scalajs-bundler | Module bundler for Scala | Build Tool library

I am facing this issue when upgrading from sbt-scalajs 0.6.x to 1.2.0 and the issue is:-

With sbt-scalajs v0.6.26 (and sbt-scalajs-bundler v0.14.0), I have enabled the jsdom support for tests:

I am trying out the following hello world example of scalajs export found here:

I try to make a simple scalajs + scalajs-bootstrap application, but there is few documentation on how to set up the skeleton. The scalajs-bootstrap project has an example, but the build.sbt file is very big and it contains both the source code of the scalajs-bootstrap and the example itself.

I tried creating a new project with only the bootstrap4 example, but when I open the index.html page on the browswer, it complains with

Uncaught ReferenceError: exports is not defined at scalajsenv.js:29

This is my current set-up:

project/plugins.sbt

When running val bundle = (Compile / fastOptJS / webpack).value in my build.sbt, I get the following files in the 'bundle':

What I am missing is the -fastopt-bundler.js.map.

If I check target/scala-2.12/scalajs-bundler/main the file is there!

The only setting of my build.sbt is:

webpackBundlingMode := BundlingMode.LibraryAndApplication()

project/plugins.sbt

I am using the scalajs-bundler plugin and have defined my build.sbt thus:

I have written a facade using JSImport, and it works. Unfortunately, I arrived at the solution through trial and error, and I don't fully understand why this particular solution works but others I tried did not.

Background: I'm starting with a working project, built with sbt, which is a single page application that implements the client side code with scala.js and the server side with scala and the Play framework. The javascript libraries were packaged with web jars and bundled into the client js file using the sbt jsDependencies variable. I wanted to implement some new features which required a library up rev, which then required an up rev of some javascript libs which were only available in npm format. So now I am including all the javascript dependencies for the client app using npmDependencies with the scalajs-bundler plugin. This broke some of the scalajs facades leading to my question.

I'll use the facade to log4javascript as an example for this question.

The variable log4javascript is the top level object used to access the rest of the api.

When the js libs were included as web jars, this is how the facade to log4javascript was implemented:

If I download a clone of the scalajs-bundler project and navigate to any of the sbt-test projects I cannot get any of them to work - for example the facade project.

When I enter the sbt command I get the following error:

[error] java.lang.RuntimeException: 'plugin.version' environment variable not set

Full stack trace is:

