Compilation error details

[RadoBuransky]

I use Zinc from Gradle to compile a Scala project. Compilation fails with "implicit numeric widening" error, but I don't see any information where is the error located. I mean there is no file name, line number, ...

I run "gradle -d compileTestScala" and I get following output:

10:39:58.372 [ERROR] [system.err] 10:39:58.372 [ERROR] [org.gradle.api.internal.tasks.scala.jdk6.ZincScalaCompiler] implicit numeric widening
10:39:59.468 [QUIET] [system.out] 10:39:59.468 [DEBUG] [org.gradle.api.internal.tasks.scala.jdk6.ZincScalaCompiler] Compilation failed (CompilerInterface)
10:39:59.471 [QUIET] [system.out] 10:39:59.469 [INFO] [org.gradle.api.internal.tasks.compile.daemon.CompilerDaemonServer] Exception executing org.gradle.api.intaCompiler@74f7baf5 in compiler daemon: org.gradle.api.internal.tasks.compile.CompilationFailedException: Compilation failed.
10:39:59.470 [ERROR] [system.err] 10:39:59.468 [ERROR] [org.gradle.api.internal.tasks.scala.jdk6.ZincScalaCompiler] one error found
10:39:59.496 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':compileTestScala'
10:39:59.499 [LIFECYCLE] [class org.gradle.TaskExecutionLogger] :compileTestScala FAILED

[RadoBuransky]

I have found out that it is caused by this line:

assert(List(1).length == 1)

assert is a macro provided by ScalaTest (org.scalatest.Assertions).

[RadoBuransky]

I've created an issue in ScalaTest as well, if you're interested:
scalatest/scalatest#445

[gkossakowski]

Have you tried running zinc in debug mode? That probably should show you more details.