anaconda3更新包失败

谁能帮我看看怎么回事吗“
问题遇到的现象和发生背景
问题相关代码，请勿粘贴截图

查看配置信息输入命令：conda config –show
显示如下信息：
add_anaconda_token: True
add_pip_as_python_dependency: True
allow_softlinks: True
always_copy: False
always_softlink: False
always_yes: False
auto_update_conda: True
binstar_upload: None
changeps1: True
channel_alias: https://conda.anaconda.org/
channel_priority: True
channels:

https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
defaults
client_ssl_cert:
client_ssl_cert_key:
create_default_packages: []
debug: False
default_channels:
https://repo.continuum.io/pkgs/free
https://repo.continuum.io/pkgs/r
https://repo.continuum.io/pkgs/pro
https://repo.continuum.io/pkgs/msys2
disallow: []
envs_dirs:
C:\Anaconda3\envs
C:\Users\surpass\AppData\Local\conda\conda\envs
C:\Users\surpass.conda\envs
json: False
offline: False
proxy_servers: {}
quiet: False
shortcuts: True
show_channel_urls: True
ssl_verify: True
track_features: []
update_dependencies: True
use_pip: True
verbosity: 0

输入命令： conda - -help //找到配置文件.condarc的路径，将上述显示的配置信息中-defaults所在行删除保存即可

显示信息如下：
Options:

positional arguments:
command
info Display information about current conda install.
help Displays a list of available conda commands and their help
strings.
list List linked packages in a conda environment.
search Search for packages and display their information. The input
is a Python regular expression. To perform a search with a
search string that starts with a -, separate the search from
the options with –, like ‘conda search – -h’. A * in the
results means that package is installed in the current
environment. A . means that package is not installed but is
cached in the pkgs directory.
create Create a new conda environment from a list of specified
packages.
install Installs a list of packages into a specified conda
environment.
update Updates conda packages to the latest compatible version. This
command accepts a list of package names and updates them to
the latest versions that are compatible with all other
packages in the environment. Conda attempts to install the
newest versions of the requested packages. To accomplish
this, it may update some packages that are already installed,
or install additional packages. To prevent existing packages
from updating, use the –no-update-deps option. This may
force conda to install older versions of the requested
packages, and it does not prevent additional dependency
packages from being installed. If you wish to skip dependency
checking altogether, use the ‘–force’ option. This may
result in an environment with incompatible packages, so this
option must be used with great caution.
upgrade Alias for conda update. See conda update –help.
remove Remove a list of packages from a specified conda environment.
uninstall Alias for conda remove. See conda remove –help.
config Modify configuration values in .condarc. This is modeled
after the git config command. Writes to the user .condarc
file (C:\Users\Administrator.condarc)by default.
clean Remove unused packages and caches.
package Low-level conda package utility. (EXPERIMENTAL)

在上面显示信息中找到config那一行，其告诉了你的.condarc文件的路径，用记事本打开并删除-defaults那一行即可。

可正常使用：