import cycle not allowed

[hippolee]

I tried to build from source, used cmd in readme says

git clone https://github.com/FiloSottile/mkcert && cd mkcert
go build -ldflags "-X main.Version=$(git describe --tags)"

then
import cycle not allowed
package .
imports bytes
imports errors
imports internal/reflectlite
imports internal/unsafeheader
imports runtime
imports internal/bytealg
imports internal/cpu
imports runtime

What should I do?
my go version is ”go version go1.9.4 linux/amd64“

[FiloSottile]

Sorry, but Go 1.9 has been unsupported for years. It also looks like your installation is somehow corrupt.

If you install a recent version of Go from https://golang.org/dl then mkcert should build correctly.