Unable to retrieve a list of remote deployment scanners

org.jboss.ide.eclipse.as.management.core.JBoss7ManangerException: org.jboss.ide.eclipse.as.management.core.JBoss7ManangerException: Could not execute "read-resource" for [
    {"subsystem" => "deployment-scanner"},
    {"scanner" => "*"}
]. Failure was "JBAS013493: System boot is in process; execution of remote management operations is not currently available".
	at org.jboss.ide.eclipse.as.internal.management.wildfly9.Wildfly9Manager.execute(Wildfly9Manager.java:361)
	at org.jboss.ide.eclipse.as.internal.management.wildfly9.Wildfly9ManagerService.execute(Wildfly9ManagerService.java:171)
	at org.jboss.ide.eclipse.as.management.core.JBoss7ManagerServiceProxy.execute(JBoss7ManagerServiceProxy.java:87)
	at org.jboss.ide.eclipse.as.management.core.service.DelegatingManagerService.execute(DelegatingManagerService.java:132)
	at org.jboss.ide.eclipse.as.management.core.JBoss7ManagerServiceProxy.execute(JBoss7ManagerServiceProxy.java:87)
	at org.jboss.ide.eclipse.as.core.server.internal.v7.AS7DeploymentScannerUtility$1.execute(AS7DeploymentScannerUtility.java:236)
	at org.jboss.ide.eclipse.as.core.server.internal.v7.AS7DeploymentScannerUtility$1.execute(AS7DeploymentScannerUtility.java:1)
	at org.jboss.ide.eclipse.as.management.core.JBoss7ManagerUtil.executeWithService(JBoss7ManagerUtil.java:136)
	at org.jboss.ide.eclipse.as.core.server.internal.v7.AS7DeploymentScannerUtility.executeWithResult(AS7DeploymentScannerUtility.java:234)
	at org.jboss.ide.eclipse.as.core.server.internal.v7.AS7DeploymentScannerUtility.getDeploymentScanners(AS7DeploymentScannerUtility.java:122)
	at org.jboss.ide.eclipse.as.core.server.internal.v7.AS7DeploymentScannerUtility.getDefaultDeploymentScanner(AS7DeploymentScannerUtility.java:212)
	at org.jboss.ide.eclipse.as.core.server.internal.v7.LocalJBoss7DeploymentScannerAdditions.loadDefaultScannerFromServer(LocalJBoss7DeploymentScannerAdditions.java:148)
	at org.jboss.ide.eclipse.as.core.server.internal.v7.LocalJBoss7DeploymentScannerAdditions.ensureScannersAdded(LocalJBoss7DeploymentScannerAdditions.java:58)
	at org.jboss.ide.eclipse.as.core.server.internal.AbstractDeploymentScannerAdditions.updateDeploymentScanners(AbstractDeploymentScannerAdditions.java:61)
	at org.jboss.ide.eclipse.as.core.server.internal.AbstractDeploymentScannerAdditions$1.run(AbstractDeploymentScannerAdditions.java:74)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.jboss.ide.eclipse.as.management.core.JBoss7ManangerException: Could not execute "read-resource" for [
    {"subsystem" => "deployment-scanner"},
    {"scanner" => "*"}
]. Failure was "JBAS013493: System boot is in process; execution of remote management operations is not currently available".
	at org.jboss.ide.eclipse.as.internal.management.wildfly9.Wildfly9Manager.execute(Wildfly9Manager.java:352)
	... 15 more