scala - scala 2.10/sbt 0.13 升级时出现奇怪的错误消息

Question

我们正在尝试升级 https://github.com/linkedin/play-testng-plugin到 scala 2.10/sbt 0.13，也使用 https://bitbucket.org/jmhofer/sbt-testng-interface/wiki/Home 的新版本(3.0.0 vs 2.0.3)

但是，我在 sbt 编译时遇到了一个奇怪的错误，我们无法弄清楚，但似乎是由以下代码片段引起的:

class WrappedTestNGRunner(testClassLoader: ClassLoader, loggers: Array[Logger], state: TestRunState) extends TestNGRunner(testClassLoader: ClassLoader, loggers: Array[Logger], state: TestRunState) {
  override def run(testClassname: String, fingerprint: Fingerprint, eventHandler: EventHandler, testOptions: Array[String]) = {
    super.run(testClassname, fingerprint, eventHandler, testOptions)
  }
}

错误信息:

[error]
[error]      while compiling: /home/bliang/Projects/play-testng-plugin/plugin/src/main/scala/NGPlugin.scala
[error]         during phase: erasure
[error]      library version: version 2.10.1
[error]     compiler version: version 2.10.1
[error]   reconstructed args: -bootclasspath /export/apps/jdk/JDK-1_6_0_27/jre/lib/resources.jar:/export/apps/jdk/JDK-1_6_0_27/jre/lib/rt.jar:/export/apps/jdk/JDK-1_6_0_27/jre/lib/sunrsasign.jar:/export/apps/jdk/JDK-1_6_0_27/jre/lib/jsse.jar:/export/apps/jdk/JDK-1_6_0_27/jre/lib/jce.jar:/export/apps/jdk/JDK-1_6_0_27/jre/lib/charsets.jar:/export/apps/jdk/JDK-1_6_0_27/jre/lib/modules/jdk.boot.jar:/export/apps/jdk/JDK-1_6_0_27/jre/classes:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-lang/scala-library/jars/scala-library-2.10.1.jar -classpath /home/bliang/Projects/play-testng-plugin/plugin/target/scala-2.10/sbt-0.13/classes:/home/bliang/Projects/play-2.2.0-M2/repository/cache/scala_2.10/sbt_0.13/de.johoop/sbt-testng-plugin/jars/sbt-testng-plugin-3.0.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/de.johoop/sbt-testng-interface_2.10/jars/sbt-testng-interface_2.10-3.0.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/sbt/jars/sbt-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/main/jars/main-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/actions/jars/actions-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/classpath/jars/classpath-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/launcher-interface/jars/launcher-interface-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/interface/jars/interface-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/io/jars/io-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/control/jars/control-0.13.0.jar:/home/bliang/.sbt/boot/scala-2.10.2/lib/scala-compiler.jar:/home/bliang/.sbt/boot/scala-2.10.2/lib/scala-reflect.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/completion/jars/completion-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/collections/jars/collections-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/local/jline/jline/2.11/jars/jline.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/api/jars/api-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/compiler-integration/jars/compiler-integration-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/incremental-compiler/jars/incremental-compiler-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/logging/jars/logging-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/process/jars/process-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/relation/jars/relation-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/compile/jars/compile-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/persist/jars/persist-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-tools.sbinary/sbinary_2.10/jars/sbinary_2.10-0.4.2.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/classfile/jars/classfile-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/compiler-ivy-integration/jars/compiler-ivy-integration-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/ivy/jars/ivy-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/cross/jars/cross-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/local/org.apache.ivy/ivy/2.3.0-rc1/jars/ivy.jar:/home/bliang/Projects/play-2.2.0-M2/repository/local/com.jcraft/jsch/0.1.46/jars/jsch.