title: Grails 3 scaffolding issue
body: <p>I'm trying to port my project from Grails 2.4 to 3.0. Nothing fancy: 12 Domains, 13 Controllers and a service.
  Everything works fine, except when I try to include the Scaffolding plugin. I literally follow the manual <a href="http://grails.github.io/grails-doc/3.0.x/guide/scaffolding.html" rel="nofollow">here</a>, but the syntax must be wrong. Adding the plugin line as specified: </p>
  
  <pre><code>    plugins {
          …
          compile ":scaffolding:2.0.0"
          …
      }
  </code></pre>
  
  <p>leads to this: </p>
  
  <pre><code>    BUILD FAILED                
  
  Total time: 1.559 secs      
  | Error Error initializing classpath: startup failed:
  build file 'E:\GrailsIdeaProjects\HcaServer\build.gradle': 17: only id(String) method calls allowed in plugins {} script block
  
  See http://gradle.org/docs/2.3/userguide/plugins.html#sec:plugins_block for information on the plugins {} block
  
   @ line 17, column 5.
         compile ":scaffolding:2.0.0"
         ^
  
  1 error
   (Use --stacktrace to see the full trace)
  </code></pre>
  
  <p>Somebody knows the right syntax to include the Scaffolding plugin in Grails 3?</p>
  
  <p>EDIT: Thanks to Casey for pointing me in the right direction: Scaffolding plugin is actually already included in default build.gradle. Anyway, i still get a webpage like this on every controller:</p>
  
  <pre><code>Error: Page Not Found (404)
  Path: /*controllerName*/index
  </code></pre>
  
  <p>I've been using the same syntax as per the manual, declaring a <code>static scaffold = true</code> on each controller. Why do I get a 404 page then? I do have index.gsp, error.gsp and notFound.gsp in my views folder.</p>