conda安装包遇到问题An unexpected error has occurred. Conda has prepared the above report.

之前还没问题，现在就 

(base) C:\Users\wei>conda activate tensoflow1

(tensoflow1) C:\Users\wei>conda install seaborn
Collecting package metadata (repodata.json): failed

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

    Traceback (most recent call last):
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 263, in _load
        repodata_fn=self.repodata_fn)
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 613, in fetch_repodata_remote_request
        raise Response304ContentUnchanged()
    conda.core.subdir_data.Response304ContentUnchanged

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "F:\Anaconda3\lib\site-packages\conda\exceptions.py", line 1079, in __call__
        return func(*args, **kwargs)
      File "F:\Anaconda3\lib\site-packages\conda\cli\main.py", line 84, in _main
        exit_code = do_call(args, p)
      File "F:\Anaconda3\lib\site-packages\conda\cli\conda_argparse.py", line 83, in do_call
        return getattr(module, func_name)(args, parser)
      File "F:\Anaconda3\lib\site-packages\conda\cli\main_install.py", line 20, in execute
        install(args, parser, 'install')
      File "F:\Anaconda3\lib\site-packages\conda\cli\install.py", line 265, in install
        should_retry_solve=(_should_retry_unfrozen or repodata_fn != repodata_fns[-1]),
      File "F:\Anaconda3\lib\site-packages\conda\core\solve.py", line 117, in solve_for_transaction
        should_retry_solve)
      File "F:\Anaconda3\lib\site-packages\conda\core\solve.py", line 158, in solve_for_diff
        force_remove, should_retry_solve)
      File "F:\Anaconda3\lib\site-packages\conda\core\solve.py", line 262, in solve_final_state
        ssc = self._collect_all_metadata(ssc)
      File "F:\Anaconda3\lib\site-packages\conda\common\io.py", line 88, in decorated
        return f(*args, **kwds)
      File "F:\Anaconda3\lib\site-packages\conda\core\solve.py", line 425, in _collect_all_metadata
        index, r = self._prepare(prepared_specs)
      File "F:\Anaconda3\lib\site-packages\conda\core\solve.py", line 1021, in _prepare
        self.subdirs, prepared_specs, self._repodata_fn)
      File "F:\Anaconda3\lib\site-packages\conda\core\index.py", line 277, in get_reduced_index
        repodata_fn=repodata_fn)
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 120, in query_all
        result = tuple(concat(executor.map(subdir_query, channel_urls)))
      File "F:\Anaconda3\lib\concurrent\futures\_base.py", line 586, in result_iterator
        yield fs.pop().result()
      File "F:\Anaconda3\lib\concurrent\futures\_base.py", line 425, in result
        return self.__get_result()
      File "F:\Anaconda3\lib\concurrent\futures\_base.py", line 384, in __get_result
        raise self._exception
      File "F:\Anaconda3\lib\concurrent\futures\thread.py", line 57, in run
        result = self.fn(*self.args, **self.kwargs)
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 113, in <lambda>
        package_ref_or_match_spec))
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 125, in query
        self.load()
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 189, in load
        _internal_state = self._load()
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 278, in _load
        mod_etag_headers.get('_mod'))
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 326, in _read_local_repdata
        _internal_state = self._process_raw_repodata_str(raw_repodata_str)
      File "F:\Anaconda3\lib\site-packages\conda\core\subdir_data.py", line 364, in _process_raw_repodata_str
        json_obj = json.loads(raw_repodata_str or '{}')
      File "F:\Anaconda3\lib\json\__init__.py", line 348, in loads
        return _default_decoder.decode(s)
      File "F:\Anaconda3\lib\json\decoder.py", line 337, in decode
        obj, end = self.raw_decode(s, idx=_w(s, 0).end())
      File "F:\Anaconda3\lib\json\decoder.py", line 353, in raw_decode
        obj, end = self.scan_once(s, idx)
    json.decoder.JSONDecodeError: Unterminated string starting at: line 1138238 column 5 (char 33158069)

