Thanks, I installed hugo extended and also Go using:
sudo snap install --classic --channel=1.11/stable go
output error:
hugo server
Error: we found a go.mod file in your project, but you need to install Go to use it. See https://golang.org/dl/.: module "github.com/wowchemy/wowchemy-hugo-modules/wowchemy" not found; either add it as a Hugo Module or store it in "/home/abolfazl/git/WEB/ziaeemehr/themes".: module does not exist
ziaeemehr git:(master) go version
go version go1.15.2 linux/amd64
I also found this answer that snap installation has problem.