Why does it ask for GOROOT, although it is written in Path?

Question

go

I want to try Go, downloaded from off. site, installed.
wrote helloworld and tried to run go run hello.go from the console
Got:

go: open C:\Go\src\runtime\internal\sys\zversion.go: The system cannot find the file specified.

Installed ide from jetbrains for Go - writes "GOROOT is not defined"
Although GOROOT is registered in Path and the path to the installed Go folder is set
If I write go version on the command line, then it normally unsubscribes the version
Maybe someone came across, tell me what to do in this case?

Answer 1

https://habrahabr.ru/post/249545/
prescribe GOPATH

Answer 2

The SDK is the path where the sources of Go itself lie. This is where GOROOT should lead.