Can't create child on a synthetic root

[#1]

I have recently upgrade my AEM instance from 6.3 to 6.5 and when I try to do Roll Out as admin, I get the Error: Can't create child on a synthetic root.

What does this error imply?

[#2]

Can you just check this with admin user or add everyone group to root folder(I do read that you having given full access)?

If this problem still persists then create a case with Support with Referring  CQ-4218938.

-Kautuk

[#3]

I have seen this exception in a few other use cases like folder creation, user creation etc. Can you provide the complete error message?

Is this happening only on Rollout process?

[#4]

Earlier it was happening only during roll out, now its happening for anything that I do, which requires node creation. Error:

*ERROR* [sling-default-3-Registered Service.5742] org.apache.sling.commons.scheduler.impl.QuartzScheduler Exception during job execution of job 'org.apache.sling.distribution.packaging.impl.ResourceDistributionPackageCleanup@2dad6271' with name 'Registered Service.5742' : Can't create child on a synthetic root

java.lang.IllegalArgumentException: Can't create child on a synthetic root

at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.create(ResourceResolverImpl.java:968) [org.apache.sling.resourceresolver:1.6.8]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:671) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:608) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:576) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:659) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:608) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:576) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:659) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:608) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:576) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:659) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:608) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:576) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:659) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:608) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:576) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResourceInternal(ResourceUtil.java:659) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:608) [org.apache.sling.api:2.18.4]

  at org.apache.sling.api.resource.ResourceUtil.getOrCreateResource(ResourceUtil.java:576) [org.apache.sling.api:2.18.4]

  at org.apache.sling.distribution.packaging.impl.DistributionPackageUtils.getPackagesRoot(DistributionPackageUtils.java:282) [org.apache.sling.distribution.core:0.4.0]

  at org.apache.sling.distribution.packaging.impl.ResourceDistributionPackageBuilder.getPackages(ResourceDistributionPackageBuilder.java:245) [org.apache.sling.distribution.core:0.4.0]

  at org.apache.sling.distribution.packaging.impl.ResourceDistributionPackageCleanup.run(ResourceDistributionPackageCleanup.java:60) [org.apache.sling.distribution.core:0.4.0]

  at org.apache.sling.commons.scheduler.impl.QuartzJobExecutor.execute(QuartzJobExecutor.java:347) [org.apache.sling.commons.scheduler:2.7.2]

  at org.quartz.core.JobRunShell.run(JobRunShell.java:202) [org.apache.sling.commons.scheduler:2.7.2]

  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

  at java.lang.Thread.run(Thread.java:745)

[#5]

Check out this post Getting error "Can't create child on a synthetic root" in 6.3  and try kautuksahni​'s suggestion.

[#6]

Hi,

Did u find any solution. I am also facing similar issue while installing package in aem 6.5

[#7]

Hi Srikanth,

The issue was due to missing permissions at the node level. You can add permissions to the required node from the Access Control Tab. Suppose I needed to add permissions to root level and also some specific permissions to var node. In my case I needed to add system users to those node and give the users permissions.

Regards,

Shaheena