Buenas tardes, estoy intentando compilar hace unos días los fuentes de libertya y obtengo este error.
Tengo bien configuradas las variables de entorno Java y path. Y también probe compilando en Linux y obtengo el mismo error.

BUILD FAILED
/home/flor/libertya/org.libertya/utils_dev/build.xml:32:
The following error occurred while executing this line:
/home/flor/libertya/org.libertya/install/build.xml:216:
Problem creating zip:
/home/flor/libertya/install/ServidorOXP_V16.04.zip
(No such file or directory)
(and the archive is probably corrupt but I could not delete it)

Total time: 35 seconds
MailLogger failed to send e-mail!
java.net.UnknownHostException: xxx
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:195)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.<init>(Socket.java:375)
at java.net.Socket.<init>(Socket.java:189)
at org.apache.tools.mail.MailMessage.connect(MailMessage.java:391)
at org.apache.tools.mail.MailMessage.<init>(MailMessage.java:174)
at org.apache.tools.ant.listener.MailLogger.sendMail(MailLogger.java:200)
at org.apache.tools.ant.listener.MailLogger.buildFinished(MailLogger.java:134)
at org.apache.tools.ant.Project.fireBuildFinished(Project.java:1848)
at org.apache.tools.ant.Main.runBuild(Main.java:688)
at org.apache.tools.ant.Main.startAnt(Main.java:187)
at org.apache.tools.ant.Main.start(Main.java:150)
at org.apache.tools.ant.Main.main(Main.java:240)
total 8
drwxr-xr-x 2 root root 4096 nov 14 11:18 .
drwxr-xr-x 24 root root 4096 nov 14 11:18 ..
Todo hecho …

Alguien sabe a que se debe?
Gracias