[error] java.lang.RuntimeException: 'plugin.version' environment variable is not set [error] at scala.sys.package$.error(package.scala:26) [error] at $0813db5cafe4ec2bbe2c$.$anonfun$$sbtdef$1(/home/des/workspace/scalajs-bundler-master/sbt-scalajs-bundler/src/sbt-test/sbt-scalajs-bundler/facade/project/plugins.sbt:3) [error] at scala.collection.MapLike.getOrElse(MapLike.scala:127) [error] at scala.collection.MapLike.getOrElse$(MapLike.scala:125) [error] at scala.collection.AbstractMap.getOrElse(Map.scala:59) [error] at $0813db5cafe4ec2bbe2c$.$sbtdef(/home/des/workspace/scalajs-bundler-master/sbt-scalajs-bundler/src/sbt-test/sbt-scalajs-bundler/facade/project/plugins.sbt:3) [error] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [error] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [error] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [error] at java.lang.reflect.Method.invoke(Method.java:498) [error] at sbt.compiler.Eval$.getValue(Eval.scala:578) [error] at sbt.compiler.Eval.$anonfun$eval$1(Eval.scala:129) [error] at sbt.internal.EvaluateConfigurations$.$anonfun$evaluateDslEntry$1(EvaluateConfigurations.scala:249) [error] at sbt.internal.EvaluateConfigurations$.$anonfun$evaluateSbtFile$6(EvaluateConfigurations.scala:172) [error] at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:233) [error] at scala.collection.immutable.List.foreach(List.scala:388) [error] at scala.collection.TraversableLike.map(TraversableLike.scala:233) [error] at scala.collection.TraversableLike.map$(TraversableLike.scala:226) [error] at scala.collection.immutable.List.map(List.scala:294) [error] at sbt.internal.EvaluateConfigurations$.$anonfun$evaluateSbtFile$4(EvaluateConfigurations.scala:172) [error] at sbt.internal.Load$.loadSettingsFile$1(Load.scala:1137) [error] at sbt.internal.Load$.$anonfun$discoverProjects$2(Load.scala:1144) [error] at scala.collection.MapLike.getOrElse(MapLike.scala:127) [error] at scala.collection.MapLike.getOrElse$(MapLike.scala:125) [error] at scala.collection.AbstractMap.getOrElse(Map.scala:59) [error] at sbt.internal.Load$.memoLoadSettingsFile$1(Load.scala:1143) [error] at sbt.internal.Load$.$anonfun$discoverProjects$4(Load.scala:1151) [error] at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:233) [error] at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:58) [error] at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:51) [error] at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47) [error] at scala.collection.TraversableLike.map(TraversableLike.scala:233) [error] at scala.collection.TraversableLike.map$(TraversableLike.scala:226) [error] at scala.collection.AbstractTraversable.map(Traversable.scala:104) [error] at sbt.internal.Load$.loadFiles$1(Load.scala:1151) [error] at sbt.internal.Load$.discoverProjects(Load.scala:1165) [error] at sbt.internal.Load$.discover$1(Load.scala:862) [error] at sbt.internal.Load$.loadTransitive(Load.scala:937) [error] at sbt.internal.Load$.loadProjects$1(Load.scala:726) [error] at sbt.internal.Load$.$anonfun$loadUnit$11(Load.scala:729) [error] at sbt.internal.Load$.timed(Load.scala:1395) [error] at sbt.internal.Load$.$anonfun$loadUnit$1(Load.scala:729) [error] at sbt.internal.Load$.timed(Load.scala:1395) [error] at sbt.internal.Load$.loadUnit(Load.scala:688) [error] at sbt.internal.Load$.$anonfun$builtinLoader$4(Load.scala:484) [error] at sbt.internal.BuildLoader$.$anonfun$componentLoader$5(BuildLoader.scala:176) [error] at sbt.internal.BuildLoader.apply(BuildLoader.scala:241) [error] at sbt.internal.Load$.loadURI$1(Load.scala:546) [error] at sbt.internal.Load$.loadAll(Load.scala:562) [error] at sbt.internal.Load$.loadURI(Load.scala:492) [error] at sbt.internal.Load$.load(Load.scala:471) [error] at sbt.internal.Load$.$anonfun$apply$1(Load.scala:251) [error] at sbt.internal.Load$.timed(Load.scala:1395) [error] at sbt.internal.Load$.apply(Load.scala:251) [error] at sbt.internal.Load$.buildPluginDefinition(Load.scala:1312) [error] at sbt.internal.Load$.buildPlugins(Load.scala:1242) [error] at sbt.internal.Load$.plugins(Load.scala:1225) [error] at sbt.internal.Load$.$anonfun$loadUnit$2(Load.scala:694) [error] at sbt.internal.Load$.timed(Load.scala:1395) [error] at sbt.internal.Load$.$anonfun$loadUnit$1(Load.scala:694) [error] at sbt.internal.Load$.timed(Load.scala:1395) [error] at sbt.internal.Load$.loadUnit(Load.scala:688) [error] at sbt.internal.Load$.$anonfun$builtinLoader$4(Load.scala:484) [error] at sbt.internal.BuildLoader$.$anonfun$componentLoader$5(BuildLoader.scala:176) [error] at sbt.internal.BuildLoader.apply(BuildLoader.scala:241) [error] at sbt.internal.Load$.loadURI$1(Load.scala:546) [error] at sbt.internal.Load$.loadAll(Load.scala:562) [error] at sbt.internal.Load$.loadURI(Load.scala:492) [error] at sbt.internal.Load$.load(Load.scala:471) [error] at sbt.internal.Load$.$anonfun$apply$1(Load.scala:251) [error] at sbt.internal.Load$.timed(Load.scala:1395) [error] at sbt.internal.Load$.apply(Load.scala:251) [error] at sbt.internal.Load$.defaultLoad(Load.scala:69) [error] at sbt.BuiltinCommands$.liftedTree1$1(Main.scala:829) [error] at sbt.BuiltinCommands$.doLoadProject(Main.scala:829) [error] at sbt.BuiltinCommands$.$anonfun$loadProjectImpl$2(Main.scala:800) [error] at sbt.Command$.$anonfun$applyEffect$4(Command.scala:142) [error] at sbt.Command$.$anonfun$applyEffect$2(Command.scala:137) [error] at sbt.Command$.process(Command.scala:181) [error] at sbt.MainLoop$.processCommand(MainLoop.scala:151) [error] at sbt.MainLoop$.$anonfun$next$2(MainLoop.scala:139) [error] at sbt.State$$anon$1.runCmd$1(State.scala:246) [error] at sbt.State$$anon$1.process(State.scala:250) [error] at sbt.MainLoop$.$anonfun$next$1(MainLoop.scala:139) [error] at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16) [error] at sbt.MainLoop$.next(MainLoop.scala:139) [error] at sbt.MainLoop$.run(MainLoop.scala:132) [error] at sbt.MainLoop$.$anonfun$runWithNewLog$1(MainLoop.scala:110) [error] at sbt.io.Using.apply(Using.scala:22) [error] at sbt.MainLoop$.runWithNewLog(MainLoop.scala:104) [error] at sbt.MainLoop$.runAndClearLast(MainLoop.scala:59) [error] at sbt.MainLoop$.runLoggedLoop(MainLoop.scala:44) [error] at sbt.MainLoop$.runLogged(MainLoop.scala:35) [error] at sbt.StandardMain$.runManaged(Main.scala:138) [error] at sbt.xMain.run(Main.scala:89) [error] at xsbt.boot.Launch$$anonfun$run$1.apply(Launch.scala:109) [error] at xsbt.boot.Launch$.withContextLoader(Launch.scala:128) [error] at xsbt.boot.Launch$.run(Launch.scala:109) [error] at xsbt.boot.Launch$$anonfun$apply$1.apply(Launch.scala:35) [error] at xsbt.boot.Launch$.launch(Launch.scala:117) [error] at xsbt.boot.Launch$.apply(Launch.scala:18) [error] at xsbt.boot.Boot$.runImpl(Boot.scala:56) [error] at xsbt.boot.Boot$.main(Boot.scala:18) [error] at xsbt.boot.Boot.main(Boot.scala) [error] 'plugin.version' environment variable is not set

I'm trying to render a React.Suspense on an empty page, but failed with the following error: