Error: No packages found in current win-32 channels matching: imageio

[jbansal1510]

I am trying on windows conda env create --name pnet_env --file=environment.yml and getting this error

Using Anaconda Cloud api site https://api.anaconda.org
Fetching package metadata: ....
Error: No packages found in current win-32 channels matching: imageio

when I am using same versions as mentioned in yml file, it is giving error of package version not found error.
conda env create --name pnet_env --file=environment.yml
Using Anaconda Cloud api site https://api.anaconda.org
Using Anaconda Cloud api site https://api.anaconda.org
Fetching package metadata: ..........
Error: No packages found in current win-32 channels matching: pip 18.1*