Install does not work

[janisii]

Hello,

not able to install with go command. There is error on processors/servicenonoverlapper.go:70:8: implicit function instantiation requires go1.18 or later (-lang was set to go1.16; check go.mod).

Maybe this is related: 'go get' is no longer supported outside a module.

$ go install github.com/patrickbr/gtfstidy@latest
warning: GOPATH set to GOROOT (/root/go) has no effect
go: finding module for package github.com/paulmach/go.geojson
go: finding module for package github.com/patrickbr/gtfsparser
go: finding module for package github.com/patrickbr/gtfswriter
go: finding module for package github.com/patrickbr/gtfsparser/gtfs
go: finding module for package github.com/spf13/pflag
go: finding module for package golang.org/x/exp/slices
go: found github.com/patrickbr/gtfsparser in github.com/patrickbr/gtfsparser v0.0.0-20240911102057-fc74d7141f00
go: found github.com/patrickbr/gtfsparser/gtfs in github.com/patrickbr/gtfsparser v0.0.0-20240911102057-fc74d7141f00
go: found github.com/patrickbr/gtfswriter in github.com/patrickbr/gtfswriter v0.0.0-20240919073412-98e3602c6cd8
go: found github.com/paulmach/go.geojson in github.com/paulmach/go.geojson v1.5.0
go: found github.com/spf13/pflag in github.com/spf13/pflag v1.0.5
go: found golang.org/x/exp/slices in golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c
go: finding module for package github.com/valyala/fastjson/fastfloat
go: finding module for package github.com/klauspost/compress/zip
go: found github.com/klauspost/compress/zip in github.com/klauspost/compress v1.17.11
go: found github.com/valyala/fastjson/fastfloat in github.com/valyala/fastjson v1.6.4
# github.com/patrickbr/gtfstidy/processors
../pkg/mod/github.com/patrickbr/[email protected]/processors/servicenonoverlapper.go:70:8: implicit function instantiation requires go1.18 or later (-lang was set to go1.16; check go.mod)