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/run/jars/run-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/task-system/jars/task-system-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/tasks/jars/tasks-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/tracking/jars/tracking-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/cache/jars/cache-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/testing/jars/testing-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/test-agent/jars/test-agent-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/local/org.scala-sbt/test-interface/1.0/jars/test-interface.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/main-settings/jars/main-settings-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/apply-macro/jars/apply-macro-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/command/jars/command-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/compiler-interface/jars/compiler-interface-src-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/compiler-interface/jars/compiler-interface-bin-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/precompiled-2_8_2/jars/compiler-interface-bin-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/precompiled-2_9_2/jars/compiler-interface-bin-0.13.0.jar:/home/bliang/Projects/play-2.2.0-M2/repository/cache/org.scala-sbt/precompiled-2_9_3/jars/compiler-interface-bin-0.13.0.jar
[error]
[error]   last tree to typer: This(anonymous class $anonfun)
[error]               symbol: anonymous class $anonfun (flags: final <synthetic>)
[error]    symbol definition: final class $anonfun extends AbstractFunction1[ClassLoader,Unit] with Serializable
[error]        symbol owners: anonymous class $anonfun -> method apply -> anonymous class $anonfun -> method ngSettings -> object NGPlugin -> package plugin
[error]       context owners: value sharedState -> class WrappedTestNGFramework -> package plugin
[error]
[error] == Enclosing template or block ==
[error]
[error] Template( // val <local WrappedTestNGFramework>: <notype> in class WrappedTestNGFramework, tree.tpe=com.linkedin.plugin.WrappedTestNGFramework
[error]   "java.lang.Object", "org.scalatools.testing.Framework" // parents
[error]   ValDef(
[error]     private
[error]     "_"
[error]     <tpt>
[error]     <empty>
[error]   )
[error]   // 8 statements
[error]   DefDef( // def <init>(): com.linkedin.plugin.WrappedTestNGFramework in class WrappedTestNGFramework
[error]     <method>
[error]     "<init>"
[error]     []
[error]     List(Nil)
[error]     <tpt> // tree.tpe=com.linkedin.plugin.WrappedTestNGFramework
[error]     Block(
[error]       Apply( // def <init>(): Object in class Object
[error]         WrappedTestNGFramework.super."<init>" // def <init>(): Object in class Object
[error]         Nil
[error]       )
[error]       ()
[error]     )
[error]   )
[error]   ValDef( // private[this] val name: String in class WrappedTestNGFramework
[error]     private <local> <triedcooking>
[error]     "name "
[error]     <tpt> // tree.tpe=String
[error]     "TestNGFakeApp"
[error]   )
[error]   DefDef( // val name(): String in class WrappedTestNGFramework
[error]     <method> <stable> <accessor>
[error]     "name"
[error]     []
[error]     List(Nil)
[error]     <tpt> // tree.tpe=String
[error]     WrappedTestNGFramework.this."name " // private[this] val name: String in class WrappedTestNGFramework
[error]   )
[error]   ValDef( // private[this] val tests: Array[org.scalatools.testing.Fingerprint] in class WrappedTestNGFramework
[error]     private <local> <triedcooking>
[error]     "tests "
[error]     <tpt> // tree.tpe=Array[org.scalatools.testing.Fingerprint]
[error]     Apply( // def apply[T](xs: Seq[T],implicit evidence$2: scala.reflect.ClassTag[T]): Array[T] in object Array, tree.tpe=Array[org.scalatools.testing.Fingerprint]
[error]       TypeApply( // def apply[T](xs: Seq[T],implicit evidence$2: scala.reflect.ClassTag[T]): Array[T] in object Array, tree.tpe=(xs: Seq[org.scalatools.testing.Fingerprint], implicit evidence$2: scala.reflect.ClassTag[org.scalatools.testing.Fingerprint])Array[org.scalatools.testing.Fingerprint]
