I can not install the geopandas module

[Pooran khedri]

Hello

I had installed the latest version of Anaconda, and I tried to install the geopandas module.  I have faced with the following error. 

Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.

Any suggestion to fix it would be appreciated. 

cheers,

Pooran