title: Gradle NoClassDefFoundError
body: <p>So I am trying build a simple gradle app and when I run it, I getting</p>
  
  <pre><code>geb.ConfigurationLoader$UnableToLoadException: Unable to load configuration @ 'file:/Users/john/Development/groovy/gradlegebautomation/build/resources/test/GebConfig.groovy' (with environment: null)
      at geb.ConfigurationLoader.loadRawConfig(ConfigurationLoader.groovy:297)
      at geb.ConfigurationLoader.loadRawConfig(ConfigurationLoader.groovy:281)
      at geb.ConfigurationLoader.getConf(ConfigurationLoader.groovy:161)
      at geb.ConfigurationLoader.doGetConf(ConfigurationLoader.groovy:139)
      at geb.ConfigurationLoader.getConf(ConfigurationLoader.groovy:95)
      at geb.ConfigurationLoader.getConf(ConfigurationLoader.groovy:114)
      at geb.spock.GebSpec.createConf(GebSpec.groovy:29)
      at geb.spock.GebSpec.createBrowser(GebSpec.groovy:33)
      at geb.spock.GebSpec.getBrowser(GebSpec.groovy:38)
      at geb.spock.GebSpec.methodMissing(GebSpec.groovy:51)
      at geb.spock.GebReportingSpec.setupSpec(GebReportingSpec.groovy:30)
  Caused by: java.lang.NoClassDefFoundError: org/apache/ivy/core/report/ResolveReport
      at java.lang.Class.privateGetDeclaredMethods(Class.java:2436)
      at java.lang.Class.getDeclaredMethods(Class.java:1793)
      at org.codehaus.groovy.util.LazyReference.getLocked(LazyReference.java:46)
      at org.codehaus.groovy.util.LazyReference.get(LazyReference.java:33)
      at groovy.grape.GrapeIvy.&lt;init&gt;(GrapeIvy.groovy:75)
      at java.lang.Class.newInstance0(Class.java:357)
      at java.lang.Class.newInstance(Class.java:310)
      at groovy.grape.Grape.getInstance(Grape.java:101)
      at groovy.grape.Grape.grab(Grape.java:136)
      at groovy.grape.GrabAnnotationTransformation.visit(GrabAnnotationTransformation.java:291)
      at org.codehaus.groovy.transform.ASTTransformationVisitor$3.call(ASTTransformationVisitor.java:319)
      at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:903)
      at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:566)
      at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:542)
      at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:519)
      at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:279)
      at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:258)
      at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:244)
      at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:202)
      at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:212)
      at groovy.util.ConfigSlurper.parse(ConfigSlurper.groovy:146)
      at geb.ConfigurationLoader.loadRawConfig(ConfigurationLoader.groovy:295)
      ... 10 more
  Caused by: java.lang.ClassNotFoundException: org.apache.ivy.core.report.ResolveReport
      at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
      at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
      ... 32 more
  </code></pre>
  
  <p>So I created the folder structure src/test/groovy and src/main/groovy. I also created inside of test/groovy, another folder called store. So I can get this to work if I put the GebConfig.groovy in the src/test/groovy and src/test/groovy/store. Anything else I get the error above. Here is my build.gradle</p>
  
  <pre><code>apply plugin: 'groovy'
  
  repositories {
      mavenCentral()
  }
  
  dependencies {
      groovy group: 'org.codehaus.groovy', name: 'groovy', version: '2.0.5'
      groovy group: 'org.apache.ivy', name:'ivy', version:'2.2.0'
      compile 'org.codehaus.groovy:groovy-all:2.0.5'
      testCompile 'junit:junit:4.11'
      testCompile 'org.spockframework:spock-core:0.7-groovy-2.0'
      testCompile 'org.gebish:geb-spock:0.9.0-RC-1'
      testCompile 'org.seleniumhq.selenium:selenium-firefox-driver:2.31.0'
  }
  </code></pre>
  