[error]         "scala"."Array"."apply" // def apply[T](xs: Seq[T],implicit evidence$2: scala.reflect.ClassTag[T]): Array[T] in object Array
[error]         <tpt> // tree.tpe=org.scalatools.testing.Fingerprint
[error]       )
[error]       // 2 arguments
[error]       Apply( // implicit def wrapRefArray[T <: Object](xs: Array[T]): scala.collection.mutable.WrappedArray[T] in class LowPriorityImplicits, tree.tpe=Seq[org.scalatools.testing.Fingerprint]
[error]         TypeApply( // implicit def wrapRefArray[T <: Object](xs: Array[T]): scala.collection.mutable.WrappedArray[T] in class LowPriorityImplicits, tree.tpe=(xs: Array[org.scalatools.testing.Fingerprint])scala.collection.mutable.WrappedArray[org.scalatools.testing.Fingerprint]
[error]           scala.this."Predef"."wrapRefArray" // implicit def wrapRefArray[T <: Object](xs: Array[T]): scala.collection.mutable.WrappedArray[T] in class LowPriorityImplicits
[error]           <tpt> // tree.tpe=org.scalatools.testing.Fingerprint
[error]         )
[error]         ArrayValue(
[error]           <tpt> // tree.tpe=org.scalatools.testing.Fingerprint
[error]           List(
[error]             Apply( // def <init>(annotationName: String,isModule: Boolean): de.johoop.testnginterface.Annotated in class Annotated
[error]               new de.johoop.testnginterface.Annotated."<init>" // def <init>(annotationName: String,isModule: Boolean): de.johoop.testnginterface.Annotated in class Annotated
[error]               // 2 arguments
[error]               "com.linkedin.plugin.FakeApplication"
[error]               Apply( // def apply$default$2(): Boolean @scala.annotation.unchecked.uncheckedVariance in object Annotated
[error]                 "de"."johoop"."testnginterface"."Annotated"."apply$default$2" // def apply$default$2(): Boolean @scala.annotation.unchecked.uncheckedVariance in object Annotated
[error]                 Nil
[error]               )
[error]             )
[error]           )
[error]         )
[error]       )
[error]       Apply( // def apply[T](runtimeClass1: Class[_]): scala.reflect.ClassTag[T] in object ClassTag, tree.tpe=scala.reflect.ClassTag[org.scalatools.testing.Fingerprint]
[error]         TypeApply( // def apply[T](runtimeClass1: Class[_]): scala.reflect.ClassTag[T] in object ClassTag, tree.tpe=(runtimeClass1: Class[_])scala.reflect.ClassTag[org.scalatools.testing.Fingerprint]
[error]           "ClassTag"."apply" // def apply[T](runtimeClass1: Class[_]): scala.reflect.ClassTag[T] in object ClassTag
[error]           <tpt> // tree.tpe=org.scalatools.testing.Fingerprint
[error]         )
[error]         classOf[org.scalatools.testing.Fingerprint]
[error]       )
[error]     )
[error]   )
[error]   DefDef( // val tests(): Array[org.scalatools.testing.Fingerprint] in class WrappedTestNGFramework
[error]     <method> <stable> <accessor>
[error]     "tests"
[error]     []
[error]     List(Nil)
[error]     <tpt> // tree.tpe=Array[org.scalatools.testing.Fingerprint]
[error]     WrappedTestNGFramework.this."tests " // private[this] val tests: Array[org.scalatools.testing.Fingerprint] in class WrappedTestNGFramework
[error]   )
[error]   DefDef( // def testRunner(testClassLoader: ClassLoader,loggers: Array[org.scalatools.testing.Logger]): com.linkedin.plugin.WrappedTestNGRunner in class WrappedTestNGFramework
[error]     <method>
[error]     "testRunner"
[error]     []
[error]     // 1 parameter list
[error]     ValDef( // testClassLoader: ClassLoader
[error]       <param> <triedcooking>
[error]       "testClassLoader"
[error]       <tpt> // tree.tpe=ClassLoader
[error]       <empty>
[error]     )
[error]     ValDef( // loggers: Array[org.scalatools.testing.Logger]
[error]       <param> <triedcooking>
[error]       "loggers"
[error]       <tpt> // tree.tpe=Array[org.scalatools.testing.Logger]
[error]       <empty>
[error]     )
[error]     <tpt> // tree.tpe=com.linkedin.plugin.WrappedTestNGRunner
[error]     Apply( // def <init>(testClassLoader: ClassLoader,loggers: Array[org.scalatools.testing.Logger],state: de.johoop.testnginterface.TestRunState): com.linkedin.plugin.WrappedTestNGRunner in class WrappedTestNGRunner
