Getting an AuthenticationSupport service missing. Cannot authenticate request.








I have AEM 6.5.4 and I am unable to login to the AEM publish instance over the 4503 port. When I try logging into the crx/de page, I am getting the below message :


Problem accessing /crx/packmgr/index.jsp. Reason:

    AuthenticationSupport service missing. Cannot authenticate request.

I am also unable to check the bundles state as I keep getting a pop up box to login even after entering the correct credentials. I have also tried the following but to no avail:


1) Stopped aem java process.

2) Removed the /crx-quickstart/repository/index folder.
3) Ran a consistency check but could not find any good revisions (Used oak-run-1.10.8.jar) :
java -Xmx6000m -jar oak-run-*.jar check --bin=-1 /path/to/crx-quickstart/repository/segmentstore

4) Removed all ./crx-quickstart/repository/segmentstore/*.bak files.

5) Ran the checkpoint clean-up to remove orphaned checkpoints:

java -Xmx6000m -jar oak-run-*.jar checkpoints /path/to/crx-quickstart/repository/segmentstore rm-unreferenced

6) Finally compacted the repository:

java -Xmx6000m -jar oak-run-*.jar compact /path/to/crx-quickstart/repository/segmentstore/


The compaction failed with the below error:

13:38:33.737 [main] ERROR o.a.j.o.s.SegmentNotFoundExceptionListener - Segment not found: 0a8221f8-e84d-4c6c-a91d-ee87067e9f1e. SegmentId age=29ms
org.apache.jackrabbit.oak.segment.SegmentNotFoundException: Segment 0a8221f8-e84d-4c6c-a91d-ee87067e9f1e not found


7) Started AEM and it throws the same error on the crx/de page.


Also, the error.log file shows the below error:

08.09.2020 13:10:50.627 *ERROR* [qtp249820188-60] handleSecurity: AuthenticationSupport service missing. Cannot authenticate request.
08.09.2020 13:10:50.628 *ERROR* [qtp249820188-60] handleSecurity: Possible reason is missing Repository service. Check AuthenticationSupport dependencies.


Please let me know how this can be resolved.



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Hi All, thanks for all the inputs but it didn't help me entirely in resolving the issue as the suggested solutions do not work if there are no good revisions available when we do a consistency check.


I did the following to resolve it:

1) Stopped AEM

2) Removed the older index folder

3) Performed a consistency check and found that there were no good revisions to revert to. I however did get the corrupted segment node as part of the output of consistency check as follows:


Error while traversing /home/users/2/2Y8HtRhIxmRRla0aPjHn/.tokens/28caaf0d-8c12-49a8-bb58-92729676b55c: org.apache.jackrabbit.oak.segment.SegmentNotFoundException: Segment 8d66dcf3-cdde-4146-a778-4c40ddc93ee1 not found


4) Added the below groovy script to delete the repo node:


import org.apache.jackrabbit.oak.spi.commit.CommitInfo
import org.apache.jackrabbit.oak.spi.commit.EmptyHook
import org.apache.jackrabbit.oak.spi.state.NodeStore
import org.apache.jackrabbit.oak.commons.PathUtils

def rmNode(def session, String path) {
    println "Removing node ${path}"

    NodeStore ns =
    def nb = ns.root.builder()

    def aBuilder = nb
    for(p in PathUtils.elements(path)) {  aBuilder = aBuilder.getChildNode(p) }

    if(aBuilder.exists()) {
        rm = aBuilder.remove()
        ns.merge(nb, EmptyHook.INSTANCE, CommitInfo.EMPTY)
        return rm
    } else {
        println "Node ${path} doesn't exist"
        return false



5) Entered the oak jackrabbit repo console with the below command:

java -jar oak-run-*.jar console crx-quickstart/repository/segmentstore --read-write


6) In the console, I navigated to the node and loaded the groovy script using :load <Groovy script name>

7) Removed the node in the console, using 

rmNode(session, "/home/users/2/2Y8HtRhIxmRRla0aPjHn")


8 ) Performed a consistency check and found a good revision to revert to


9) Reverted the repository to this revision by editing ./crx-quickstart/repository/segmentstore/journal.log and removed all lines after the line containing the latest good revision


10) Deleted the ./crx-quickstart/repository/segmentstore/*.bak files


11) Removed the orphaned checkpoints:

java -Xmx6000m -jar oak-run-*.jar checkpoints crx-quickstart/repository/segmentstore rm-unreferenced


12) Performed the offline tar compaction:

java -Xmx6000m -jar oak-run-*.jar compact crx-quickstart/repository/segmentstore/


13) Started AEM and I could then login!


Please note that the right version of the oak-run-*.jar file needs to be run for the corresponding version of AEM. For AEM 6.5.4, I used oak-run-1.10.8.jar 


Hope this answer helps someone as I don't see it documented anywhere.