Conda does not work with fish

[eleanorjboyd]

When I activate a conda env and start a fish terminal I see

~/miniconda3/bin/activate (line 2): Unsupported use of '='. In fish, please use 'set _CONDA_ROOT "/root/miniconda3"'.
_CONDA_ROOT="/root/miniconda3"
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
from sourcing file ~/miniconda3/bin/activate
source: Error while reading file '/root/miniconda3/bin/activate'

I have run conda init --all, searched on web for every answer but just no one help. Please help, thanks a lot.

copied over from: microsoft/vscode-python#25727