It seems that the targeteditor is including a component, which has the resource type set to /apps/granite/ui/components/coral/foundation/form/textfield.
I doubt that this AEM ootb,because it would not reference "/apps". Please check your code your /apps folder if a resource has that path set as resourceType or resourceSuperType.
Actually, the resourcetype is granite/ui/components/coral/foundation/form/textfield, and it should not have a leading /apps or /libs; although that this works, but it effectively disables the overlaying mechanics of the product. Which is not a problem if you are not a product developer... but I consider it as a bad practice.