scala:运行play-slick示例会导致导入错误

Question

绝对是Scala的初学者。我在macOS X中安装了Scala2.12.1。

我正在尝试设置来自here的sample computer-database Play-Slick sample

一旦我用cd进入计算机数据库，我就运行sbt run，结果是这个错误：

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

以下是文件夹根目录下build.sbt的默认内容：

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

在调用PlayKeys之前，我尝试向build.sbt添加以下代码行，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"
)

但我仍然收到相同的错误。

我错过了什么吗？这是scala项目应该如何设置的吗？

Answer 1

停止你正在做的任何修改，恢复它们(你需要有来自repo的干净版本)。

执行以下操作(不是最快的root，而是允许您在进行过程中探索其他次要内容的root)：

1)进入repo根目录。

2)类型：sbt -i不起作用，请先安装sbt

3)在成功的第2点之后，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)类型：projects。您将看到所有的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)键入project computer-database-sample <-这将激活所需的子项目。

> 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)现在您可以安装do test，它将运行编译和之后的所有测试。或者，您可以键入run来启动此示例播放应用程序。

[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...)