Why isn't my function found in my server configuration?

Support
1

I’m trying to learn how to use Ktor, but I ran into a problem. When I try to do this in main :

val server = embeddedServer(Netty, port = 8080) {
    install(ContentNegotiation) {
        gson {
            setPrettyPrinting()
        }
    }
}

setPrettyPrinting() cannot be found. I have the io.ktor:ktor-gson dependency installed. What’s going on?

build.gradle.kts:

import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

plugins {
    kotlin("jvm") version "1.4.21"
    id("org.jetbrains.kotlin.plugin.serialization") version "1.4.21"
    id("application")
}

val kotlinVersion: String by extra
val ktorVersion: String by extra
val logbackVersion: String by extra
val kotlinSerialization: String by extra
val exposedVersion: String by extra
val h2Version: String by extra

group = "com.theonlytails.learnktor"
version = "1.0-SNAPSHOT"

repositories {
    jcenter()
    mavenCentral()
    maven(url = "https://kotlin.bintray.com/kotlinx")
}

dependencies {
    implementation("io.ktor:ktor-server-core:$ktorVersion")
    implementation("io.ktor:ktor-server-netty:$ktorVersion")

    implementation("ch.qos.logback:logback-classic:$logbackVersion")

    implementation("io.ktor:ktor-serialization:$ktorVersion")
    implementation("org.jetbrains.kotlinx:kotlinx-serialization-core:$kotlinSerialization")

    implementation("io.ktor:ktor-client-apache:$ktorVersion")
    implementation("io.ktor:ktor-gson:$ktorVersion")

    implementation("org.jetbrains.exposed:exposed:$exposedVersion")
    implementation("com.h2database:h2:$h2Version")

    testImplementation("io.ktor:ktor-server-tests:$ktorVersion")
}

tasks.withType<KotlinCompile>().configureEach {
    kotlinOptions.jvmTarget = "1.8"
}

application {
    mainClassName = "com.theonlytails.learnktor.ApplicationKt"
}

Application.kt:

package com.theonlytails.learnktor

import com.theonlytails.learnktor.routes.registerCustomerRoutes
import com.theonlytails.learnktor.routes.registerOrderRoutes
import io.ktor.application.install
import io.ktor.features.ContentNegotiation
import io.ktor.gson.gson
import io.ktor.server.engine.embeddedServer
import io.ktor.server.netty.EngineMain
import io.ktor.server.netty.Netty
import java.security.SecureRandom

fun main(args: Array<String>) {
    EngineMain.main(args)

    val secureRandom = SecureRandom()
    val booleanRandomizer = { secureRandom.nextBoolean() }

    val server = embeddedServer(Netty, port = 8080) {
        install(ContentNegotiation) {
            gson {
                setPrettyPrinting()
            }
        }

        registerCustomerRoutes()
        registerOrderRoutes()
    }
}

Note: I’m following this tutorial.Preformatted text

1 Like
2

It seems to have been magically solved.