Unresolved dependency issue on sbt package command

Question

Hi, After a long time again I have started to practice the spark n scala.
I have written a word count program which is successfully running on eclipse but when I have tried it through sbt is failing and throwing below Exception:

sbt.ResolveException: unresolved dependency: org.scala-lang#scala-library;2.11.8: not found
[error] unresolved dependency: org.apache.spark#spark-core;2.1.1: not found
[error] unresolved dependency: org.scala-lang#scala-compiler;2.11.8: not found

My Spark is showing version 2.1.1 using scala version 2.11.8.
I have taken the reference of scala version 2.11.8 but its failing . Please tell me how to solve this issue?

Answer 1

Check if you are able to access internet to the system. Build issue sometimes happen if you do not have proper connectivity.

If you have internet connection and build still isn't working, try changing scala version.

As given below file.

build.sbt 

name := "WordcountFirstapp" 
version := "1.0"
scalaVersion := "2.10.4"
libraryDependencies += "org.apache.spark" %% "spark-core" % "2.1.1"
libraryDependencies += "org.apache.spark" %% "spark-sql" % "2.1.1"

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