Hi all, I’m using `ApolloJsonParser.parseJsonResponse()` to create mock data from Json for Compose P...

# apollo-kotlin

[goku]

Hi all, I’m using ApolloJsonParser.parseJsonResponse() to create mock data from Json for Compose Previews and I’m getting this error. Has anyone experienced this?
TIA

java.lang.NoSuchFieldError: Companion
	at com.apollographql.apollo3.api.json.BufferedSourceJsonReader.<clinit>(BufferedSourceJsonReader.kt:855)

[bod]

hmm it doesn't ring a bell, but looks like proguard/r8 issue? Which version of Apollo Kotlin are you on?

[goku]

The app builds/works fine. This happens for Previews in Compose. v3.8.1

I’ve seen this error being reported on Github and it was caused by version conflict between Okhttp I believe. But the problem here is that it works fine when you run the project but fails in the Preview window.

[bod]

Oooh specific to previews hmmm. I just tried in the Apollo tutorial, and it seems to work for me (Apollo v3.8.2, Android Studio 2022.2.1 Flamingo). Are you doing something similar to this?

@Preview
@Composable
private fun LaunchDetailsPreview() {
    LaunchDetails(
        LaunchDetailsQuery("42").parseJsonResponse("{some json}").data!!,
    )
}

[goku]

Yes similar. Interesting

[mbonnin]

I've seen stuff like this, like here for an example

[mbonnin]

That was an old version of okio

[mbonnin]

ApolloJsonParser

Can you double check this @goku? I don't think we have a ApolloJsonParser in 3.8.1

[bod]

Not sure exactly how the classpath for Previews is assembled but I would look at ./gradlew :app:dependencies and ./gradlew :app:buildEnvironment to see what version(s) of Okio you may have - the one coming from Apollo should be 3.2.0.