playframework - Play Framework + SecureSocial : java. lang.NoSuchMethodError : securesocial. controllers.ReverseLoginPage.authenticate

Question

我是 Play Framework 的新手，我正在尝试将 SecureSocial 插件与 Facebook-OAuth2 提供商整合到我的应用程序中。当我向 /login 发送 GET 请求时遇到了这个错误:

! @6apkmf9m3 - Internal server error, for request [GET /login] ->

play.core.ActionInvoker$$anonfun$receive$1$$anon$1: Execution exception [[NoSuchMethodError: securesocial.controllers.ReverseLoginPage.authenticate(Ljava/lang/String;)Lplay/api/mvc/Call;]]
    at play.core.ActionInvoker$$anonfun$receive$1.apply(Invoker.scala:134) [play_2.9.1.jar:2.0.2]
    at play.core.ActionInvoker$$anonfun$receive$1.apply(Invoker.scala:115) [play_2.9.1.jar:2.0.2]
    at akka.actor.Actor$class.apply(Actor.scala:318) [akka-actor.jar:2.0.2]
    at play.core.ActionInvoker.apply(Invoker.scala:113) [play_2.9.1.jar:2.0.2]
    at akka.actor.ActorCell.invoke(ActorCell.scala:626) [akka-actor.jar:2.0.2]
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:197) [akka-actor.jar:2.0.2]
Caused by: java.lang.NoSuchMethodError: securesocial.controllers.ReverseLoginPage.authenticate(Ljava/lang/String;)Lplay/api/mvc/Call;
    at securesocial.core.IdentityProvider.authenticationUrl(IdentityProvider.scala:86) ~[classes/:na]
    at securesocial.views.html.login$$anonfun$apply$3$$anonfun$apply$4.apply(login.template.scala:44) ~[classes/:na]
    at securesocial.views.html.login$$anonfun$apply$3$$anonfun$apply$4.apply(login.template.scala:43) ~[classes/:na]
    at play.templates.TemplateMagic$.defining(ScalaTemplates.scala:756) ~[templates_2.9.1.jar:2.0.2]
    at securesocial.views.html.login$$anonfun$apply$3.apply(login.template.scala:43) ~[classes/:na]
    at securesocial.views.html.login$$anonfun$apply$3.apply(login.template.scala:42) ~[classes/:na]

• 有人可以提示我在哪里可以找到有关此错误的更多信息吗？
• Play 如何从 securesocial.controllers.ReverseLoginPage 转到 securesocial.controllers.LoginPage，前者存在于模块中？

Answer 1

来自Play 2 documentation :

For each controller used in the routes file, the router will generate a ‘reverse controller’ in the routes package, having the same action methods, with the same signature, but returning a play.api.mvc.Call instead of a play.api.mvc.Action.

我认为这就是 ReverseLoginPage 的来源，但我不知道失败的原因。可能 route 有一些错误，或者仍然存在的旧类(class)。尝试运行 clean，以确保不是这样。