The following combination in IntelliJ gives the "unknown artifact" error.
- scala 2.13.1
- Java 13 JDK
- sbt 1.3.3
The following combination don't give an error.
- scala 2.12.10
- Java 13 JDK
- sbt 1.3.3
The suggestions from an similiar question here didn't help:
- File/InvalidateAndRestart
- "update project resolvers' index"
What am I missing?
Minimal project on Github: https://github.com/hcetinkaya/sbt-scalatest-error-demo
My system:
Environment (updated):
OS: Windows 10.0 (Build 15063) VM on a VMWare 7.1
Scala Plugin: 2019.2.36
IntelliJ IDEA: 2019.2.3 (Ultimate Edition)
Build #IU-192.6817.14, built on September 23, 2019
with
Runtime version: 11.0.4+10-b304.69 amd64
VM: OpenJDK 64-Bit Server VM by Jetbrains
JAVA_HOME: E:\apps\java\jdk-13
SBT_HOME: E:\apps\sbt\sbt-1.3.3\sbt
build.sbt:
scalaVersion := "2.13.1" // "2.12.10" is OK. "2.13.1" gives an "unknown artifact" error
lazy val root = project.in(file("."))
.settings(
libraryDependencies ++= Seq(
"org.scalatest" %% "scalatest" % "3.0.8" % Test
)
)
build.properties:
sbt.version = 1.3.3
IntelliJ project structure:
Project Structure
Project
Project SDK: java 13 language level: 13
Modules
all sources -> language level: 13 /project default
dependencies Module SDK: project sdk
IntelliJ settings:
Build, Execution, Deployment
Build Tools
sbt
jre: E:\apps\java\jdk-13
Launcher: E:\apps\sbt\sbt-1.3.3\bin\sbt-launch.jar
Compiler
Scala Compiler Server
Use compile Server for Scala: checked
JDK: Project default
JVM max heap, MB: 1024
UPDATE:
sbt yields following error log:
error: error while loading String, class file '/modules/java.base/java/lang/String.class' is broken
(class java.lang.NullPointerException/null)
Details (chopped):
[info] Loading global plugins from C:\Users\hce\.sbt\1.0\plugins
[info] Updating ProjectRef(uri("file:/C:/Users/hce/.sbt/1.0/plugins/"), "global-plugins")...
[info] Done updating.
[info] Loading project definition from E:\learn\sbt\sbt-getting-started\project
[info] Updating ProjectRef(uri("file:/E:/learn/sbt/sbt-getting-started/project/"), "sbt-getting-started-build")...
[info] Done updating.
error: error while loading String, class file '/modules/java.base/java/lang/String.class' is broken
(class java.lang.NullPointerException/null)
[error] java.io.IOError: java.lang.RuntimeException: /packages cannot be represented as URI
[error] at java.base/jdk.internal.jrtfs.JrtPath.toUri(JrtPath.java:176)
[error] at scala.tools.nsc.classpath.JrtClassPath.asURLs(DirectoryClassPath.scala:204)
[error] at scala.tools.nsc.classpath.AggregateClassPath.$anonfun$asURLs$1(AggregateClassPath.scala:55)
[error] at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:240)
[error] at scala.collection.Iterator.foreach(Iterator.scala:937)
[error] at scala.collection.Iterator.foreach$(Iterator.scala:937)
[error] at scala.collection.AbstractIterator.foreach(Iterator.scala:1425)
[error] at scala.collection.IterableLike.foreach(IterableLike.scala:70)
...
[error] Caused by: java.lang.RuntimeException: /packages cannot be represented as URI
[error] at java.base/jdk.internal.jrtfs.JrtPath.toUri(JrtPath.java:176)
[error] at scala.tools.nsc.classpath.JrtClassPath.asURLs(DirectoryClassPath.scala:204)
[error] at scala.tools.nsc.classpath.AggregateClassPath.$anonfun$asURLs$1(AggregateClassPath.scala:55)
[error] at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:240)
[error] at scala.collection.Iterator.foreach(Iterator.scala:937)
[error] at scala.collection.Iterator.foreach$(Iterator.scala:937)
[error] at scala.collection.AbstractIterator.foreach(Iterator.scala:1425)
[error] at scala.collection.IterableLike.foreach(IterableLike.scala:70)
[error] at scala.collection.IterableLike.foreach$(IterableLike.scala:69)
[error] at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
[error] at scala.collection.TraversableLike.flatMap(TraversableLike.scala:240)
[error] at scala.collection.TraversableLike.flatMap$(TraversableLike.scala:237)
[error] at scala.collection.AbstractTraversable.flatMap(Traversable.scala:104)
[error] at scala.tools.nsc.classpath.AggregateClassPath.asURLs(AggregateClassPath.scala:55)
...
[error] at xsbt.boot.Launch$$anonfun$run$1.apply(Launch.scala:111)
[error] at xsbt.boot.Launch$.withContextLoader(Launch.scala:130)
[error] at xsbt.boot.Launch$.run(Launch.scala:111)
[error] at xsbt.boot.Launch$$anonfun$apply$1.apply(Launch.scala:37)
[error] at xsbt.boot.Launch$.launch(Launch.scala:119)
[error] at xsbt.boot.Launch$.apply(Launch.scala:20)
[error] at xsbt.boot.Boot$.runImpl(Boot.scala:56)
[error] at xsbt.boot.Boot$.main(Boot.scala:18)
[error] at xsbt.boot.Boot.main(Boot.scala)
[error] java.io.IOError: java.lang.RuntimeException: /packages cannot be represented as URI
UPDATE 2:
The following combination and steps worked for me
- scala 2.13.1
- Java OpenJDK 13.0.1 (set IntelliJ sbt options to OpenJDK)
- sbt 1.3.3 (set IntelliJ sbt-launch.jar option to sbt 1.3.3 directory)
steps:
- create a new sample project in commandline (see https://www.scala-sbt.org/1.x/docs/sbt-by-example.html)
- sbt compile, test should work
- import this project in IntelliJ
IntelliJ still shows the "unknown artifact" message but sbt compile, test works.
I assume, that a newly installed IntelliJ had Problems to compile the scala2_12 bridge for Cousier.
The commandline recompiled, now I can see scalatest_2.13, which was missing before, in project directory
null\Coursier\cache\v1\https\repo1.maven.org\maven2\org\scalatest\scalatest_2.13
