learning sbt / failed to download slf4j

[Luc]

Hello,

I'm trying to switch from maven to sbt. (Motivation are to check speed differences, and have a better understanding of dependencies of my system).
So it's running fine with maven. I could run the sbt tutorial also.

Problem comes with the first trial to update: (this is the same result whichever is my sbt configuration file).
I tried different variations from https://www.assembla.com/spaces/liftweb/wiki/using_sbt

Any idea how to fix this?

Thanks for any hints!

$sbt update
[info] Building project safmh 1.0 against Scala 2.9.1
[info]    using LiftProject with sbt 0.7.4 and Scala 2.7.7
[info]
[info] == update ==
[warn]  [NOT FOUND  ] org.slf4j#slf4j-api;1.7.2!slf4j-api.jar (1ms)
[warn] ==== Local Maven Repository: tried
[warn]   file:///home/nuage/.m2/repository/org/slf4j/slf4j-api/1.7.2/slf4j-api-1.7.2.jar
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::              FAILED DOWNLOADS            ::
[warn]  :: ^ see resolution messages for details  ^ ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.slf4j#slf4j-api;1.7.2!slf4j-api.jar
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[info]
[warn] :: problems summary ::
[warn] :::: WARNINGS
[warn]          [NOT FOUND  ] org.slf4j#slf4j-api;1.7.2!slf4j-api.jar (1ms)
[warn]  ==== Local Maven Repository: tried
[warn]    file:///home/nuage/.m2/repository/org/slf4j/slf4j-api/1.7.2/slf4j-api-1.7.2.jar
[warn]          ::::::::::::::::::::::::::::::::::::::::::::::
[warn]          ::              FAILED DOWNLOADS            ::
[warn]          :: ^ see resolution messages for details  ^ ::
[warn]          ::::::::::::::::::::::::::::::::::::::::::::::
[warn]          :: org.slf4j#slf4j-api;1.7.2!slf4j-api.jar
[warn]          ::::::::::::::::::::::::::::::::::::::::::::::
[info]
[info] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
[error] sbt.ResolveException: download failed: org.slf4j#slf4j-api;1.7.2!slf4j-api.jar
[info] == update ==
[error] Error running update: sbt.ResolveException: download failed: org.slf4j#slf4j-api;1.7.2!slf4j-api.jar
[info]
[info] Total time: 2 s, completed 25-Apr-2014 19:48:06
[info]
[info] Total session time: 3 s, completed 25-Apr-2014 19:48:06
[error] Error during build.

[Antonio Salazar Cardozo]

It looks like it's only searching in your local maven repository. Did you mess with the resolvers at all? Usually sbt searches

at least Maven central, which it doesn't seem to be doing in this interaction.

Thanks,

Antonio

[Luc]

Thanks for the hint, no luck so far.

As in the example, I modified the resolvers, here is my build.sbt :

name := "safmh"

libraryDependencies += "org.mongodb" %% "casbah" % "2.5.0"
 
scalaVersion := "2.9.1"

seq(webSettings: _*)

// If using JRebel with 0.1.0 of the sbt web plugin
//jettyScanDirs := Nil
// using 0.2.4+ of the sbt web plugin
//scanDirectories in Compile := Nil

// you can also add multiple repositories at the same time
resolvers ++= Seq(
  "Scala Tools Releases" at "http://scala-tools.org/repo-releases/",
  "Java.net Maven2 Repository" at "http://download.java.net/maven/2/"
)

libraryDependencies ++= {
  val liftVersion = "2.5.1" // Put the current/latest lift version here
  Seq(
    "net.liftweb" %% "lift-webkit" % liftVersion % "compile->default",
    "net.liftweb" %% "lift-mapper" % liftVersion % "compile->default",
    "net.liftweb" %% "lift-wizard" % liftVersion % "compile->default")
}

// when using the sbt web app plugin 0.2.4+, use "container" instead of "jetty" for the context
// Customize any further dependencies as desired
libraryDependencies ++= Seq(
  "org.eclipse.jetty" % "jetty-webapp" % "9.1.0.M0" % "container",
  "org.scala-tools.testing" % "specs_2.9.0" % "1.6.8" % "test", // For specs.org tests
  "junit" % "junit" % "4.8" % "test->default", // For JUnit 4 testing
  "javax.servlet" % "servlet-api" % "2.5" % "provided->default",
  "com.h2database" % "h2" % "1.2.138", // In-process database, useful for development systems
  "ch.qos.logback" % "logback-classic" % "0.9.26" % "compile->default" // Logging
)

I also tried to change the resolvers confs (without anything, and without the Maven2 line) with no luck.
Also "http://download.java.net/maven/2/org/" has no  "slf4j" directory...
Also my previous "sbt update" did successfully downloaded many dependencies.

Any hints? I'll try to find where "slf4j" should be downloaded...

[Luc]

So I solved my problem with

rm -r ~.ivy2/
mv ~.m2 ~.m2.bak

It looks like some people had problem with slf4j this week.
It may be that sbt may be blocked by having a slf4j folder with .pom and no .jar, but don't thrust me there I'm really leaning now...

Thanks for the hint, it helped me to find this solution !

[Antonio Salazar Cardozo]

I'm glad you figured it out, that looked like a pretty bizarre one heh. Do note that at least the scala tools resolver is

way outdated. You'll probably want to have Sonatype instead:

"Sonatype" at "https://oss.sonatype.org/content/repositories/releases/"

Thanks,

Antonio

[Diego Medina]

and for others I just updated the wiki entry.

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Code: http://github.com/lift
Discussion: http://groups.google.com/group/liftweb
Stuck? Help us help you: https://www.assembla.com/wiki/show/liftweb/Posting_example_code

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