Question

我尝试使用IntelliJ IDEA和Windows上的sbt插件编译https://github.com/apache/spark项目。

我正面临着关于sbt的错误。由于我不熟悉sbt，我不知道如何解决它。

错误消息如下：

[info] Loading project definition from F:\codeReading\sbtt\spark-master\project
[info] Compiling 3 Scala sources to F:\codeReading\sbtt\spark-master\project\target\scala-2.10\sbt-0.13\classes...
[error] F:\codeReading\sbtt\spark-master\project\SparkBuild.scala:26: object sbt is not a member of package com.typesafe
[error] import com.typesafe.sbt.pom.{PomBuild, SbtPomKeys}
[error]                     ^
[error] F:\codeReading\sbtt\spark-master\project\SparkBuild.scala:51: not found: type PomBuild
[error] object SparkBuild extends PomBuild {
[error]                           ^
[error] F:\codeReading\sbtt\spark-master\project\SparkBuild.scala:118: not found: value SbtPomKeys
[error]     otherResolvers <<= SbtPomKeys.mvnLocalRepository(dotM2 => Seq(Resolver.file("dotM2", dotM2))),
[error]                        ^
[error] F:\codeReading\sbtt\spark-master\project\SparkBuild.scala:178: value projectDefinitions is not a member of AnyRef
[error]     super.projectDefinitions(baseDirectory).map { x =>
[error]           ^
[error] four errors found
[error] (plugins/compile:compile) Compilation failed

Answer 1

Spark是用Maven构建的。 SBT构建只是一种便利。将它作为Maven项目导入会有更好的结果。

Answer 2

看起来IDEA并不喜欢Spark构建定义用于sbt-pom-reader的git项目的项目引用。

当我在克隆项目中运行sbt时，它出现了：

➜  spark git:(master) ✗ xsbt
[info] Loading global plugins from /Users/jacek/.sbt/0.13/plugins
[info] Loading project definition from /Users/jacek/oss/spark/project/project
[info] Loading project definition from /Users/jacek/.sbt/0.13/staging/ec3aa8f39111944cc5f2/sbt-pom-reader/project
[warn] Multiple resolvers having different access mechanism configured with same name 'sbt-plugin-releases'. To avoid conflict, Remove duplicate project resolvers (`resolvers`) or rename publishing resolver (`publishTo`).
[info] Loading project definition from /Users/jacek/oss/spark/project
[info] Set current project to spark-parent (in build file:/Users/jacek/oss/spark/)
>

在访问定义了引用的plugins项目时，您可以看到sbt-pom-reader的git项目的项目引用：

> reload plugins
[info] Loading global plugins from /Users/jacek/.sbt/0.13/plugins
[info] Loading project definition from /Users/jacek/oss/spark/project/project
[info] Updating {file:/Users/jacek/oss/spark/project/project/}project-build...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Loading project definition from /Users/jacek/.sbt/0.13/staging/ec3aa8f39111944cc5f2/sbt-pom-reader/project
[warn] Multiple resolvers having different access mechanism configured with same name 'sbt-plugin-releases'. To avoid conflict, Remove duplicate project resolvers (`resolvers`) or rename publishing resolver (`publishTo`).
[info] Updating {file:/Users/jacek/.sbt/0.13/staging/ec3aa8f39111944cc5f2/sbt-pom-reader/project/}sbt-pom-reader-build...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Loading project definition from /Users/jacek/oss/spark/project
> projects
[info] In file:/Users/jacek/oss/spark/project/
[info]   * plugins
[info]     spark-style
[info] In https://github.com/ScrapCodes/sbt-pom-reader.git
[info]     sbt-pom-reader

解决方案可以执行sbt gen-idea以生成IDEA的项目文件。不过，这只是猜测。

为什么构建Spark源代码“对象sbt不是com.typesafe包的成员”？

2 个答案: