java.lang.NoClassDefFoundError: org/apache/tools/ant/util/ReaderInputStream 错误

Error:gradle-resources-test:ddshow-hadoop-gradle: java.lang.NoClassDefFoundError: org/apache/tools/ant/util/ReaderInputStream

http://stackoverflow.com/questions/26989932/intellij-cant-run-gradle-project-due-to-missing-class

修复：
I encountered the same error in a Java project with multiple subprojects in IntelliJ 14.

Updating to 15.0.1, refreshing the Gradle projects via Views → Tool Windows → Gradle in IntelliJ and restarting fixed the issue.


Views → Tool Windows → Gradle   刷新后重启idea即可