FYI, (4 years later, but..) if anyone else finds this needle in haystack and needs to organize their project in a similar way, due to ... client wants it that way. This should be fixed by adjusting the "Max hierarchy depth of install folders" setting in http://localhost:4502/system/console/configMgr/org.apache.sling.installer.provider.jcr.impl.JcrInstaller The default appears to be 4, which is one less than you need to organize your folders as desired.Of course, it would be nice if a helpful err...