scala：运行 play-slick 示例会导致导入错误答案

【问题标题】：scala: Running a play-slick sample results in import errorscala：运行 play-slick 示例会导致导入错误
【发布时间】：2017-05-28 07:25:04
【问题描述】：

这里是绝对的 Scala 初学者。我在 macOS X 中安装了 scala 2.12.1。

我正在尝试从here 设置示例computer-database Play-Slick 示例

一旦我 cd 进入计算机数据库，我运行了 sbt run，它会导致这个错误：

error: not found: value PlayKeys "PlayKeys.playOmnidoc := false"

这些是文件夹根目录下build.sbt 的默认内容：

name := "computer-database-sample"
PlayKeys.playOmnidoc := false

我尝试在调用 PlayKeys 之前将以下几行添加到 build.sbt 以显式导入 play-slick：

libraryDependencies ++= Seq(
    "com.typesafe.slick" %% "slick" % "2.0.0",
    "com.typesafe.play" %% "play-slick" % "0.6.0.1",
    "com.typesafe.slick" %% "slick-extensions" % "3.1.0"
)

但我仍然遇到同样的错误。

我错过了什么吗？ scala项目应该这样设置吗？

【问题讨论】：

标签： scala slick play-slick

【解决方案1】：

停止你正在做的任何修改，恢复它们（你需要从 repo 获得干净的版本）。

执行以下操作（不是最快的根，但可以让您在旅途中探索其他方面）：

1) 转到 repo 根目录。

2) 类型：sbt - 我不行，先安装sbt

3) 在第 2 点成功之后，您应该会看到以下内容：

[pdolega@maracuja play-slick]$ sbt
[info] Loading project definition from /home/pdolega/projects/slick/play-slick/project
[info] Compiling 1 Scala source to /home/pdolega/projects/slick/play-slick/project/target/scala-2.10/sbt-0.13/classes...
Missing bintray credentials /home/pdolega/.bintray/.credentials. Some bintray features depend on this.
Missing bintray credentials /home/pdolega/.bintray/.credentials. Some bintray features depend on this.
Missing bintray credentials /home/pdolega/.bintray/.credentials. Some bintray features depend on this.
Missing bintray credentials /home/pdolega/.bintray/.credentials. Some bintray features depend on this.
Missing bintray credentials /home/pdolega/.bintray/.credentials. Some bintray features depend on this.
Missing bintray credentials /home/pdolega/.bintray/.credentials. Some bintray features depend on this.
[info] Set current project to play-slick-root (in build file:/home/pdolega/projects/slick/play-slick/)

4) 输入：projects。您将看到所有sbt 子项目：

> projects
[info] In file:/home/pdolega/projects/slick/play-slick/
[info]     basic-sample
[info]     computer-database-sample
[info]     docs
[info]     iteratee-sample
[info]     play-slick
[info]     play-slick-evolutions
[info]   * play-slick-root
[info]     samples
>

4) 输入project computer-database-sample

> project computer-database-sample
[info] Set current project to computer-database-sample (in build file:/home/pdolega/projects/slick/play-slick/)
[computer-database-sample] $

5) 现在您可以进行安装test，它将运行编译和之后的所有测试。或者您可以输入 run 来启动这个示例 Play 应用程序。

[computer-database-sample] $ run
[warn] Credentials file /home/pdolega/.bintray/.credentials does not exist

--- (Running the application, auto-reloading is enabled) ---

[info] p.c.s.NettyServer - Listening for HTTP on /0:0:0:0:0:0:0:0:9000

(Server started, use Ctrl+D to stop and go back to the console...)

【讨论】：