title: Plugin with id 'no.nils.wsdl2java' not found. Gradle
body: <p>I have this error and I really cant understand why it is that way: </p>
  
  <p>Plugin with id 'no.nils.wsdl2java' not found.</p>
  
  <p>This is my build.gradle</p>
  
  <pre><code>    apply plugin: "java"
      apply plugin: "idea"
      apply plugin: "maven"
      apply plugin: "no.nils.wsdl2java"
  
      sourceSets {
          main {
              java {
                  srcDirs = [ "src" , generatedSourceWsdlDir ]
              }
              resources {
                  srcDirs = [ "src" ]
              }
          }
      }
  
      tasks.withType(JavaCompile) {
          sourceCompatibility = JavaVersion.VERSION_1_8
          targetCompatibility = JavaVersion.VERSION_1_8
          options.encoding = ENCODING
      }
  
      wsdl2java {
          wsdlDir = file("xml-resources")
          generatedWsdlDir = file(generatedSourceWsdlDir)
          wsdlsToGenerate = [
                  ["${project.projectDir}/xml-resources/wsdl/gate/File.wsdl"]
          ]
      }
  
      compileJava.dependsOn(wsdl2java)
  </code></pre>