radius theme is not showing

[haque2ehsan]

radius theme is not showing in Admin Theme menu. I have tried to change the theme.properties file with following

parent=base
import=common/keycloak

then its shows the theme in the menu, but getting this error:

2025-10-07 21:54:21,299 ERROR [org.keycloak.services.error.KeycloakErrorHandler] (executor-thread-1) Uncaught server error: org.keycloak.theme.FreeMarkerException: Failed to process template index.ftl
at org.keycloak.theme.freemarker.DefaultFreeMarkerProvider.processTemplate(DefaultFreeMarkerProvider.java:52)
at org.keycloak.services.resources.admin.AdminConsole.getMainPage(AdminConsole.java:394)
at org.keycloak.services.resources.admin.AdminConsole$quarkusrestinvoker$getMainPage_f305e6c813b406d69819c8bb4d528a99970bde98.invoke(Unknown Source)
at org.jboss.resteasy.reactive.server.handlers.InvocationHandler.handle(InvocationHandler.java:29)
at io.quarkus.resteasy.reactive.server.runtime.QuarkusResteasyReactiveRequestContext.invokeHandler(QuarkusResteasyReactiveRequestContext.java:183)
at org.jboss.resteasy.reactive.common.core.AbstractResteasyReactiveContext.run(AbstractResteasyReactiveContext.java:147)
at io.quarkus.vertx.core.runtime.VertxCoreRecorder$15.runWith(VertxCoreRecorder.java:645)
at org.jboss.threads.EnhancedQueueExecutor$Task.doRunWith(EnhancedQueueExecutor.java:2651)
at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2630)
at org.jboss.threads.EnhancedQueueExecutor.runThreadBody(EnhancedQueueExecutor.java:1622)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1589)
at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:11)
at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:11)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: freemarker.template.TemplateNotFoundException: Template not found for name "index.ftl".
The name was interpreted by this TemplateLoader: org.keycloak.theme.freemarker.DefaultFreeMarkerProvider$ThemeTemplateLoader@4cbf3b7.
at freemarker.template.Configuration.getTemplate(Configuration.java:2957)
at freemarker.template.Configuration.getTemplate(Configuration.java:2777)
at org.keycloak.theme.freemarker.DefaultFreeMarkerProvider.getTemplate(DefaultFreeMarkerProvider.java:66)
at org.keycloak.theme.freemarker.DefaultFreeMarkerProvider.processTemplate(DefaultFreeMarkerProvider.java:45)
... 14 more

[pschiffe]

I think I'm also having this issue, cannot select the radius admin theme, and when I choose base, I get the same error.

[vzakharchenko]

Thanks for reporting!
I’m busy with other tasks now, but I’ll check this and try to fix the theme soon.
I’ll update the issue when it’s ready.