:wave: I'm new to Scala (started today) and I'm trying to understand how Coursier fit into everything. Would anyone mind explaining a bit? I installed it on my M1 MBP (But I still it runs under Rosetta since it doesn't support Apple Sillicon?) and it required me to have OpenJDK installed. Once installed, I run cs setup and it installs yet another JDK, including some tools like amm, sbt, scala and scalafmt. I'm trying to follow the Functional Programming Principles in Scala course on Coursera but ran into problem when they asked me to run sbt in the example project. Instead of starting the sbt prompt I got the following error:
~/code/scala-course $ sbt
[info] [launcher] getting org.scala-sbt sbt 1.5.0 (this may take some time)...
java.lang.ClassCastException: class java.lang.UnsupportedOperationException cannot be cast to class xsbti.FullReload (java.lang.UnsupportedOperationException is in module java.base of loader 'bootstrap'; xsbti.FullReload is in unnamed module of loader 'app')
at sbt.internal.XMainConfiguration.run(XMainConfiguration.java:59)
at sbt.xMain.run(Main.scala:46)
at xsbt.boot.Launch$.$anonfun$run$1(Launch.scala:149)
at xsbt.boot.Launch$.withContextLoader(Launch.scala:176)
at xsbt.boot.Launch$.run(Launch.scala:149)
at xsbt.boot.Launch$.$anonfun$apply$1(Launch.scala:44)
at xsbt.boot.Launch$.launch(Launch.scala:159)
at xsbt.boot.Launch$.apply(Launch.scala:44)
at xsbt.boot.Launch$.apply(Launch.scala:21)
at xsbt.boot.Boot$.runImpl(Boot.scala:78)
at xsbt.boot.Boot$.run(Boot.scala:73)
at xsbt.boot.Boot$.main(Boot.scala:21)
at xsbt.boot.Boot.main(Boot.scala)
[error] [launcher] error during sbt launcher: java.lang.ClassCastException: class java.lang.UnsupportedOperationException cannot be cast to class xsbti.FullReload (java.lang.UnsupportedOperationException is in module java.base of loader 'bootstrap'; xsbti.FullReload is in unnamed module of loader 'app')After some debugging on my part, it looks like Coursier installed sbt, version 1.6.2 and the project had configured sbt.version=1.5.0. Changing this to sbt.version=1.6.2 instead, solved the problem.
.bash_profile for a vert specific JDK.
~/.local/share/coursier/bin in your PATH
@Flowdalic When I run cs setup it asks to put things into .profile and .bash_profile. Specifically the following:
# >>> JVM installed by coursier >>>
export JAVA_HOME="/Users/kevin/Library/Caches/Coursier/arc/https/github.com/adoptium/temurin18-binaries/releases/download/jdk-18%252B36/OpenJDK18U-jdk_x64_mac_hotspot_18_36.tar.gz/jdk-18+36/Contents/Home"
# <<< JVM installed by coursier <<<
# >>> coursier install directory >>>
export PATH="$PATH:/Users/kevin/Library/Application Support/Coursier/bin"
# <<< coursier install directory <<<Adding /Users/kevin/Library/Application Support/Coursier/bin to my PATH is fine, but the JAVA_HOME is explicit. If I'm supposed to use Coursier to manage different versions of the JVM, I don't see how this fits into that.
cs java --jvm 11 --env
JAVA_HOME that coursier added to my .bash_profile I can't use the apps anymore.
JAVA_HOME to the output of cs java-home again.
scala now spits out The operation couldn’t be completed. Unable to locate a Java Runtime.
Please visit http://www.java.com for information on installing Java..
JAVA_HOME set, just not with a value provided by couriser
.envrc file that sets things up using cs java --env but I'm still confused how things is intended to work.
cs list that lists installed apps)?
sdk use java 17.0.3-zulu
Hello, I'm totally new to Scala so please forgive me in advance if I'm slow on the uptake here... I installed coursier via Homebrew. Then I added a channel from Maven with cs channel --add https://repo1.maven.org/maven2/io/gatling/highcharts/gatling-charts-highcharts-bundle/maven-metadata.xml. It showed the channel as properly installing. So far so good. But then when I try to install or resolve the package, I get:
cs resolve gatling-charts-highcharts-bundle
Exception in thread "main" java.lang.Exception: java.lang.Exception: Error decoding /Users/daniel/Library/Caches/Coursier/v1/https/repo1.maven.org/maven2/io/gatling/highcharts/gatling-charts-highcharts-bundle/maven-metadata.xml (https://repo1.maven.org/maven2/io/gatling/highcharts/gatling-charts-highcharts-bundle/maven-metadata.xml): Unexpected content found: <?xml version="1.0" encoding="UTF-8"?>Any ideas what I'm doing wrong here? Thanks.
java-home command to print the path for the linux-musl version of the JDK on Alpine?
My company has a proxy repository which all artifact access is fronted by.
As such in sbt, we use the configuration details mentioned here: https://www.scala-sbt.org/1.x/docs/Proxy-Repositories.html#sbt+Configuration in order to configure sbt to correctly resolve artifacts.
The docs referenced speak to a block like this:
[repositories]
local
my-ivy-proxy-releases: http://repo.company.com/ivy-releases/, [organization]/[module]/(scala_[scalaVersion]/)(sbt_[sbtVersion]/)[revision]/[type]s/[artifact](-[classifier]).[ext]
my-maven-proxy-releases: http://repo.company.com/maven-releases/This works great for sbt, but I am trying to accomplish the same in the coursier CLI (as well as in mill, which I know is outside the scope of this repo).
What would be the raw coursier configuration way to accomplish what sbt does? I'm interested both in how to do this with config files, i.e. using coursier.mirrors, using environment variables and finally using command line options.
What's of particular note is how to configure the ivy pattern in coursier as shown in sbt.
Hey folks, I'm trying to download a binary executable from :
https://repo1.maven.org/maven2/io/grpc/protoc-gen-grpc-java/1.47.0/
unfortunately, the binaries are not listed in the pom file, so setting types/classifiers in coursier dependencies is not helping. Does coursier allow for downloading a file without it being referenced in the pom ?