【发布时间】：2014-12-28 03:36:13
【问题描述】：
我在编译我的游戏框架应用程序时遇到了一些问题。有时应用程序运行良好，但大多数时候这些问题都发生在 sbt 和 activator 工具上。这是使用 sbt 编译我的应用程序的示例：
[info] Compiling 15 Scala sources and 1 Java source to C:\Server\trunk\target\scala-2.11\classes...
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:8: error: cannot find symbol
[error] public static final controllers.ReverseAssets Assets = new controllers.ReverseAssets();
[error] ^
[error] symbol: class ReverseAssets
[error] location: package controllers
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:9: error: cannot find symbol
[error] public static final controllers.ReverseApplication Application = new controllers.ReverseApplication();
[error] ^
[error] symbol: class ReverseApplication
[error] location: package controllers
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:12: error: package controllers.javascript does not exist
[error] public static final controllers.javascript.ReverseAssets Assets = new controllers.javascript.ReverseAssets();
[error] ^
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:13: error: package controllers.javascript does not exist
[error] public static final controllers.javascript.ReverseApplication Application = new controllers.javascript.ReverseApplication();
[error] ^
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:18: error: package controllers.ref does not exist
[error] public static final controllers.ref.ReverseAssets Assets = new controllers.ref.ReverseAssets();
[error] ^
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:19: error: package controllers.ref does not exist
[error] public static final controllers.ref.ReverseApplication Application = new controllers.ref.ReverseApplication();
[error] ^
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:8: error: cannot find symbol
[error] public static final controllers.ReverseAssets Assets = new controllers.ReverseAssets();
[error] ^
[error] symbol: class ReverseAssets
[error] location: package controllers
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:9: error: cannot find symbol
[error] public static final controllers.ReverseApplication Application = new controllers.ReverseApplication();
[error] ^
[error] symbol: class ReverseApplication
[error] location: package controllers
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:12: error: package controllers.javascript does not exist
[error] public static final controllers.javascript.ReverseAssets Assets = new controllers.javascript.ReverseAssets();
[error] ^
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:13: error: package controllers.javascript does not exist
[error] public static final controllers.javascript.ReverseApplication Application = new controllers.javascript.ReverseApplication();
[error] ^
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:18: error: package controllers.ref does not exist
[error] public static final controllers.ref.ReverseAssets Assets = new controllers.ref.ReverseAssets();
[error] ^
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:19: error: package controllers.ref does not exist
[error] public static final controllers.ref.ReverseApplication Application = new controllers.ref.ReverseApplication();
[error] ^
[error] 12 errors
[error] (compile:compile) javac returned nonzero exit code
[error] Total time: 16 s, completed Oct 31, 2014 11:18:25 AM
其他时候我会用 sbt clean compile 得到这个错误：
[info] Compiling 15 Scala sources and 1 Java source to C:\Server\trunk\target\scala-2.11\classes...
[trace] Stack trace suppressed: run last compile:compile for the full output.
[error] (compile:compile) java.lang.NoClassDefFoundError: Lcontrollers/ReverseAssets;
[error] Total time: 45 s, completed Oct 31, 2014 11:45:49 AM
然后我将退出 sbt，然后再次运行 sbt clean compile，一切似乎都可以正常编译。我什至会运行 activator run 并且一切都编译得很好，但没有一个路由被识别：
# Home page
GET / controllers.Application.index
GET /login controllers.Application.login
然后我会在使用 activator run 编译时出错：
[info] Compiling 15 Scala sources and 1 Java source to C:\Server\trunk\target\scala-2.11\classes...
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:13: error: cannot find symbol
[error] public static final controllers.javascript.ReverseApplication Application = new controllers.javascript.ReverseApplication()
[error] ^
[error] symbol: class ReverseApplication
[error] location: package controllers.javascript
[error] C:\Server\trunk\target\scala-2.11\src_managed\main\controllers\routes.java:13: error: cannot find symbol
[error] public static final controllers.javascript.ReverseApplication Application = new controllers.javascript.ReverseApplication()
[error] ^
[error] symbol: class ReverseApplication
[error] location: package controllers.javascript
[error] 2 errors
[error] (compile:compile) javac returned nonzero exit code
[error] application -
! @6k3l8fool - Internal server error, for (GET) [/] ->
play.PlayExceptions$CompilationException: Compilation error[error: cannot find symbol]
at play.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27) ~[na:na]
at play.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27) ~[na:na]
at scala.Option.map(Option.scala:145) ~[scala-library-2.11.1.jar:na]
at play.PlayReloader$$anon$1$$anonfun$play$PlayReloader$$anon$$taskFailureHandler$1.apply(PlayReloader.scala:235) ~[na:na]
at play.PlayReloader$$anon$1$$anonfun$play$PlayReloader$$anon$$taskFailureHandler$1.apply(PlayReloader.scala:230) ~[na:na]
[warn] play - No application found at invoker init
然后我运行 activator clean run，我得到一个完全不同的错误：
[info] Compiling 15 Scala sources and 1 Java source to C:\Server\trunk\target\scala-2.11\classes...
