PackageNotFoundError: Package not found: ‘‘ Package missing in current linux-64 channels

conda创建虚拟环境报错

conda create -n study python=3.8

Fetching package metadata …
Solving package specifications: .
PackageNotFoundError: Package not found: ‘’ Package missing in current linux-64 channels:

• python 3.8*

You can search for packages on anaconda.org with

anaconda search -t conda python
解决方法：

conda install --channel https://conda.anaconda.org/conda-forge msprime