Ambiguous values in Lang and requestLang
Usage: PlayFramework 2.3 and SecureSocial (2.3 compatible)
I'm getting this error in the ViewTemplate:
[error] /Users/einevea/projects/einjar/einevault/econcepts/modules/eusers/app/services.eusers/MyViewTemplates.scala:29: ambiguous implicit values:
[error] both method request2lang in trait Controller of type (implicit request: play.api.mvc.RequestHeader)play.api.i18n.Lang
[error] and value lang of type play.api.i18n.Lang
[error] match expected type play.api.i18n.Lang
[error] override def getStartSignUpPage(form: Form[String])(implicit request: RequestHeader, lang: Lang): Html = views.html.eusers.custom.startSignUp(WUPage(Messages("securesocial.signup.title")),form)(request, lang, env)
Any help?
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The error message means you tried to invoke getStartSignUpPage
and it accepts an implicit one play.api.i18n.Lang
, but there are two implicit instances present in your scope Lang
, so the compiler doesn't know which one to choose.
The first is the lang value that you imported or defined (either as a value in the template or as an implicit parameter in the template parameter lists)
The second is a player built into one of them Controller.request2Lang
that knows how to extract Lang from the request to select the language the browser said it accepts (in the Accept-Language header).
You can get around this in a couple of ways: avoid having two instances Lang
in scope, explicitly specify parameters where you call getStartSignUpPage
, or make the implicit parameter list a regular parameter list.
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