java.lang.IllegalArgumentException: requirement failed: Source file 'C:\Server\trunk\target\scala-2.11\classes\Routes$$anonfun$routes$1$$anonfun$applyOrElse$4.class' does not exist.
at scala.Predef$.require(Predef.scala:233)
at sbt.IO$.copyFile(IO.scala:580)
at sbt.IO$.sbt$IO$$copyImpl(IO.scala:559)
at sbt.IO$$anonfun$copy$1.apply(IO.scala:548)
at sbt.IO$$anonfun$copy$1.apply(IO.scala:548)
at scala.Function$$anonfun$tupled$1.apply(Function.scala:77)
at scala.Function$$anonfun$tupled$1.apply(Function.scala:76)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at sbt.IO$.copy(IO.scala:548)
at play.PlayCommands$$anonfun$PostCompile$1.apply(PlayCommands.scala:162)
at play.PlayCommands$$anonfun$PostCompile$1.apply(PlayCommands.scala:76)
at scala.Function8$$anonfun$tupled$1.apply(Function8.scala:35)
at scala.Function8$$anonfun$tupled$1.apply(Function8.scala:34)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:42)
at sbt.std.Transform$$anon$4.work(System.scala:64)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:18)
at sbt.Execute.work(Execute.scala:244)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:160)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:30)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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] (compile:compile) java.lang.IllegalArgumentException: requirement failed: Source file 'C:\Server\AuthWebManager\trunk\target\scala-2.11\classes\Routes$$anonfun$routes$1$$anonfun$applyOrElse$4.
class' does not exist.
[error] application -
! @6k3l90dc5 - Internal server error, for (GET) [/] ->
play.PlayExceptions$UnexpectedException: Unexpected exception[IllegalArgumentException: requirement failed: Source file 'C:\Server\AuthWebManager\trunk\target\scala-2.11\classes\Routes$$anonfun$routes
$1$$anonfun$applyOrElse$4.class' does not exist.]
at play.PlayReloader$$anon$1$$anonfun$play$PlayReloader$$anon$$taskFailureHandler$1.apply(PlayReloader.scala:237) ~[na:na]
at play.PlayReloader$$anon$1$$anonfun$play$PlayReloader$$anon$$taskFailureHandler$1.apply(PlayReloader.scala:230) ~[na:na]
at scala.Option.map(Option.scala:145) ~[scala-library-2.11.1.jar:na]
at play.PlayReloader$$anon$1.play$PlayReloader$$anon$$taskFailureHandler(PlayReloader.scala:230) ~[na:na]
at play.PlayReloader$$anon$1$$anonfun$reload$2.apply(PlayReloader.scala:90) ~[na:na]
Caused by: java.lang.IllegalArgumentException: requirement failed: Source file 'C:\Server\trunk\target\scala-2.11\classes\Routes$$anonfun$routes$1$$anonfun$applyOrElse$4.class' does not
exist.
at scala.Predef$.require(Predef.scala:233) ~[scala-library-2.11.1.jar:na]
at sbt.IO$.copyFile(IO.scala:580) ~[na:na]
at sbt.IO$.sbt$IO$$copyImpl(IO.scala:559) ~[na:na]
at sbt.IO$$anonfun$copy$1.apply(IO.scala:548) ~[na:na]
at sbt.IO$$anonfun$copy$1.apply(IO.scala:548) ~[na:na]
[warn] play - No application found at invoker init
我也遇到了一些不同的错误，但为了简洁起见，我不会在这里写出来。我已经尝试过删除 .sbt 和 .ivy2/cache 文件夹的建议，但这并没有解决问题。
那么我该怎么做才能让我的 play 应用程序编译和运行而不会出现看似不确定的错误？
【问题讨论】：
-
当你把它添加到你的路由文件时会发生什么？
GET /assets/*file controllers.Assets.at(path="/public", file) -
路由文件里已经有了，我只是没有在问题中添加
-
那一行到底是什么？如果我没有编辑我的 application.conf 文件，这会是一个问题吗？
-
对不起，错误的警报，实际上它应该在默认的情况下工作（所以当样本被评论时）
-
您是否考虑过切换到 Spring？只是一个想法
标签： scala playframework playframework-2.0 sbt playframework-2.3