[error]       new com.linkedin.plugin.WrappedTestNGRunner."<init>" // def <init>(testClassLoader: ClassLoader,loggers: Array[org.scalatools.testing.Logger],state: de.johoop.testnginterface.TestRunState): com.linkedin.plugin.WrappedTestNGRunner in class WrappedTestNGRunner
[error]       // 3 arguments
[error]       "testClassLoader" // testClassLoader: ClassLoader
[error]       "loggers" // loggers: Array[org.scalatools.testing.Logger]
[error]       WrappedTestNGFramework.this."sharedState" // private[this] val sharedState: de.johoop.testnginterface.TestRunState in class WrappedTestNGFramework
[error]     )
[error]   )
[error]   ValDef( // private[this] val sharedState: de.johoop.testnginterface.TestRunState in class WrappedTestNGFramework
[error]     private <local> <triedcooking>
[error]     "sharedState"
[error]     <tpt> // tree.tpe=de.johoop.testnginterface.TestRunState
[error]     Apply( // def <init>(): de.johoop.testnginterface.TestRunState in class TestRunState, tree.tpe=de.johoop.testnginterface.TestRunState
[error]       new de.johoop.testnginterface.TestRunState."<init>" // def <init>(): de.johoop.testnginterface.TestRunState in class TestRunState, tree.tpe=()de.johoop.testnginterface.TestRunState
[error]       Nil
[error]     )
[error]   )
[error]   DefDef( // def testRunner(x$1: ClassLoader,x$2: Array[org.scalatools.testing.Logger]): org.scalatools.testing.Runner in class WrappedTestNGFramework
[error]     <method> <bridge>
[error]     "testRunner"
[error]     []
[error]     // 1 parameter list
[error]     ValDef( // x$1: ClassLoader
[error]       <param> <synthetic>
[error]       "x$1"
[error]       <tpt> // tree.tpe=ClassLoader
[error]       <empty>
[error]     )
[error]     ValDef( // x$2: Array[org.scalatools.testing.Logger]
[error]       <param> <synthetic>
[error]       "x$2"
[error]       <tpt> // tree.tpe=Array[org.scalatools.testing.Logger]
[error]       <empty>
[error]     )
[error]     <tpt> // tree.tpe=org.scalatools.testing.Runner
[error]     Apply( // def testRunner(testClassLoader: ClassLoader,loggers: Array[org.scalatools.testing.Logger]): com.linkedin.plugin.WrappedTestNGRunner in class WrappedTestNGFramework
[error]       WrappedTestNGFramework.this."testRunner" // def testRunner(testClassLoader: ClassLoader,loggers: Array[org.scalatools.testing.Logger]): com.linkedin.plugin.WrappedTestNGRunner in class WrappedTestNGFramework
[error]       // 2 arguments
[error]       "x$1" // x$1: ClassLoader
[error]       "x$2" // x$2: Array[org.scalatools.testing.Logger]
[error]     )
[error]   )
[error] )
[error]
[error] uncaught exception during compilation: scala.reflect.internal.Types$TypeError
[error] /home/bliang/Projects/play-testng-plugin/helpers/src/main/java/com/linkedin/plugin/NGTests.java:119: cannot find symbol
[error] symbol  : constructor FakeApplication(java.io.File,java.lang.ClassLoader,java.util.Map<java.lang.String,java.lang.String>,java.util.List<java.lang.String>)
[error] location: class play.test.FakeApplication
[error]         return new FakeApplication(new File(path), Helpers.class.getClassLoader(), getConf(), getPlugins());
[error]                ^
[error] Note: /home/bliang/Projects/play-testng-plugin/helpers/src/main/java/com/linkedin/plugin/NGTests.java uses unchecked or unsafe operations.
[error] Note: Recompile with -Xlint:unchecked for details.
[error] 1 error
[trace] Stack trace suppressed: run last play-plugins-testng/compile:compile for the full output.
[error] (play-plugins-testng/compile:compile) scala.reflect.internal.Types$TypeError: bad symbolic reference. A signature in EventRecorder.class refers to term testng
[error] in package org which is not available.
[error] It may be completely missing from the current classpath, or the version on
[error] the classpath might be incompatible with the version used when compiling EventRecorder.class.
[error] (play-testng-helpers/compile:compile) javac returned nonzero exit code
[error] Total time: 4 s, completed Aug 28, 2013 5:36:20 PM

