Hi, well, spark 1.2 was prepared for scala 2.10. If you want stable and fully functional tool I'd compile it this default compiler.
*I was able to compile Spar 1.2 by Java 7 and scala 2.10 seamlessly.* I also tried Java8 and scala 2.11 (no -Dscala.usejavacp=true), but I failed for some other problem: /mvn -Pyarn -Phadoop-2.5 -Dhadoop.version=2.5.0 -Dscala-2.11 -X -DskipTests clean package [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] Spark Project Parent POM ........................... SUCCESS [ 14.453 s] [INFO] Spark Project Core ................................. SUCCESS [ 47.508 s] [INFO] Spark Project Bagel ................................ SUCCESS [ 3.646 s] [INFO] Spark Project GraphX ............................... SUCCESS [ 5.533 s] [INFO] Spark Project ML Library ........................... SUCCESS [ 12.715 s] [INFO] Spark Project Tools ................................ SUCCESS [ 1.854 s] [INFO] Spark Project Networking ........................... SUCCESS [ 6.580 s] [INFO] Spark Project Shuffle Streaming Service ............ SUCCESS [ 5.290 s] [INFO] Spark Project Streaming ............................ SUCCESS [ 10.846 s] [INFO] Spark Project Catalyst ............................. SUCCESS [ 8.296 s] [INFO] Spark Project SQL .................................. SUCCESS [ 12.921 s] [INFO] Spark Project Hive ................................. SUCCESS [ 28.931 s] [INFO] Spark Project Assembly ............................. FAILURE [01:09 min] [INFO] Spark Project External Twitter ..................... SKIPPED [INFO] Spark Project External Flume ....................... SKIPPED [INFO] Spark Project External Flume Sink .................. SKIPPED [INFO] Spark Project External MQTT ........................ SKIPPED [INFO] Spark Project External ZeroMQ ...................... SKIPPED [INFO] Spark Project Examples ............................. SKIPPED [INFO] Spark Project REPL ................................. SKIPPED [INFO] Spark Project YARN Parent POM ...................... SKIPPED [INFO] Spark Project YARN Stable API ...................... SKIPPED [INFO] Spark Project YARN Shuffle Service ................. SKIPPED [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 03:49 min [INFO] Finished at: 2014-12-30T12:41:59+01:00 [INFO] Final Memory: 59M/417M [INFO] ------------------------------------------------------------------------ [WARNING] The requested profile "hadoop-2.5" could not be activated because it does not exist. [ERROR] Failed to execute goal on project spark-assembly_2.10: Could not resolve dependencies for project org.apache.spark:spark-assembly_2.10:pom:1.2.0: The following artifacts could not be resolved: org.apache.spark:spark-repl_2.11:jar:1.2.0, org.apache.spark:spark-yarn_2.11:jar:1.2.0: Could not find artifact org.apache.spark:spark-repl_2.11:jar:1.2.0 in central (https://repo1.maven.org/maven2) -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project spark-assembly_2.10: Could not resolve dependencies for project org.apache.spark:spark-assembly_2.10:pom:1.2.0: The following artifacts could not be resolved: org.apache.spark:spark-repl_2.11:jar:1.2.0, org.apache.spark:spark-yarn_2.11:jar:1.2.0: Could not find artifact org.apache.spark:spark-repl_2.11:jar:1.2.0 in central (https://repo1.maven.org/maven2) at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:220) at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:127) at org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:257) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:200) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:347) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213) at org.apache.maven.cli.MavenCli.main(MavenCli.java:157) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.maven.project.DependencyResolutionException: Could not resolve dependencies for project org.apache.spark:spark-assembly_2.10:pom:1.2.0: The following artifacts could not be resolved: org.apache.spark:spark-repl_2.11:jar:1.2.0, org.apache.spark:spark-yarn_2.11:jar:1.2.0: Could not find artifact org.apache.spark:spark-repl_2.11:jar:1.2.0 in central (https://repo1.maven.org/maven2) at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:198) at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:195) ... 22 more Caused by: org.eclipse.aether.resolution.DependencyResolutionException: The following artifacts could not be resolved: org.apache.spark:spark-repl_2.11:jar:1.2.0, org.apache.spark:spark-yarn_2.11:jar:1.2.0: Could not find artifact org.apache.spark:spark-repl_2.11:jar:1.2.0 in central (https://repo1.maven.org/maven2) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:384) at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:192) ... 23 more Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.apache.spark:spark-repl_2.11:jar:1.2.0, org.apache.spark:spark-yarn_2.11:jar:1.2.0: Could not find artifact org.apache.spark:spark-repl_2.11:jar:1.2.0 in central (https://repo1.maven.org/maven2) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:459) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367) ... 24 more Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.apache.spark:spark-repl_2.11:jar:1.2.0 in central (https://repo1.maven.org/maven2) at org.eclipse.aether.connector.wagon.WagonRepositoryConnector$6.wrap(WagonRepositoryConnector.java:1012) at org.eclipse.aether.connector.wagon.WagonRepositoryConnector$6.wrap(WagonRepositoryConnector.java:1004) at org.eclipse.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:725) at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:744) [ERROR] [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :spark-assembly_2.10/ -- View this message 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