Unable to compile using scala-cli with 3.8.0-RC2

[OndrejSpanel]

Scala-cli crashes when trying to compile file with 3.8.0-RC2.

Compiler version

3.8.0-RC2

Minimized code

//> using scala 3.8.0-RC2

Output

Compiling project (Scala 3.8.0-RC2, JVM (21))
Error compiling project (Scala 3.8.0-RC2, JVM (21))
Error: sbt.internal.inc.InvalidComponent: Expected single file for component 'org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0', found: C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\compiler-interface-1.10.7.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\fansi_3-0.5.1.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-native-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-reader-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-terminal-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-terminal-jni-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\pprint_3-0.9.3.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala-asm-9.9.0-scala-1.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala-library-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-compiler_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-interfaces-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-library_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-repl_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-sbt-bridge-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\sourcecode_3-0.4.4.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\tasty-core_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\util-interface-1.10.7.jar
        at sbt.internal.inc.BloopComponentManager.invalid(BloopComponentManager.scala:91)
        at sbt.internal.inc.BloopComponentManager.file(BloopComponentManager.scala:74)
        at sbt.internal.inc.BloopComponentCompiler.compiledBridgeJar(BloopComponentCompiler.scala:256)
        at sbt.internal.inc.BloopComponentCompiler$BloopCompilerBridgeProvider.compiledBridge(BloopComponentCompiler.scala:133)
        at sbt.internal.inc.BloopComponentCompiler$BloopCompilerBridgeProvider.fetchCompiledBridge(BloopComponentCompiler.scala:139)
        at sbt.internal.inc.AnalyzingCompiler.getDualLoader(AnalyzingCompiler.scala:354)
        at sbt.internal.inc.AnalyzingCompiler.getCompilerLoader(AnalyzingCompiler.scala:343)
        at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:87)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.compileSources$1(BloopHighLevelCompiler.scala:148)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.$anonfun$compile$9(BloopHighLevelCompiler.scala:181)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.$anonfun$compile$1(BloopHighLevelCompiler.scala:73)
        at bloop.tracing.NoopTracer$.trace(BraveTracer.scala:53)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.timed$1(BloopHighLevelCompiler.scala:72)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.$anonfun$compile$8(BloopHighLevelCompiler.scala:181)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at monix.eval.internal.TaskRunLoop$.startFull(TaskRunLoop.scala:81)
        at monix.eval.internal.TaskRestartCallback.syncOnSuccess(TaskRestartCallback.scala:101)
        at monix.eval.internal.TaskRestartCallback.onSuccess(TaskRestartCallback.scala:74)
        at monix.eval.internal.TaskExecuteOn$AsyncRegister$$anon$1.run(TaskExecuteOn.scala:71)
        at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1423)
        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)

