neither quickstart or getting started guide exmple source is working

[gogo-boot]

What happened?

It's my first time to use gqlgen.

Following Quickstart Guide

/example ❯ go run server.go                                                                                                                   
# github.com/hashicorp/golang-lru/v2/simplelru
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/list.go:8:12: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/list.go:8:14: predeclared comparable requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/list.go:8:28: predeclared any requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/list.go:14:19: type instantiation requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/list.go:36:14: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/list.go:50:14: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/lru.go:8:20: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/lru.go:11:10: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/lru.go:19:13: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/lru_interface.go:5:15: type parameter requires go1.18 or later (-lang was set to go1.16; check go.mod)
../../../go/1.20.1/pkg/mod/github.com/hashicorp/golang-lru/v2@v2.0.1/simplelru/list.go:14:19: too many errors

I tried the getting started guide and cloned the https://github.com/vektah/gqlgen-tutorials Repo.
Following Getting started guide

gqlgen-tutorials/gettingstarted master !2 ❯ go run server.go                                                                                                                                              ✘ INT 16:09:59
go: github.com/99designs/gqlgen@v0.17.28 (replaced by ../../../99designs/gqlgen): reading ../../../99designs/gqlgen/go.mod: open /Users/jinwoowang/Project/99designs/gqlgen/go.mod: no such file or directory
go: github.com/99designs/gqlgen@v0.17.28 (replaced by ../../../99designs/gqlgen): reading ../../../99designs/gqlgen/go.mod: open /Users/jinwoowang/Project/99designs/gqlgen/go.mod: no such file or directory

My go version

example ❯ go version                                                                                                                            
go version go1.20.1 darwin/amd64

What did you expect?

it runs.

[mathieu-chauvet]

Same problem here, tried with 1.20.3, 1.19.1 and 1.18.4

[mathieu-chauvet]

This is actually explained in #2576
go mod tidy should be executed again after init

[gogo-boot]

This is actually explained in #2576 go mod tidy should be executed again after init

it works. thank you