AEM 6.5.11 HTTP ERROR 503 AuthenticationSupport service missing.

[arvind]

Hi Team,

AEM Version: 6.5.11

Arc type used : 33

After every re-start, we get this error:

HTTP ERROR 503 AuthenticationSupport service missing. Cannot authenticate request.

URI:STATUS:MESSAGE:SERVLET:

/aem/start.html

503

AuthenticationSupport service missing. Cannot authenticate request.

org.apache.felix.http.base.internal.dispatch.DispatcherServlet-34738d2e

Regards,

AP

[Himanshu_Jain]

Are you able to open /crx/explorer or /system/console .

Try to check bundle status .

[arvind]

Hello All,

We have got the root cause of this issue.

Maven archtype 33 causes this issue. 

Here is the link:

• https://github.com/adobe/aem-project-archetype/issues/893

Solutions:

1) So, we need to use other version.

    OR 

2) With same archtype 33, we need to fix repo init osgi config script 

as below :

https://github.com/adobe/aem-project-archetype/issues/852

Regards,

AP

[Jörg_Hoh · Accepted solution]

I recently wrote a blog post specifically for that issue. As it is a very broad topic with a lot of possible reasons, I just outlined the most popular reasons:

https://cqdump.joerghoh.de/2022/03/17/how-to-analyze-authentication-support-missing/

[Love_Sharma]

Deleting repoinit folder from my AEM instance fixed this issue for me. Either you can run below command

 rm -rf crx-quickstart/launchpad/config/org/apache/sling/jcr/repoinit OR delete the folder manually. 

Blog post which Jorg mentioned, also talk about repoinit as one of the reason for getting this error.