ERROR conda.core.link:_execute(502): An error occurred while uninstalling package ‘defaults::conda-4

anaconda使用canda安装包时，报错如图：

Executing transaction: failed
ERROR conda.core.link:_execute(502): An error occurred while uninstalling package 'defaults::conda-4.5.11-py37_0'.
PermissionError(13, '拒绝访问。')
Attempting to roll back.

Rolling back transaction: done

PermissionError(13, '拒绝访问。')

解决方法：

以管理员方式进入conda，安装包(方法查找自贴吧)方法

成功解决如图。