无法启动Play Framework应用程序

Question

我创建了play框架应用程序，不幸的是有一个问题。当我尝试执行命令activator run时，我得到：

[info] Compiling 4 Scala sources and 2 Java sources to C:\playW\target\scala-2.11\classes...
[error] C:\playW\app\controllers\Application.java:3: error: package play does not exist
[error] import play.*;
[error] ^
[error] C:\playW\app\controllers\Application.java:4: error: package play.mvc does not exist
[error] import play.mvc.*;
[error] ^
[error] C:\playW\app\controllers\Application.java:8: error: cannot find symbol
[error] public class Application extends Controller {
[error]                                  ^
[error]   symbol: class Controller
[error] C:\playW\app\controllers\Application.java:10: error: cannot find symbol
[error]     public static Result index() {
[error]                   ^
[error]   symbol:   class Result
[error]   location: class Application
[error] C:\playW\target\scala-2.11\classes\controllers\ReverseAssets.class: warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature': class file for scala.reflect.ScalaSignature not found
[error] C:\playW\target\scala-2.11\classes\controllers\ReverseApplication.class:
 warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature'
[error] C:\playW\target\scala-2.11\classes\controllers\javascript\ReverseAssets.class: warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature

[error] C:\playW\target\scala-2.11\classes\controllers\javascript\ReverseApplication.class: warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature'
[error] C:\playW\target\scala-2.11\classes\controllers\ref\ReverseAssets.class: 
   warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature'
[error] C:\playW\target\scala-2.11\classes\controllers\ref\ReverseApplication.class:
   warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature'
[error] C:\playW\target\scala-2.11\classes\views\html\index.class: warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature'
[error] C:\playW\app\controllers\Application.java:11: error: cannot access Html
[error]         return ok(index.render("Your new application is ready."));
[error]                  ^
[error]   class file for play.twirl.api.Html not found
[error] 5 errors
[error] 7 warnings
[error] (compile:compile) javac returned nonzero exit code
[error] application -

! @6kd9c54ji - Internal server error, for (GET) [/] ->'

也许有人有这样的问题，因为现在我被卡住了。

Answer 1

最后我找到了课程..。这个问题导致了我的Windows8帐户名...我有一个波兰的名字，所以所有的东西都不是用UTF-8编码的，所以这就是为什么我不能构建我的项目的原因...

Answer 2

我也遇到过同样的issue.The问题，就是最新的依赖项或更改没有正确加载。

试一试

activator clean cleanFiles compile

然后再次运行应用程序。希望这能有所帮助。