occur error for deployed my organization

when i make a organization and username at bonita 7.7.2 or 7.7.5 32bit or 64bit (windows 8.1) i cant deploy it because occur error for synchronization.
error reason is
An error occured during synchronization
org.bonitasoft.studio.actors.operation.PublishOrganizationOperation.run(PublishOrganizationOperation.java:103)
org.bonitasoft.studio.actors.ui.handler.InstallOrganizationHandler.execute(InstallOrganizationHandler.java:76)
org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:291)
org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:92)
sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:305)
org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:239)
org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
org.eclipse.core.commands.Command.executeWithChecks(Command.java:494)
org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:390)
org.bonitasoft.studio.actors.ui.handler.DeployOrganizationHandler$1.run(DeployOrganizationHandler.java:126)
org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119)