Hi, I'm pretty new to Kotlin. I'm following the `e...

# graphql-kotlin

[Patrick Seafield]

Hi, I'm pretty new to Kotlin. I'm following the examples/server/ktor/ repo and trying to generate a schema for my ktor server, but I'm getting this error:

Caused by: com.expediagroup.graphql.generator.exceptions.InvalidPackagesException: The configured packages do not contain any valid classes: "[com.ppseafield, com.ppseafield.graphql]"

The com.ppseafield.graphql package contains a class UserService : Query {} . How can I make sure the SchemaGenerator sees my classes?

[Patrick Seafield]

Using graphql-kotlin-server and graphql-kotlin-schema-generator v6.2.2

[Dariusz Kuc]

does UserService contains any functions?

[Patrick Seafield]

class UserQuery : Query {
    @GraphQLDescription("Check if a username already exists.")
    fun usernameExists(username: String): Boolean {
        return false
    }
    fun motd(): String {
        return "howdy, folks!"
    }
}

[Patrick Seafield]

Sorry, I renamed it to UserQuery

[Patrick Seafield]

I've just tried using the gradle plugin to generate the schema, but it just exits with no output. (There's a brief flash of text.)

[Dariusz Kuc]

hard to say what is happening

[Dariusz Kuc]

do you have a github repo?

[Patrick Seafield]

Setting one up now, one moment

[Patrick Seafield]

https://github.com/ppseafield/quickroster

[Patrick Seafield]

Here's the full output when trying to run it:

https://gist.github.com/ppseafield/1a953fe93c086b8d1be431cd9b9af537

[Patrick Seafield]

Hmm, it does look like build/schema.graphql is being built correctly with the gradle plugin

[Patrick Seafield]

@Dariusz Kuc I eventually fixed it, although I wouldn't say I figured it out completely: Ktor's development mode watches classes for changes/recompiling. When I removed development = true from my configuration, I was able to run the server.

[Patrick Seafield]

Thanks for your help 🙂

[Dariusz Kuc]

👍

[Dariusz Kuc]

yeah unsure why dev = true would make classes unavailable on the classpath

[Patrick Seafield]

I'm not sure either. I'm very new to the java ecosystem. 🙂

[Dariusz Kuc]

you can check with #ktor folks maybe they can shed some light on it, not familiar with it so cannot say