在 Heroku 上部署 Play Scala 应用答案

【问题标题】：Deploy Play Scala app on Heroku在 Heroku 上部署 Play Scala 应用
【发布时间】：2012-03-28 21:00:14
【问题描述】：

我有一个用 Play 和 Scala 编写的示例应用程序与 Amazon DynamoDB 通信，我正在尝试将它部署到 Heroku。 Heroku 只有部署 Play 应用程序或 Scala 应用程序的说明，但不能同时部署两者。我试图合并两者的说明，但没有完成。我看到了这个错误，

  [info] Compiling 1 Scala source to /tmp/build_1q6humfwtqitn/.sbt_home/.sbt/plugins/target/scala-2.9.1/sbt-0.11.2/classes...
   [info] Loading project definition from /tmp/build_1q6humfwtqitn/project
   [warn]   module not found: com.typesafe.startscript#xsbt-start-script-plugin;0.3.0
   [warn] ==== typesafe-ivy-releases: tried
   [warn]   http://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.startscript/xsbt-start-script-plugin/scala_2.9.1/sbt_0.11.2/0.3.0/ivys/ivy.xml
   [warn] ==== local: tried
   [warn]   /tmp/build_1q6humfwtqitn/.sbt_home/.ivy2/local/com.typesafe.startscript/xsbt-start-script-plugin/scala_2.9.1/sbt_0.11.2/0.3.0/ivys/ivy.xml
   [warn] ==== typesafe-ivy-releases: tried
   [warn]   http://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.startscript/xsbt-start-script-plugin/scala_2.9.1/sbt_0.11.2/0.3.0/ivys/ivy.xml
   [warn] ==== heroku-sbt-typesafe: tried
   [warn] ==== heroku-central: tried
   [warn]   http://s3pository.heroku.com/maven-central/com/typesafe/startscript/xsbt-start-script-plugin_2.9.1_0.11.2/0.3.0/xsbt-start-script-plugin-0.3.0.pom
   [warn] ==== heroku-scala-tools-releases: tried
   [warn]   http://s3pository.heroku.com/maven-scala-tools-releases/com/typesafe/startscript/xsbt-start-script-plugin_2.9.1_0.11.2/0.3.0/xsbt-start-script-plugin-0.3.0.pom
   [warn] ==== heroku-scala-tools-snapshots: tried
   [warn]   http://s3pository.heroku.com/maven-scala-tools-snapshots/com/typesafe/startscript/xsbt-start-script-plugin_2.9.1_0.11.2/0.3.0/xsbt-start-script-plugin-0.3.0.pom
   [warn] ==== heroku-sbt-typesafe: tried
   [warn] ==== heroku-central: tried
   [warn]   http://s3pository.heroku.com/maven-central/com/typesafe/startscript/xsbt-start-script-plugin_2.9.1_0.11.2/0.3.0/xsbt-start-script-plugin-0.3.0.pom
   [warn] ==== heroku-scala-tools-releases: tried
   [warn]   http://s3pository.heroku.com/maven-scala-tools-releases/com/typesafe/startscript/xsbt-start-script-plugin_2.9.1_0.11.2/0.3.0/xsbt-start-script-plugin-0.3.0.pom
   [warn] ==== heroku-scala-tools-snapshots: tried
   [warn]   http://s3pository.heroku.com/maven-scala-tools-snapshots/com/typesafe/startscript/xsbt-start-script-plugin_2.9.1_0.11.2/0.3.0/xsbt-start-script-plugin-0.3.0.pom
   [warn]   ::::::::::::::::::::::::::::::::::::::::::::::
   [warn]   ::          UNRESOLVED DEPENDENCIES         ::
   [warn]   ::::::::::::::::::::::::::::::::::::::::::::::
   [warn]   :: com.typesafe.startscript#xsbt-start-script-plugin;0.3.0: not found
   [warn]   ::::::::::::::::::::::::::::::::::::::::::::::
   [warn] 
   [warn]   Note: Some unresolved dependencies have extra attributes.  Check that these dependencies exist with the requested attributes.
   [warn]       com.typesafe.startscript:xsbt-start-script-plugin:0.3.0 (sbtVersion=0.11.2, scalaVersion=2.9.1)
   [warn] 
   [error] {file:/tmp/build_1q6humfwtqitn/project/}default-646eae/*:update: sbt.ResolveException: unresolved dependency: com.typesafe.startscript#xsbt-start-script-plugin;0.3.0: not found
   Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore?  !     Failed to build app with SBT 0.11.0
   ! Heroku push rejected, failed to compile Scala app

另外，我是 Java、Play 和 Scala 的新手，但熟悉在 Heroku 上部署 Rails 应用程序。

【问题讨论】：

我自己没有尝试过，但我最近注意到了这一点。希望能帮助到你。 jamesward.com/2012/02/21/…
如果这是 Play 2，请查看在 Heroku 上部署的说明：playframework.org/documentation/2.0/ProductionHeroku

标签： java scala heroku

【解决方案1】：

要么将 com.typesafe.startscript:xsbt-start-script-plugin:0.3.0 的版本更改为 0.5.0（在您指定此依赖项的地方），要么编辑 build.properties 文件以设置 sbt.version=0.11.0。

【讨论】：

Play 应用不需要xsbt-start-script-plugin。