conda install 报Segmentation faul

使用conda安装包，进程被终止，报出：

The environment is inconsistent, please check the package plan carefully
The following packages are causing the inconsistency:

  - defaults/osx-64::dask==0.19.1=py37_0
  ...
  
done
Segmentation fault: 11

解决办法参考：The environment is inconsistent, please check the package plan carefully

$ conda activate base
$ conda install anaconda
$ conda update --all