Quickstart deployment fails on AS 7.1.2 FINAL SNAPSHOT

13:28:33,528 INFO  [org.jboss.as.repository] (management-handler-thread - 2) JBAS014900: Content added at location C:\vkk\JBoss-AS7\jboss-as\build\target\jboss-as-7.1.2.Final-SNAPSHOT\standalone\data\
content\4d\edb3be50c23c5716da1531204d7b7ad71e5d85\content
13:28:33,550 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-10) JBAS015876: Starting deployment of "jboss-as-helloworld-jsf.war"
13:28:34,647 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-13) MSC00001: Failed to start service jboss.module.service."deployment.jboss-as-helloworld-jsf.war".main: org.jboss.msc.service.St
artException in service jboss.module.service."deployment.jboss-as-helloworld-jsf.war".main: JBAS018759: Failed to load module: deployment.jboss-as-helloworld-jsf.war:main
        at org.jboss.as.server.moduleservice.ModuleLoadService.start(ModuleLoadService.java:92) [jboss-as-server-7.1.2.Final-SNAPSHOT.jar:7.1.2.Final-SNAPSHOT]
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_27]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_27]
        at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_27]
Caused by: org.jboss.modules.ModuleNotFoundException: Module org.w3c.css.sac:main is not found in local module loader @5caf993e (roots: C:\vkk\JBoss-AS7\jboss-as\build\target\jboss-as-7.1.2.Final-SNAP
SHOT\modules)
        at org.jboss.modules.LocalModuleLoader.findModule(LocalModuleLoader.java:126) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.modules.ModuleLoader.loadModuleLocal(ModuleLoader.java:275) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.modules.ModuleLoader.preloadModule(ModuleLoader.java:222) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.modules.LocalModuleLoader.preloadModule(LocalModuleLoader.java:94) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.modules.Module.addPaths(Module.java:841) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.modules.Module.link(Module.java:1181) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.modules.Module.relinkIfNecessary(Module.java:1207) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.modules.ModuleLoader.loadModule(ModuleLoader.java:208) [jboss-modules.jar:1.1.1.GA]
        at org.jboss.as.server.moduleservice.ModuleLoadService.start(ModuleLoadService.java:71) [jboss-as-server-7.1.2.Final-SNAPSHOT.jar:7.1.2.Final-SNAPSHOT]