差异如下:

diff --git a/plugin/src/main/scala/NGPlugin.scala b/plugin/src/main/scala/NGPlugin.scala
index e3f7c67d5386c3737ea5c4c31c30e83a47111471..89ae5687d371e0b353dd39f869d31afb81844085 100644
--- a/plugin/src/main/scala/NGPlugin.scala
+++ b/plugin/src/main/scala/NGPlugin.scala
@@ -44,7 +44,7 @@ object NGPlugin extends Plugin {
        libraryDependencies <++= (testNGVersion in Test)(v => Seq(
          "org.testng" % "testng" % v % "test->default",
          // If changing this, be sure to change in Build.scala also.
-         "de.johoop" %% "sbt-testng-interface" % "2.0.3" % "test"))
+         "de.johoop" % "sbt-testng-interface_2.10" % "3.0.0" % "test"))
   )

   private def playLoggerClass(loader: ClassLoader) = {
@@ -74,4 +74,4 @@ class WrappedTestNGRunner(testClassLoader: ClassLoader, loggers: Array[Logger],
   override def run(testClassname: String, fingerprint: Fingerprint, eventHandler: EventHandler, testOptions: Array[String]) = {
     super.run(testClassname, fingerprint, eventHandler, testOptions)
   }
-}
+}
\ No newline at end of file
diff --git a/project/Build.scala b/project/Build.scala
index aee26f3af24644fa9bdb39f1d317a91b60d2618c..2a62dd04be0a68aab11c0b07edaf8e0c283afcf7 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -21,6 +21,7 @@ object NGPluginBuild extends Build {
                             url(ArtifactoryBaseUrl + "CORE"))(LinkedInPatterns)

     val typeSafeReleases = "TypeSafeRelease" at "http://repo.typesafe.com/typesafe/releases/"
+    val sonaTypeReleases = "Sonatype OSS Releases" at "https://oss.sonatype.org/content/repositories/releases/"
   }

   lazy val root = Project("root", file("."),
@@ -34,7 +35,7 @@ object NGPluginBuild extends Build {
     settings = commonSettings ++ Seq(
       libraryDependencies ++= Seq(
         "org.testng" % "testng" % "6.4", // % "provided"
-        "play" %% "play-test" % "2012.09.20.1886ca6" //% "provided"
+        "play" % "play-test_2.10" % "2.2-SNAPSHOT" //% "provided"
       )))

   lazy val NGPlugin = Project(
@@ -45,16 +46,16 @@ object NGPluginBuild extends Build {
       libraryDependencies <++= (scalaVersion, sbtVersion) { 
         case (scalaVersion, sbtVersion) => Seq(
           // If changing this, be sure to change in NGPlugin.scala also.
-          sbtPluginExtra("de.johoop" % "sbt-testng-plugin" % "2.0.3", "0.12", scalaVersion),
-          "de.johoop" %% "sbt-testng-interface" % "2.0.3"
+          sbtPluginExtra("de.johoop" % "sbt-testng-plugin" % "3.0.0", "0.13", "2.10"),
+          "de.johoop" % "sbt-testng-interface_2.10" % "3.0.0"
         )
       }))

   lazy val commonSettings: Seq[Setting[_]] = Project.defaultSettings ++ publishSettings ++ Seq(
     organization := "com.linkedin",
-    scalaVersion := "2.9.2",
+    scalaVersion := "2.10.1",
     version := "2012.09.20.1886ca6-v5",
-    resolvers ++= Seq(Repos.localRepo, Repos.sandbox, Repos.typeSafeReleases))
+    resolvers ++= Seq(Repos.localRepo, Repos.sandbox, Repos.typeSafeReleases, Repos.sonaTypeReleases))

   lazy val publishSettings: Seq[Setting[_]] = Seq(
     // publishTo <<= version { (v: String) =>
diff --git a/project/build.properties b/project/build.properties
index a8c2f849be3cf976d18427f666d9e6d433d189b2..0974fce44da5f8a84f7e1efe6aff9ebb25d128f6 100755
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.12.0
+sbt.version=0.13.0
diff --git a/sample/project/build.properties b/sample/project/build.properties
index a8c2f849be3cf976d18427f666d9e6d433d189b2..0974fce44da5f8a84f7e1efe6aff9ebb25d128f6 100644
--- a/sample/project/build.properties
+++ b/sample/project/build.properties
@@ -1 +1 @@
-sbt.version=0.12.0
+sbt.version=0.13.0

Answer 1

编译错误是由 FakeApplication(...) 的签名更改引起的。

Uncaught exception during compilation: scala.reflect.internal.Types$TypeError
[error] /home/bliang/Projects/play-testng-plugin/helpers/src/main/java/com/linkedin/plugin/NGTests.java:119: cannot find symbol
[error] symbol  : constructor FakeApplication(java.io.File,java.lang.ClassLoader,java.util.Map<java.lang.String,java.lang.String>,java.util.List<java.lang.String>)
[error] location: class play.test.FakeApplication
[error]         return new FakeApplication(new File(path), Helpers.class.getClassLoader(), getConf(), getPlugins());

你需要改变

return new FakeApplication(new File(path), Helpers.class.getClassLoader(), getConf(), getPlugins());

到

return new FakeApplication(new File(path), Helpers.class.getClassLoader(), getConf(), getPlugins(), null);

在 NGTest.java 中:119

您还可能会遇到类路径问题，因为类路径中播放的版本不同。Play 的 groupId 在 2.2.x 中从“play”更改为“com.typesafe.play”，这可能是个问题，因为 sbt 会将不同版本的 play-* 视为不同的工件，因此不会检测冲突的版本。