Can't build tutorial from the website

[arjanvaneersel]

I'm at the very first step of the website's tutorial and end up getting an error when trying to build:

# github.com/libp2p/go-libp2p/p2p/host/basic
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/basic_host.go:131:32: cannot use h (type *BasicHost) as type host.Host in argument to identify.NewIDService:
        *BasicHost does not implement host.Host (missing EventBus method)
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/basic_host.go:158:32: cannot use h (type *BasicHost) as type host.Host in argument to ping.NewPingService:
        *BasicHost does not implement host.Host (missing EventBus method)
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/basic_host.go:512:28: h.natmgr.NAT().ExternalAddrs undefined (type *"github.com/libp2p/go-libp2p-nat".NAT has no field or method ExternalAddrs)
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/natmgr.go:94:8: assignment mismatch: 1 variable but "github.com/libp2p/go-libp2p-nat".DiscoverNAT returns 2 values
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/natmgr.go:94:26: not enough arguments in call to "github.com/libp2p/go-libp2p-nat".DiscoverNAT
        have ()
        want (context.Context)
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/natmgr.go:154:13: mapping.InternalAddr undefined (type "github.com/libp2p/go-libp2p-nat".Mapping has no field or method InternalAddr)
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/natmgr.go:176:26: not enough arguments in call to nat.NewMapping
        have (multiaddr.Multiaddr)
        want (string, int)
../../../../pkg/mod/github.com/libp2p/go-libp2p@v6.0.23+incompatible/p2p/host/basic/natmgr.go:206:13: mapping.InternalAddr undefined (type "github.com/libp2p/go-libp2p-nat".Mapping has no field or method InternalAddr)

I'm using go 1.13.

[raulk]

Hello! This is due to go 1.13 defaulting to proxy all module requests via proxy.golang.org. Unfortunately the proxy serves old +incompatible versions of go-libp2p, and the go toolchain selects those over the succeeding versions that are compatible with Go Modules.

Could you try the updated instructions in this PR? #731. Delete all require directives from your go.mod before attempting this, to start from scratch.