When I run `conda install django`, I get the following error:

> 
> Solving environment: done
> 
> 
> ==> WARNING: A newer version of conda exists. <== 
> 
> 
> current version: 4.4.10 
> 
> 
> latest version: 4.4.11
> 
> 
> Please update conda by running
> 
> 
> 
> ```
> $ conda update -n base conda
> 
> ```
> 
> ## Package Plan ##
> 
> 
> environment location: /opt/anaconda/anaconda3
> 
> 
> added / updated specs: 
>  - django
> 
> 
> The following NEW packages will be INSTALLED:
> 
> 
> 
> ```
> django: 2.0.2-py36hd476221_0
> 
> ```
> 
> Proceed ([y]/n)? y
> 
> 
> Preparing transaction: done
> 
> 
> Verifying transaction: done
> 
> 
> Executing transaction: failed
> 
> 
> ERROR conda.core.link:\_execute(481): An error
>  occurred while installing package
>  'defaults::django-2.0.2-py36hd476221\_0'. PermissionError(13,
>  'Permission denied') Attempting to roll back.
> 
> 
> Rolling back transaction: done
> 
> 
> PermissionError(13, 'Permission denied')
> 
> 
> 

What should I do?