When I using `go install`, it returns not a main package

I used import "github.com/go-redis/redis/v8" in my code. The environment is go1.17.2 Windows AMD64. I executed go install github.com/go-redis/redis/v8@latest, but the result is package github.com/go-redis/redis/v8 is not a main package. What's wrong of my operations or the config of environment. go env GO111MODULE=on.

And when I execute go run main.go, it shows cannot find package at the line of import github.com/go-redis/redis/v8.

Content in go.mod, (with simple go mod init & go mod tidy):

module ...
go 1.17

require github.com/go-redis/redis/v8 v8.11.4

require (
	github.com/cespare/xxhash/v2 v2.1.2 // indirect
	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
)

The module name of your go.mod is invalid. I try the similar module name in my environment and compile with go build, it reports:

$ go build
go: malformed module path "...": invalid path element "..."

Try a name like:

module tempredis
go 1.17

require github.com/go-redis/redis/v8 v8.11.4

Or create the module with command go mod init tempredis then add a dependency of github.com/go-redis/redis/v8.

Refer to document.

I use import "github.com/go-redis/redis", and restart the process (include go mod init, go mod tidy, go install), it shows right result finally. But the version of go redis changes to v6.15.9+incompatible in go.mod file automatedly.