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Troubleshooting

Building Groovy script using Grapes & Grab with Gradle

Problem:

* What went wrong:
Execution failed for task ':compileGroovy'.
> org/apache/ivy/core/report/ResolveReport
[...]
* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':compileGroovy'.
[...]
Caused by: java.lang.NoClassDefFoundError: org/apache/ivy/core/report/ResolveReport
	at org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:167)
	at org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:54)
	at org.gradle.api.internal.tasks.compile.daemon.CompilerDaemonServer.execute(CompilerDaemonServer.java:55)
	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:364)
	... 2 more
Caused by: java.lang.ClassNotFoundException: org.apache.ivy.core.report.ResolveReport
	... 8 more

Solution: Add the ivy configuration (see the example).

apply plugin: 'groovy'

repositories {
  mavenCentral()
}

configurations {
  ivy
}

dependencies {
  compile group: 'org.codehaus.groovy', name: 'groovy', version: '2.4.6'
  ivy group: 'org.apache.ivy', name: 'ivy', version: '2.4.0'
}

tasks.withType(GroovyCompile) {
  groovyClasspath += configurations.ivy
}

"That said, a better approach is to manage dependencies with Gradle."

(Source: http://stackoverflow.com/questions/18173908/error-compiling-a-groovy-project-using-grab-annotation)