Anaconda在激活环境时conda activate base报错的问题

REQUESTS_CA_BUNDLE=
SSL_CERT_FILE=

 active environment : base
active env location : /root/anaconda3
        shell level : 1
   user config file : /home/ct/.condarc

populated config files :
conda version : 4.12.0
conda-build version : not installed
python version : 3.10.4.final.0
virtual packages : __linux=5.13.0=0
__glibc=2.31=0
__unix=0=0
__archspec=1=x86_64
base environment : /root/anaconda3 (writable)
conda av data dir : /root/anaconda3/etc/conda
conda av metadata url : None
channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/linux-64
https://repo.anaconda.com/pkgs/r/noarch
package cache : /root/anaconda3/pkgs
/home/ct/.conda/pkgs
envs directories : /root/anaconda3/envs
/home/ct/.conda/envs
platform : linux-64
user-agent : conda/4.12.0 requests/2.27.1 CPython/3.10.4 Linux/5.13.0-40-generic ubuntu/20.04.4 glibc/2.31
UID:GID : 1005:1005
netrc file : None
offline mode : False
很多博主给出了使用source activate和source deactivate的方法，还有包括关闭VPN的方法。但不适用于上述的报错情况处理了很久才发现是镜像的问题，添加几个国内镜像就可以得到解决，下面以清华镜像为例

[C:~]$>conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/