anaconda管理员Anaconda Prompt后安装任何库度显示错误，怎么回事，有什么解决办法，下面是错误信息

Question

(base) C:\Windows\system32>conda install pymysql
Solving environment: failed

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

Traceback (most recent call last):
File "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 202, in _load
mod_etag_headers.get('_mod'))
File "D:\Anaconda3\lib\site-packages\conda\core\repodata.py", line 408, in fetch_repodata_remote_request
raise Response304ContentUnchanged()
conda.core.repodata.Response304ContentUnchanged

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:\Anaconda3\lib\site-packages\conda\exceptions.py", line 789, in __call__
return func(*args, **kwargs)
File "D:\Anaconda3\lib\site-packages\conda\cli\main.py", line 78, in _main
exit_code = do_call(args, p)
File "D:\Anaconda3\lib\site-packages\conda\cli\conda_argparse.py", line 77, in do_call
exit_code = getattr(module, func_name)(args, parser)
File "D:\Anaconda3\lib\site-packages\conda\cli\main_install.py", line 11, in execute
install(args, parser, 'install')
File "D:\Anaconda3\lib\site-packages\conda\cli\install.py", line 236, in install
force_reinstall=context.force,
File "D:\Anaconda3\lib\site-packages\conda\core\solve.py", line 504, in solve_for_transaction
force_remove, force_reinstall)
File "D:\Anaconda3\lib\site-packages\conda\core\solve.py", line 437, in solve_for_diff
final_precs = self.solve_final_state(deps_modifier, prune, ignore_pinned, force_remove)
File "D:\Anaconda3\lib\site-packages\conda\core\solve.py", line 178, in solve_final_state
index, r = self._prepare(prepared_specs)
File "D:\Anaconda3\lib\site-packages\conda\core\solve.py", line 560, in _prepare
self.subdirs, prepared_specs)
File "D:\Anaconda3\lib\site-packages\conda\core\index.py", line 213, in get_reduced_index
new_records = query_all(spec)
File "D:\Anaconda3\lib\site-packages\conda\core\index.py", line 186, in query_all
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]:

Answer 1

查了下，先执行下面命令试试：

conda update conda

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