KIE Business Central Installation Failed

I've tried to install Business Workbench from the drools site here on the latest WildFly server, but I've always gotten the error message below:

{"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"business-central.war\".WeldStartService" => "Failed to start service

Caused by: org.jboss.weld.exceptions.DeploymentException: Exception List with 2 exceptions:

Exception 0 :

org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type KeyCloakUserManager with qualifiers @Default

at injection point [BackedAnnotatedParameter] Parameter 1 of [BackedAnnotatedConstructor] @Inject public org.uberfire.ext.security.management.keycloak.

KCCredentialsUserManagementService(KeyCloakUserManager, KeyCloakGroupManager, CredentialsClientFactory, @Named UberfireRoleManager)

at org.uberfire.ext.security.management.keycloak.KCCredentialsUserManagementService.<init>(KCCredentialsUserManagementService.java:0)

WELD-001474: Class org.uberfire.ext.security.management.keycloak.KeyCloakUserManager is on the classpath, but was ignored because a class it references was not found:

org.jboss.resteasy.client.ClientResponseFailure from [Module \"deployment.business-central.war\" from Service Module Loader].

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:378)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:290)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.bootstrap.Validator.validateGeneralBean(Validator.java:143)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:164)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:526)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:64)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:62)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:62)

at org.jboss.weld.core@3.1.9.Final//org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:55)

at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)

at java.base/java.lang.Thread.run(Thread.java:1589)

at org.jboss.threads@2.4.0.Final//org.jboss.threads.JBossThread.run(JBossThread.java:513)

Exception 1 :

org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type KeyCloakGroupManager with qualifiers @Default

at injection point [BackedAnnotatedParameter] Parameter 2 of [BackedAnnotatedConstructor] @Inject public org.uberfire.ext.security.management

.keycloak.KCAdapterUserManagementService(KeyCloakUserManager, KeyCloakGroupManager, KCAdapterClientFactory, HttpServletRequest, @Named UberfireRoleManager)

at org.uberfire.ext.security.management.keycloak.KCAdapterUserManagementService.<init>(KCAdapterUserManagementService.java:0)

WELD-001474: Class org.uberfire.ext.security.management.keycloak.KeyCloakGroupManager is on the classpath,

but was ignored because a class it references was not found: org.jboss.resteasy.client.ClientResponseFailure from [Module \"deployment.business-central.war\"

from Service Module Loader].