我刚刚获得Gradle1.4和Hadoop2.7.0。在我的Ubuntu14.04虚拟机上。我在Impatienttuturial存储库的Cascading的第1部分目录中。当我运行“gradlecleanjar”时，我得到以下信息:FAILURE:Buildfailedwithanexception.*Where:Buildfile'/home/Impatient/build.gradle'line:29*Whatwentwrong:Aproblemoccurredevaluatingrootproject'impatient'.>Couldnotfindmethodjcenter(