I guess a lot of people will copy this section, and i needed to specify dependsOn in my build for it to work

Author: oyvindberg

project/Build.scala

@@ -83,11 +83,9 @@ object ScalajsReact extends Build {
 
   def useReactJs(scope: String = "compile"): PE =
     _.settings(
-      jsDependencies += "org.webjars.npm" % "react"     % "0.14.0" % scope / "react-with-addons.js" commonJSName "React",
-      jsDependencies += "org.webjars.npm" % "react-dom" % "0.14.0" % scope / "react-dom.js"         commonJSName "ReactDOM",
-      // jsDependencies += "org.webjars.bower" % "react" % "0.14.0" % scope / "react-with-addons.js" commonJSName "React",
-      // jsDependencies += "org.webjars.bower" % "react" % "0.14.0" % scope / "react-dom.js"         commonJSName "ReactDOM",
-      jsDependencies += "org.webjars" % "sizzle" % "2.1.1" % scope / "sizzle.min.js" commonJSName "Sizzle",
+      jsDependencies += "org.webjars.npm" % "react"     % "0.14.0" % scope / "react-with-addons.js" commonJSName "React"    minified "react-with-addons.min.js",
+      jsDependencies += "org.webjars.npm" % "react-dom" % "0.14.0" % scope / "react-dom.js"         commonJSName "ReactDOM" minified "react-dom.min.js"         dependsOn "react-with-addons.js",
+      jsDependencies += "org.webjars"     % "sizzle"    % "2.1.1"  % scope / "sizzle.min.js"        commonJSName "Sizzle",
       skip in packageJSDependencies := false)
 
   def addCommandAliases(m: (String, String)*) = {