【发布时间】：2019-04-06 04:07:39
【问题描述】：
试图解决 playframework 的 github 页面上的一个简单问题，但为此我必须构建文档。
根据他们的readme 我必须使用
sbt run 这样做，但最后（大约 20 分钟后）我得到一个错误：
[info] Packaging /home/ubuntu/playframework/framework/src/play-docs/target/scala-2.12/play-docs_2.12-2.7.0-SNAPSHOT.jar ...
[info] Done packaging.
sbt.ResolveException: unresolved dependency: com.typesafe.play#play-docs_2.12;2.7.0-SNAPSHOT: not found
at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:320)
at sbt.IvyActions$$anonfun$updateEither$1.apply(IvyActions.scala:191)
at sbt.IvyActions$$anonfun$updateEither$1.apply(IvyActions.scala:168)
at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:156)
at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:156)
at sbt.IvySbt$$anonfun$withIvy$1.apply(Ivy.scala:133)
at sbt.IvySbt.sbt$IvySbt$$action$1(Ivy.scala:57)
at sbt.IvySbt$$anon$4.call(Ivy.scala:65)
at xsbt.boot.Locks$GlobalLock.withChannel$1(Locks.scala:95)
at xsbt.boot.Locks$GlobalLock.xsbt$boot$Locks$GlobalLock$$withChannelRetries$1(Locks.scala:80)
at xsbt.boot.Locks$GlobalLock$$anonfun$withFileLock$1.apply(Locks.scala:99)
at xsbt.boot.Using$.withResource(Using.scala:10)
at xsbt.boot.Using$.apply(Using.scala:9)
at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:60)
at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:50)
at xsbt.boot.Locks$.apply0(Locks.scala:31)
at xsbt.boot.Locks$.apply(Locks.scala:28)
at sbt.IvySbt.withDefaultLogger(Ivy.scala:65)
at sbt.IvySbt.withIvy(Ivy.scala:128)
at sbt.IvySbt.withIvy(Ivy.scala:125)
at sbt.IvySbt$Module.withModule(Ivy.scala:156)
at sbt.IvyActions$.updateEither(IvyActions.scala:168)
at sbt.Classpaths$$anonfun$sbt$Classpaths$$work$1$1.apply(Defaults.scala:1555)
at sbt.Classpaths$$anonfun$sbt$Classpaths$$work$1$1.apply(Defaults.scala:1551)
at sbt.Classpaths$$anonfun$doWork$1$1$$anonfun$122.apply(Defaults.scala:1586)
at sbt.Classpaths$$anonfun$doWork$1$1$$anonfun$122.apply(Defaults.scala:1584)
at sbt.Tracked$$anonfun$lastOutput$1.apply(Tracked.scala:37)
at sbt.Classpaths$$anonfun$doWork$1$1.apply(Defaults.scala:1589)
at sbt.Classpaths$$anonfun$doWork$1$1.apply(Defaults.scala:1583)
at sbt.Tracked$$anonfun$inputChanged$1.apply(Tracked.scala:60)
at sbt.Classpaths$.cachedUpdate(Defaults.scala:1606)
at sbt.Classpaths$$anonfun$updateTask$1.apply(Defaults.scala:1533)
at sbt.Classpaths$$anonfun$updateTask$1.apply(Defaults.scala:1485)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:237)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
[error] (Play-Documentation/*:update) sbt.ResolveException: unresolved dependency: com.typesafe.play#play-docs_2.12;2.7.0-SNAPSHOT: not found
[error] Total time: 334 s, completed Nov 1, 2018 9:13:23 PM
于是我开始调查。我设置了 Ubuntu Desktop 18.4 的新副本，安装了 java 8、Sbt，将堆大小增加到 2 GB 并再次尝试。不幸的是，结果相同。
为了完整起见，这里是我的 java 版本：
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)
sbt run 之后的前几行也建议 sbt 导入的 scala 版本：
Getting org.scala-sbt sbt 0.13.17 (this may take some time)...
有谁知道这是我的配置（或配置，因为我已经在 Windows 10 PC、Fedora 28 和新的 Ubuntu 18.4 上测试过）还是我做错了什么？
【问题讨论】：
标签： build playframework sbt