Exception in thread "main" java.lang.RuntimeException: Error running command, re turn status !=0: C:\Users\Cullen\Desktop\empty\apache-maven-3.2.3/bin/mvn.bat in stall:install-file -Dfile=work\mapped.8eb82bde.jar -Dpackaging=jar -DgroupId=org .spigotmc -DartifactId=minecraft-server -Dversion=1.8-SNAPSHOT         at org.spigotmc.builder.Builder.runProcess(Builder.java:298)         at org.spigotmc.builder.Builder.main(Builder.java:172)