conda激活环境：CommandNotFoundError: Your shell has not been properly configured to use ‘conda activate‘

在Ubuntu18.04终端想激活一个conda虚拟环境时，输入命令conda activate gluon时出现错误提示：

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init 

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

但如果是用source activate gluon就能正常激活，反复几次之后发现每次重启终端都需要用source才能激活，用过source之后的同一个终端下才能用conda激活。

随后根据报错提示，重新配置conda的shell环境（本文用的是bash）：conda init bash

执行命令后：

tsy@tsy-OMEN-Laptop-15-ek0xxx:~$ conda init bash
no change     /home/tsy/anaconda3/condabin/conda
no change     /home/tsy/anaconda3/bin/conda
no change     /home/tsy/anaconda3/bin/conda-env
no change     /home/tsy/anaconda3/bin/activate
no change     /home/tsy/anaconda3/bin/deactivate
no change     /home/tsy/anaconda3/etc/profile.d/conda.sh
no change     /home/tsy/anaconda3/etc/fish/conf.d/conda.fish
no change     /home/tsy/anaconda3/shell/condabin/Conda.psm1
no change     /home/tsy/anaconda3/shell/condabin/conda-hook.ps1
no change     /home/tsy/anaconda3/lib/python3.6/site-packages/xontrib/conda.xsh
no change     /home/tsy/anaconda3/etc/profile.d/conda.csh
modified      /home/tsy/.bashrc

==> For changes to take effect, close and re-open your current shell. <==

重启终端后，默认环境会显示是base，然后再执行conda activate gluon就能正常激活啦！

(base) tsy@tsy-OMEN-Laptop-15-ek0xxx:~$ conda activate gluon
(gluon) tsy@tsy-OMEN-Laptop-15-ek0xxx:~$