  <p>Here is my test</p>
  
  <pre><code>package groovy.store
  
  import geb.spock.GebReportingSpec
  
  class SimpleSpec extends GebReportingSpec {
  
      def "Doing a simple Guest checkout"() {
          given: "A test"
              def hello
  
          when: ""
              hello = "Hello"
  
          then:
              assert hello == "Hello"
      }
  }
  </code></pre>
  
  <p>Thoughts?</p>
  
  <p>UPDATE v1:</p>
  
  <p>Ok, it looks like I needed to add a new dependency in my build.gradle. I added the ivy dep and now I am getting this error:</p>
  
  <pre><code>* Exception is:
  org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':compileTestGroovy'.
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:72)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:49)
      at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:34)
      at org.gradle.api.internal.changedetection.CacheLockHandlingTaskExecuter$1.run(CacheLockHandlingTaskExecuter.java:34)
      at org.gradle.internal.Factories$1.create(Factories.java:22)
      at org.gradle.cache.internal.DefaultCacheAccess.longRunningOperation(DefaultCacheAccess.java:179)
      at org.gradle.cache.internal.DefaultCacheAccess.longRunningOperation(DefaultCacheAccess.java:232)
      at org.gradle.cache.internal.DefaultPersistentDirectoryStore.longRunningOperation(DefaultPersistentDirectoryStore.java:142)
      at org.gradle.api.internal.changedetection.DefaultTaskArtifactStateCacheAccess.longRunningOperation(DefaultTaskArtifactStateCacheAccess.java:83)
      at org.gradle.api.internal.changedetection.CacheLockHandlingTaskExecuter.execute(CacheLockHandlingTaskExecuter.java:32)
      at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:55)
      at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:57)
      at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:41)
      at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51)
      at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:52)
      at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:42)
      at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:275)
      at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.executeTask(DefaultTaskPlanExecutor.java:52)
      at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.processTask(DefaultTaskPlanExecutor.java:38)
      at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:30)
      at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:84)
      at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29)
      at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61)
      at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
      at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:67)
      at org.gradle.api.internal.changedetection.TaskCacheLockHandlingBuildExecuter$1.run(TaskCacheLockHandlingBuildExecuter.java:31)
      at org.gradle.internal.Factories$1.create(Factories.java:22)
      at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:124)
      at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:112)
      at org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(DefaultPersistentDirectoryStore.java:134)
      at org.gradle.api.internal.changedetection.DefaultTaskArtifactStateCacheAccess.useCache(DefaultTaskArtifactStateCacheAccess.java:79)
      at org.gradle.api.internal.changedetection.TaskCacheLockHandlingBuildExecuter.execute(TaskCacheLockHandlingBuildExecuter.java:29)
      at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61)
      at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
      at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:67)
      at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
      at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61)
      at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:54)
      at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:166)
      at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:113)
      at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:81)
      at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:38)
      at org.gradle.launcher.exec.InProcessGradleLauncherActionExecuter.execute(InProcessGradleLauncherActionExecuter.java:39)
      at org.gradle.launcher.exec.InProcessGradleLauncherActionExecuter.execute(InProcessGradleLauncherActionExecuter.java:25)
      at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:50)
      at org.gradle.api.internal.Actions$RunnableActionAdapter.execute(Actions.java:171)
      at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:201)
      at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:174)
      at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:170)
      at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:139)
      at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
      at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
      at org.gradle.launcher.Main.doAction(Main.java:48)
      at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
      at org.gradle.launcher.Main.main(Main.java:39)
      at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:50)
      at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:32)
      at org.gradle.launcher.GradleMain.main(GradleMain.java:26)
  Caused by: org.gradle.api.internal.tasks.compile.CompilationFailedException: Compilation failed; see the compiler error output for details.
      at org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:121)
      at org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:39)
      at org.gradle.api.internal.tasks.compile.daemon.CompilerDaemonServer.execute(CompilerDaemonServer.java:52)
      at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
      at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
      at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:355)
      at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:66)
  </code></pre>
  
