impossible to get artifacts when data has not been loaded. IvyNode = com.fasterxml.jackson.core#jackson-databind;2.5.4

[cdmikechen]

I use url in Quick Setup Instructions - https://downloads.typesafe.com/typesafe-activator/1.3.12/typesafe-activator-1.3.12.zip to download play. I found when sbt complied dr-elephant, it report error : [error] (*:update) java.lang.IllegalStateException: impossible to get artifacts when data has not been loaded. IvyNode = com.fasterxml.jackson.core#jackson-databind;2.5.4. but I do not find version 2.5.4 in /project/Dependencis.scala.so how could I solve this problem?
here is my conf:

hadoop_version=2.6.0
spark_version=2.2.1
play_opts="-Dsbt.repository.config=app-conf/resolver.conf"

[cdmikechen]

solve problem by this https://stackoverflow.com/questions/16614794/illegalstateexception-impossible-to-get-artifacts-when-data-has-not-been-loaded.
add

dependencyOverrides += "com.fasterxml.jackson.core" % "jackson-databind" % "2.5.4"

on plugins.sbt and in Dependencies.scala change to

"com.fasterxml.jackson.core" % "jackson-databind" % "2.5.4"

In compling, also change some code for Spark2.2.0's change about Spark UI class.

[bspallholtz]

In plugins.sbt and Dependencies.scala what exactly needs to be updated?

[erwa]

I'm working on #553 and encountered this same issue when adding a dependency on tony-core to Dependencies.scala. Was able to fix it by excluding Jackson:

    "com.linkedin.tony" % "tony-core" % tonyVersion excludeAll(
      ExclusionRule(organization = "com.fasterxml.jackson.core"),
      ExclusionRule(organization = "org.apache.hadoop")
    )