mamba UnicodeEncodeError

mamba装包报错：UnicodeEncodeError: 'gbk' codec can't encode character '\xf6' in position 8: illegal multibyte sequence
critical libmamba could not load prefix data

command prompt 执行 set PYTHONUTF8=1 即可。我在想如果是python的编码问题，不知为何conda没报过这个错。