  <p>Here is my GebConfig</p>
  
  <pre><code>import org.openqa.selenium.firefox.FirefoxDriver
  
  //reportsDir = "target/geb-reports"
  
  // default is to use firefox
  driver = {
      def driver = new FirefoxDriver()
      driver.manage().window().maximize()
      return driver
  }
  
  environments {
      'firefox' {
          driver = {
              def driver = new FirefoxDriver()
              driver.manage().window().maximize()
              return driver
          }   
      }
  }
  </code></pre>
  
  <p>UPDATE V2:</p>
  
  <p>Oh, I see if I go a little higher in the stack I see the following:</p>
  
  <pre><code>startup failed:
  Could not instantiate global transform class org.spockframework.compiler.SpockTransform specified at jar:file:/Users/john/.gradle/caches/artifacts-23/filestore/org.spockframework/spock-core/0.7-groovy-2.0/jar/4de0b428de0c14b6eb6375d8174f71848cbfc1d7/spock-core-0.7-groovy-2.0.jar!/META-INF/services/org.codehaus.groovy.transform.ASTTransformation  because of exception org.spockframework.util.IncompatibleGroovyVersionException: The Spock compiler plugin cannot execute because Spock 0.7.0-groovy-2.0 is not compatible with Groovy 1.8.6. For more information, see http://versioninfo.spockframework.org
  Spock location: file:/Users/john/.gradle/caches/artifacts-23/filestore/org.spockframework/spock-core/0.7-groovy-2.0/jar/4de0b428de0c14b6eb6375d8174f71848cbfc1d7/spock-core-0.7-groovy-2.0.jar
  Groovy location: file:/Users/john/bin/gradle-1.5/lib/groovy-all-1.8.6.jar
  </code></pre>
  
  <p>UPDATE v3:</p>
  
  <p>So I added regular groovy into my dependencies, see above. I am not passing the compile stage and failing at the test stage. Here is the message that is coming up in the report</p>
  
  <pre><code>geb.ConfigurationLoader$UnableToLoadException: Unable to load configuration from class 'class GebConfig' (with environment: null)
      at geb.ConfigurationLoader.loadRawConfig(ConfigurationLoader.groovy:297)
      at geb.ConfigurationLoader.loadRawConfig(ConfigurationLoader.groovy:290)
      at geb.ConfigurationLoader.getConf(ConfigurationLoader.groovy:226)
      at geb.ConfigurationLoader.doGetConfFromClass(ConfigurationLoader.groovy:200)
      at geb.ConfigurationLoader.getConf(ConfigurationLoader.groovy:95)
      at geb.ConfigurationLoader.getConf(ConfigurationLoader.groovy:114)
      at geb.spock.GebSpec.createConf(GebSpec.groovy:29)
      at geb.spock.GebSpec.createBrowser(GebSpec.groovy:33)
      at geb.spock.GebSpec.getBrowser(GebSpec.groovy:38)
      at geb.spock.GebSpec.methodMissing(GebSpec.groovy:51)
      at geb.spock.GebReportingSpec.setupSpec(GebReportingSpec.groovy:30)
  Caused by: java.lang.ExceptionInInitializerError
      at java.lang.Class.forName(Class.java:249)
      at groovy.util.ConfigSlurper.parse(ConfigSlurper.groovy:127)
      at geb.ConfigurationLoader.loadRawConfig(ConfigurationLoader.groovy:295)
      ... 10 more
  Caused by: java.lang.RuntimeException: No suitable ClassLoader found for grab
      at groovy.grape.GrapeIvy.chooseClassLoader(GrapeIvy.groovy:181)
      at groovy.grape.GrapeIvy.grab(GrapeIvy.groovy:247)
      at groovy.grape.GrapeIvy.grab(GrapeIvy.groovy:236)
      at groovy.grape.Grape.grab(Grape.java:129)
      ... 13 more
  </code></pre>