I have my build.gradle file set up and my project is working good so far. The problem now is when i run ./gradlew run, it fails with the error : What went wrong: Execution failed for task ‘:run’. Process ‘command ‘/usr/lib/jvm/java-7-openjdk-amd64/bin/java” finished with non-zero exit value 1 ./gradlew build BUILD SUCCESSFULLY, Any clue as to why, Have also tried to