\AppData\Local\conda\conda\pkgs
       envs directories : D:\Users\Hasee\anaconda3\envs
                          C:\Users\Hasee\.conda\envs
                          C:\Users\Hasee\AppData\Local\conda\conda\envs
               platform : win-64
             user-agent : conda/22.9.0 requests/2.28.1 CPython/3.9.12 Windows/10 Windows/10.0.19043
          administrator : False
             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.

二、解决方法：

conda config --remove-key channels