`$ F:\Anaconda3\Scripts\conda-script.py install seaborn`

  environment variables:
                 CIO_TEST=<not set>
                CLASSPATH=.;C:\Program Files (x86)\Java\jdk1.8.0_171\lib\dt.jar;C:\Program Files
                          (x86)\Java\jdk1.8.0_171\lib\tools.jar;%TOMCAT HOME%\BIN
        CONDA_DEFAULT_ENV=tensoflow1
                CONDA_EXE=F:\Anaconda3\condabin\..\Scripts\conda.exe
               CONDA_EXES="F:\Anaconda3\condabin\..\Scripts\conda.exe"
             CONDA_PREFIX=F:\Anaconda3\envs\tensoflow1
           CONDA_PREFIX_1=F:\Anaconda3
    CONDA_PROMPT_MODIFIER=(tensoflow1)
         CONDA_PYTHON_EXE=F:\Anaconda3\python.exe
               CONDA_ROOT=F:\Anaconda3
              CONDA_SHLVL=2
           CURL_CA_BUNDLE=<not set>
                 HOMEPATH=\Users\wei
                     PATH=F:\Anaconda3;F:\Anaconda3\Library\mingw-w64\bin;F:\Anaconda3\Library\u
                          sr\bin;F:\Anaconda3\Library\bin;F:\Anaconda3\Scripts;F:\Anaconda3\bin;
                          F:\Anaconda3\envs\tensoflow1;F:\Anaconda3\envs\tensoflow1\Library\ming
                          w-w64\bin;F:\Anaconda3\envs\tensoflow1\Library\usr\bin;F:\Anaconda3\en
                          vs\tensoflow1\Library\bin;F:\Anaconda3\envs\tensoflow1\Scripts;F:\Anac
                          onda3\envs\tensoflow1\bin;F:\Anaconda3\condabin;F:\Anaconda3\Library\m
                          ingw-w64\bin;F:\Anaconda3\Scripts;F:\Anaconda3\Library\bin;F:\Anaconda
                          3;C:\ProgramData\Oracle\Java\javapath;C:\Program Files
                          (x86)\Java\jdk1.8.0_171\bin;C:\Program Files (x86)\Java\jdk1.8.0_171\j
                          re\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WIND
                          OWS\System32\WindowsPowerShell\v1.0;D:\Program Files
                          (x86)\100\Tools\Binn;D:\100\Tools\Binn;D:\100\DTS\Binn;D:\Program
                          Files (x86)\100\Tools\Binn\VSShell\Common7\IDE;C:\Program Files
                          (x86)\Microsoft Visual Studio
                          9.0\Common7\IDE\PrivateAssemblies;D:\Program Files (x86)\100\DTS\Binn;
                          C:\WINDOWS\System32\OpenSSE:\mysql-8.0.15-winx64\bin;E:\work\Python64\
                          graphviz-2.38\bin;C:\WINDOWS\System32\OpenSSH;C:\Program
                          Files\Microsoft SQL Server\130\Tools\Binn;E:\work\soft\MinGw\bin;E:\da
                          ta\texlive\2020\bin\win32;E:\work\Python64\Scripts;E:\work\Python64;F:
                          \su\soft\MATLAB\R2016b\runtime\win64;F:\su\soft\MATLAB\R2016b\bin;F:\s
                          u\soft\MATLAB\R2016b\polyspace\bin;C:\Users\wei\AppData\Local\Continuu
                          m\anaconda3\Library\bin;F:\su\soft\chromedriver_win32;F:\Anaconda3;F:\
                          Anaconda3\Library\mingw-w64\bin;F:\Anaconda3\Library\usr\bin;F:\Anacon
                          da3\Library\bin;F:\Anaconda3\Scripts;E:\work\Scripts;E:\work;C:\Users\
                          wei\AppData\Local\Microsoft\WindowsApps;E:\mysql-8.0.15-winx64\bin;D:\
                          鐎瑰顥婇崠鍖糓icrosoft VS Code\Microsoft VS
                          Code\bin;E:\work\Python64;E:\work\Python64\Scripts;.
             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 : tensoflow1
    active env location : F:\Anaconda3\envs\tensoflow1
            shell level : 2
       user config file : C:\Users\wei\.condarc
 populated config files : C:\Users\wei\.condarc
          conda version : 4.9.2
    conda-build version : 3.15.1
         python version : 3.7.0.final.0
       virtual packages : __win=0=0
                          __archspec=1=x86_64
       base environment : F:\Anaconda3  (writable)
           channel URLs : 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
          package cache : F:\Anaconda3\pkgs
                          C:\Users\wei\.conda\pkgs
                          C:\Users\wei\AppData\Local\conda\conda\pkgs
       envs directories : F:\Anaconda3\envs
                          C:\Users\wei\.conda\envs
                          C:\Users\wei\AppData\Local\conda\conda\envs
               platform : win-64
             user-agent : conda/4.9.2 requests/2.19.1 CPython/3.7.0 Windows/10 Windows/10.0.19041
          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.
Would you like conda to send this report to the core maintainers?

pip可以下载，

甚至一度怀疑是不是conda里不可以下载这个包，去搜了一下别人是可以的

解决方法：

conda clean -i