scala IntelliJ 无法解析 build.sbt 中的符号
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IntelliJ cannot resolve symbol in build.sbt
提问by CodeShaman
IntelliJ IDEA 15 is reporting an unresolved symbol for my project definition in my build.sbtfile
IntelliJ IDEA 15 在我的build.sbt文件中报告我的项目定义的未解析符号
lazy val root = (project in file(".")).enablePlugins(PlayScala)
It's reporting an error with projectand in.
它报告了一个错误project和in。
Cannot resolve symbol project.
Cannot resolve symbol in.
Everything else resolves perfectly and the project is otherwise all set up, sbt builds fine, activator runs fine.
其他一切都完美解决，项目其他方面都设置好了，sbt 构建良好，激活器运行良好。
采纳答案by Fabszn
To fix this issue, I imported: import sbt.projecton top of my build.sbt
为了解决这个问题，我导入了：import sbt.project在我的之上build.sbt
I am working with IntelliJ IDEA 16 EAP
我正在使用 IntelliJ IDEA 16 EAP
回答by CodeShaman
I looked on jetbrains' error tracker and found this is a known bug.
我查看了 jetbrains 的错误跟踪器，发现这是一个已知错误。
"Cannot resolve symbol project" in build.sbt
build.sbt 中的“无法解析符号项目”
回答by Ruurtjan Pul
In my case, after upgrading Intellij forgot that the project was a Scala project.
就我而言，升级 Intellij 后忘记了该项目是 Scala 项目。
Delete .idea/and import the project to fix this.
删除.idea/并导入项目以解决此问题。
回答by Matt Klein
This happened to me when when the "external library" referenced was a different version than the one stated in the build.sbtfile. Specifically:
当引用的“外部库”与build.sbt文件中所述的版本不同时，这发生在我身上。具体来说：
External Libraries -> SBT: org.scala-lang:scala-library:2.12.1
外部库 -> SBT: org.scala-lang:scala-library:2.12.1
build.sbt -> scalaVersion := "2.12.2"
build.sbt -> scalaVersion := "2.12.2"
