Stuck on the GraphQL meets REST, with Apollo Connectors tutorial

Hi there,

I’m brand new to ApolloGraphQL.

I’m getting the error below. Everything else has gone well with the project setup. I’m a Mac/Linux person, but for various reasons, I have to do this on a Windows machine. I’ve turned off the firewall temporarily, but this error persists. I’m not sure what else to try. Can anyone help?

PS C:\WINDOWS\system32> rover dev --supergraph-config supergraph.yaml
what URL is your subgraph running on?: http://localhost:4000
what is the name of this subgraph?: Odyssey Airlock
error: Error occurred when composing supergraph
Error resolving subgraphs:
Unable to resolve subgraphs.
Odyssey Airlock: Failed to introspect the subgraph “Odyssey Airlock”: Upstream service error: Unexpected(reqwest::Error { kind: Request, url: “http://localhost:4000/”, source: hyper_util::client::legacy::Error(Connect, ConnectError(“tcp connect error”, 127.0.0.1:4000, Os { code: 10061, kind: ConnectionRefused, message: “No connection could be made because the target machine actively refused it.” })) })
error: Composition Events Stream closed before supergraph schema could successfully compose

sorted it. I was just rusty in my knowledge, and it has returned.