Getting error "Can't create child on a synthetic root" in 6.3 | Community
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anushap40132887
Level 3
Jul 13, 2018 10:34 AM UTC
Solved

Getting error "Can't create child on a synthetic root" in 6.3

Hi All,

I am getting below error in aem 6.3 while trying to post a document to a folder in aem from another application. The same is working fine in aem 6.1. The user account used for this action is having full access.

*ERROR* [10.43.32.4 [1531475997878] POST /content/***/***/files HTTP/1.1] org.apache.sling.servlets.post.impl.operations.ModifyOperation Exception during response processing.

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

at org.apache.sling.resourceresolver.impl.ResourceResolverImpl.create(ResourceResolverImpl.java:1156)

at org.apache.sling.servlets.post.impl.operations.AbstractCreateOperation.deepGetOrCreateNode(AbstractCreateOperation.java:584)

at org.apache.sling.servlets.post.impl.operations.AbstractCreateOperation.processCreate(AbstractCreateOperation.java:107)

at org.apache.sling.servlets.post.impl.operations.ModifyOperation.doRun(ModifyOperation.java:91)

at org.apache.sling.servlets.post.AbstractPostOperation.run(AbstractPostOperation.java:97)

at org.apache.sling.servlets.post.impl.SlingPostServlet.doPost(SlingPostServlet.java:205)

at org.apache.sling.api.servlets.SlingAllMethodsServlet.mayService(SlingAllMethodsServlet.java:149)

at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:346)

at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:378)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:156)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMComponentFilter.filterRootInclude(WCMComponentFilter.java:375)

at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:190)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

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kautuk_sahni
kautuk_sahniAccepted solution
Employee
Aug 21, 2018 11:49 AM UTC

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

Kautuk Sahni
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2 replies

kautuk_sahni
kautuk_sahniAccepted solution
Employee
Aug 21, 2018 11:49 AM UTC

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

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Kautuk Sahni
user05162
Employee
Aug 17, 2018 1:28 PM UTC

The exception was occurring while AEM is trying to read the grandparent node(2 level above) and it's not able to read that node.

if ( ResourceUtil.isSyntheticResource(parent) ) {

            Resource grandParent = parent.getParent();

            if (grandParent != null) {

                this.create(grandParent, parent.getName(), null);

            } else {

                throw new IllegalArgumentException("Can't create child on a synthetic root");

            }

This was resolved by providing Read/Write access to the user where nodes were created?

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