Error: Unexpected error when compiling scala_36ed8d1a99-a4355ceaa5: sbt.internal.inc.InvalidComponent: Expected single file for component 'org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0', found: C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\compiler-interface-1.10.7.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\fansi_3-0.5.1.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-native-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-reader-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-terminal-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\jline-terminal-jni-3.29.0.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\pprint_3-0.9.3.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala-asm-9.9.0-scala-1.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala-library-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-compiler_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-interfaces-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-library_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-repl_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\scala3-sbt-bridge-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\sourcecode_3-0.4.4.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\tasty-core_3-3.8.0-RC2.jar, C:\Users\Ondra\AppData\Local\bloop\cache\components\org.scala-lang-scala3-sbt-bridge-3.8.0-RC2-bin_3.8.0-RC2__65.0\util-interface-1.10.7.jar
        at sbt.internal.inc.BloopComponentManager.invalid(BloopComponentManager.scala:91)
        at sbt.internal.inc.BloopComponentManager.file(BloopComponentManager.scala:74)
        at sbt.internal.inc.BloopComponentCompiler.compiledBridgeJar(BloopComponentCompiler.scala:256)
        at sbt.internal.inc.BloopComponentCompiler$BloopCompilerBridgeProvider.compiledBridge(BloopComponentCompiler.scala:133)
        at sbt.internal.inc.BloopComponentCompiler$BloopCompilerBridgeProvider.fetchCompiledBridge(BloopComponentCompiler.scala:139)
        at sbt.internal.inc.AnalyzingCompiler.getDualLoader(AnalyzingCompiler.scala:354)
        at sbt.internal.inc.AnalyzingCompiler.getCompilerLoader(AnalyzingCompiler.scala:343)
        at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:87)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.compileSources$1(BloopHighLevelCompiler.scala:148)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.$anonfun$compile$9(BloopHighLevelCompiler.scala:181)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.$anonfun$compile$1(BloopHighLevelCompiler.scala:73)
        at bloop.tracing.NoopTracer$.trace(BraveTracer.scala:53)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.timed$1(BloopHighLevelCompiler.scala:72)
        at sbt.internal.inc.bloop.internal.BloopHighLevelCompiler.$anonfun$compile$8(BloopHighLevelCompiler.scala:181)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at monix.eval.internal.TaskRunLoop$.startFull(TaskRunLoop.scala:81)
        at monix.eval.internal.TaskRestartCallback.syncOnSuccess(TaskRestartCallback.scala:101)
        at monix.eval.internal.TaskRestartCallback.onSuccess(TaskRestartCallback.scala:74)
        at monix.eval.internal.TaskExecuteOn$AsyncRegister$$anon$1.run(TaskExecuteOn.scala:71)
        at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1423)
        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)

Compilation failed

Expectation

The file should produce [error] No main class found, as it does with 3.8.0-RC1

[Gedochao]

What's the Scala CLI version you are using?

scala-cli version
scala version

[Gedochao]

Also, since the error message seems to be tied to Bloop, it might be worth to:

scala-cli bloop exit --power
scala bloop exit --power

[OndrejSpanel]

C:\Dev\Sandbox\src\main\scala>scala-cli -version
Scala CLI version: 1.10.1
Scala version (default): 3.7.4

Restarted whole computer, still the same issue.

[Gedochao]

The path implies you're on Windows... I wonder if it could be Windows specific.
Can't reproduce on my Mac.

[Gedochao]

@tgodzik any clue? The stack trace seems to be coming straight from Bloop, and not from the runner. 🤔
Extra question, @OndrejSpanel - which installation method did you use to get it on Windows? (shouldn't be a factor, but may make it easier to reproduce)

[OndrejSpanel]

Today I have used:

winget install virtuslab.scalacli

I already had some old version installed before, I am not sure by what method. I do not use scala-cli other than when I want to create a standalone repro to be posted here.

I confirm I do not see the issue on Ubuntu (running on VMWare).

[OndrejSpanel]

Apparently even after uninstalling scala-cli, it seems I have some version installed in "C:\Users\Ondra\AppData\Local\Coursier\data\bin"

I do not know how and why it was installed, based on the timestamps it was about a month ago.

I have no idea if I can remove it now and how should I do it. Regarding scala-cli, I am just a dumb user.

[Gedochao]

Apparently even after uninstalling scala-cli, it seems I have some version installed in "C:\Users\Ondra\AppData\Local\Coursier\data\bin"

I do not know how and why it was installed, based on the timestamps it was about a month ago.

I have no idea if I can remove it now and how should I do it. Regarding scala-cli, I am just a dumb user.

well, the path implies that it's been installed by coursier.
might have been installed together with the compiler.

I have no idea if I can remove it now and how should I do it. Regarding scala-cli, I am just a dumb user.

My safest bet would be cs uninstall

I confirm I do not see the issue on Ubuntu (running on VMWare).

Okay then...
@philwalk did you run into this, perchance?

I already bumped the Scala CLI test suite to 3.8.0-RC2 and that did run successfully on Windows... 🤔

• Bump Scala 3 Next RC to 3.8.0-RC2 VirtusLab/scala-cli#3977