anaconda创建虚拟环境失败如何解决

刚接触WSL，要在ubuntu里安装python，但在anaconda创建虚拟环境遇到报错，报错代码如下

(base) C:\Users\lenovo>conda create -n nlp python=3.7.4
Collecting package metadata (current_repodata.json): done
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed

PackagesNotFoundError: The following packages are not available from current channels:

• python=3.7.4

Current channels:

• http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64
• http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

https://anaconda.org

and use the search bar at the top of the page.

我连创建都无法创建更别说激活了，希望大家能指点迷津，十分谢谢！