[virgo-build] Build failed in Hudson: virgo.web.snapshot #278

[hudsonbuild@xxxxxxxxxxx]

See <https://hudson.eclipse.org/hudson/job/virgo.web.snapshot/278/>

------------------------------------------
Started by timer
Building remotely on hudson-slave2
Checkout:virgo.web.snapshot / <https://hudson.eclipse.org/hudson/job/virgo.web.snapshot/ws/> - hudson.remoting.Channel@4840b295:hudson-slave2
Using strategy: Default
Last Built Revision: Revision 49712d2a0cf2373556d176f37c3557b9832083cd (origin/master)
Commencing build of Revision 49712d2a0cf2373556d176f37c3557b9832083cd (origin/master)
FATAL: Error performing git submodule update
Command returned status code 1: Initialized empty Git repository in <https://hudson.eclipse.org/hudson/job/virgo.web.snapshot/ws/virgo-build/.git/>
fatal: Unable to find remote helper for 'https'
Clone of 'https://git.eclipse.org/gitroot/virgo/org.eclipse.virgo.virgo-build.git' into submodule path 'virgo-build' failed

hudson.plugins.git.GitException: Error performing git submodule update
Command returned status code 1: Initialized empty Git repository in <https://hudson.eclipse.org/hudson/job/virgo.web.snapshot/ws/virgo-build/.git/>
fatal: Unable to find remote helper for 'https'
Clone of 'https://git.eclipse.org/gitroot/virgo/org.eclipse.virgo.virgo-build.git' into submodule path 'virgo-build' failed

	at hudson.plugins.git.GitAPI.launchCommandIn(GitAPI.java:356)
	at hudson.plugins.git.GitAPI.launchCommand(GitAPI.java:321)
	at hudson.plugins.git.GitAPI.launchCommand(GitAPI.java:331)
	at hudson.plugins.git.GitAPI.submoduleUpdate(GitAPI.java:302)
	at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:900)
	at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:860)
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1899)
	at hudson.remoting.UserRequest.perform(UserRequest.java:114)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:270)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: hudson.plugins.git.GitException: Command returned status code 1: Initialized empty Git repository in <https://hudson.eclipse.org/hudson/job/virgo.web.snapshot/ws/virgo-build/.git/>
fatal: Unable to find remote helper for 'https'
Clone of 'https://git.eclipse.org/gitroot/virgo/org.eclipse.virgo.virgo-build.git' into submodule path 'virgo-build' failed

	at hudson.plugins.git.GitAPI.launchCommandIn(GitAPI.java:351)
	... 15 more