问题
I have a Play 2.0 app that uses sbt 0.11.2. However when I set up a new Play server, it grabbed the latest version of sbt 0.11.3. Now when I run sbt compile on the new server, it complains
Detected sbt version 0.11.2
Cannot find sbt launcher 0.11.2
Please download:
/sbt-launch.jartypesafe.artifactoryonline.com/typesafe/ivy-releases/org.scala-tools.sbt/sbt-launch/0.11.2
/sbt-launch.jarc2-user/.sbt/.lib/0.11.2
I tried downloading sbt-launch 0.11.2 and putting in the same folder as sbt but still get the same error. Incidentally, is there a difference between play compile vs. sbt compile because play compile works.
回答1:
Yes I think there is a difference between play compile and sbt compile, if your sbt script uses a different SBT version, in your case vertion 0.11.2 rather than Play's 0.11.3.
Perhaps you should start using SBT 0.11.3 instead?
I just upgraded to Play 2.1-SNAPSHOT (Git rev. f7de038a48, Fri May 25) which uses SBT 0.11.3, and I had to make this change in project/build.properties:
Change from: sbt.version=0.11.2
to: sbt.version=0.11.3
And I linked my SBT bash script to the one included with Play, i.e. 0.11.3 not 0.11.2.
回答2:
If you're compiling Play20 from source, after running the ./build command in ./Play20/framework, you'll be in the Play shell.
Run the command about and you can check what version of sbt is being run.
> about
[info] This is sbt 0.12.0
[info] The current project is {file:/home/jw/code/Play20/framework/}Root
[info] The current project is built against Scala 2.9.2
[info] Available Plugins: com.typesafe.tools.mima.plugin.MimaPlugin, com.typesafe.sbtscalariform.ScalariformPlugin
[info] sbt, sbt plugins, and build definitions are using Scala 2.9.2
Then in your project directory, change the ./project/build.properties to the correct version.
来源：https://stackoverflow.com/questions/10760345/cannot-find-sbt-launcher-0-11-2