sbt FAIL ,unresolved dependency: com.typesafe.sbteclipse#sbteclipse_2.8.1;1.3-RC3: not found

[AymanElarian]

error sbt.ResolveException: unresolved dependency: com.typesafe.sbteclipse#sbteclipse_2.8.1;1.3-RC3: not found
[error] unresolved dependency: com.eed3si9n#sbt-assembly_2.9.2;sbt0.12.1_0.6: not found
[error] unresolved dependency: se.scalablesolutions.akka#akka-sbt-plugin;1.1.3: not found
[error] unresolved dependency: com.github.siasia#xsbt-web-plugin_2.9.2;0.1.0-0.12.1: not found
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore? q
Ayman-Elarians-MacBook-Pro:gis-shapes-reverse-geocoder-master eng-ayman$

[AymanElarian]

That error happen even after patch project/plugins/build.sbt

from
libraryDependencies <+= (sbtVersion) { v => "com.typesafe.sbteclipse" %% "sbteclipse" % "$ as the current 2.9 dont have rc3

to
libraryDependencies <+= (sbtVersion) { v => "com.typesafe.sbteclipse" % "sbteclipse_2.8.1" % "$