welcome in the forum!
I have seen this error before and in my case was not related to the environment I was creating. In fact the only way I could get rid of this was by reintalling my conda.
You can back up all you renvirmnments and then put them back in the correct location (assuming you keep them in '$HOME/anaconda/env'). so you wont loose them.
Let see if other people have other suggestion they can offer.