PureConfig ConfigLoader in Scala

Question

I am following this link to use pureconfig to load the data https://pureconfig.github.io/docs/overriding-behavior-for-case-classes.html. Here is my code

import com.typesafe.config.ConfigFactory
import pureconfig._
private case class SampleConf(foo: Int, bar: String)
object TestConfigLoad {
  def main(args: Array[String]): Unit = { 
    loadConfig[SampleConf](ConfigFactory.parseString("{ FOO: 2, BAR: two }"))
  }
}

When I run it , I am getting this error

Error:scalac: Error: scala.collection.immutable.$colon$colon.tl$1()Lscala/collection/immutable/List;
java.lang.NoSuchMethodError: scala.collection.immutable.$colon$colon.tl$1()Lscala/collection/immutable/List;
    at shapeless.LazyMacros$DerivationContext$State.addDependency(lazy.scala:363)

These are the entries in the pom file

        <dependency>
                <groupId>org.scala-lang</groupId>
                <artifactId>scala-library</artifactId>
                     <version>2.11.7</version>
                </dependency>
                <dependency>
                    <groupId>org.scala-tools</groupId>
                    <artifactId>maven-scala-plugin</artifactId>
                    <version>2.15.2</version>
                </dependency>
                <dependency>
                    <groupId>com.github.pureconfig</groupId>
                    <artifactId>pureconfig_2.11</artifactId>
                    <version>0.8.0</version>
                </dependency>
           <dependency>

            <groupId>org.clapper</groupId>
            <artifactId>grizzled-slf4j_2.11</artifactId>
            <version>1.3.3</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.9</version>
        </dependency>

        <dependency>
            <groupId>com.lihaoyi</groupId>
            <artifactId>sourcecode_2.11</artifactId>
            <version>0.1.4</version>
        </dependency>

have you tried `ConfigFactory.parseString("{ foo: 2, bar: two }")` (names are lowercase) — pme, May 27 '19 at 09:48

score 2 · Answer 1 · answered May 27 '19 at 09:06

2

You have to match the Scala versions. Cannot mix 2.10 (scala-library) and 2.11 (pureconfig_2.11).

Unless you have a good reason, use the latest stable version (2.12.8 currently)

answered May 27 '19 at 09:06

Thilo

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I tried using scala version 2.11.7. It gave the same error . I edited the pom above – Ayan Biswas May 27 '19 at 09:19
Do you have any other Scala dependencies in your pom.xml ? – Thilo May 27 '19 at 10:34
I have couple more dependencies. All of them are point to 2.11 – Ayan Biswas May 27 '19 at 10:43
Since pureConfig use Scala 2.11.11, while you use 2.11.7. Can you try 2.11.11? – Qingfei Yuan May 27 '19 at 15:09
I tried with scala 2.11.11 it did not work. Same error – Ayan Biswas May 27 '19 at 15:52
What version of shapeless is being pulled in? – Thilo May 28 '19 at 06:32

PureConfig ConfigLoader in Scala

1 Answers1