Petals Distribution

ERROR on command 'deploy': org.ow2.petals.admin.api.exception.ArtifactAdministrationException: org.ow2.petals.admin.api.artifact.ArtifactException: java.lang.NullPointerException
org.ow2.petals.cli.api.command.exception.CommandException: org.ow2.petals.admin.api.exception.ArtifactAdministrationException: org.ow2.petals.admin.api.artifact.ArtifactException: java.lang.NullPointerException
	at org.ow2.petals.cli.shell.command.Deploy.execute(Deploy.java:183)
	at org.ow2.petals.cli.shell.AbstractShell.evaluate(AbstractShell.java:291)
	at org.ow2.petals.cli.shell.AbstractShell.evaluate(AbstractShell.java:312)
	at org.ow2.petals.cli.shell.PetalsInteractiveCli.run(PetalsInteractiveCli.java:82)
	at org.ow2.petals.cli.Main.run(Main.java:228)
	at org.ow2.petals.cli.Main.main(Main.java:157)
Caused by: org.ow2.petals.admin.api.exception.ArtifactAdministrationException: org.ow2.petals.admin.api.artifact.ArtifactException: java.lang.NullPointerException
	at org.ow2.petals.admin.api.ArtifactAdministration.deployAndStartArtifact(ArtifactAdministration.java:74)
	at org.ow2.petals.cli.shell.command.Deploy.execute(Deploy.java:165)
	... 5 more
Caused by: org.ow2.petals.admin.api.artifact.ArtifactException: java.lang.NullPointerException
	at org.ow2.petals.admin.api.artifact.ArtifactUtils.createArtifact(ArtifactUtils.java:188)
	at org.ow2.petals.admin.api.artifact.ArtifactUtils.createArtifact(ArtifactUtils.java:111)
	at org.ow2.petals.admin.api.ArtifactAdministration.deployAndStartArtifact(ArtifactAdministration.java:71)
	... 6 more
Caused by: java.lang.NullPointerException
	at java.util.zip.ZipFile.getInputStream(ZipFile.java:192)
	at org.ow2.petals.admin.api.artifact.ArtifactUtils.extractJbiXml(ArtifactUtils.java:198)
	at org.ow2.petals.admin.api.artifact.ArtifactUtils.createArtifact(ArtifactUtils.java:156)
	... 8 more