CODEWITHSUNDEEP
scalaintellij-idea
Alan
Alan

Reputation: 33

Intellij Scala library dependency not found

I am new to Scala & IntelliJ. I am trying to write a JSON program but it has compile errors below. I am using json4s-core_2.9.1-3.0.0.

Error:(37, 14) Class com.fasterxml.jackson.core.JsonParseException not found - continuing with a stub. Error:(37, 14) Class com.fasterxml.jackson.core.JsonProcessingException not found - continuing with a stub. Error:(37, 14) Class com.fasterxml.jackson.core.JsonGenerationException not found - continuing with a stub.

In my set file, I have:

scalaVersion := "2.12.4"

libraryDependencies += "org.json4s" %% "json4s-jackson" % "{latestVersion}"

libraryDependencies += "com.fasterxml.jackson.core" % "jackson.core" % "{latestVersion}"
libraryDependencies += "com.fasterxml.jackson.core" % "JsonParseException" % "{latestVersion}"
libraryDependencies += "com.fasterxml.jackson.core" % "JsonProcessingException" % "{latestVersion}"
libraryDependencies += "com.fasterxml.jackson.core" % "JsonGenerationException" % "{latestVersion}"

What could go wrong? Any idea is appreciated. Thank you!

Upvotes: 0

Views: 1440

Answers (1)

davidrpugh
davidrpugh

Reputation: 4583

json4s-core_2.9.1-3.0.0 looks like a very dated version that works with Scala 2.9.1 but you are using Scala version 2.12.4. You need the most recent version of json4s that works with Scala 2.12.4 (which, based on Maven is json4s 3.5.3). From the json4s install instructions I think you just need the following in your build.sbt file.

libraryDependencies ++= Seq(
  "org.json4s" %% "json4s-jackson" % "{latestVersion}" 
)

This should grab the latest version of json4s-core automatically along with the json4s-jackson libraries.

Upvotes: 1

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