Problem with ABAQUAS embedded element in RC beam

Hi

I am using ABAQUAS to model a RC beam. I encountered a warning as follows which means that the reinforcement is not modelled in the host element:

1668 nodes on an embedded element do not lie in any host element. Check coordinates, exterior tolerance and absolute exterior tolerance parameters, and the host element set definition. The nodes have been identified in node set ErrNodeEmbeddedNode.

I appreciate any help to this problem, also, Is there any other ways for modelling reinforcement in ABAQUAS.

Thanks a lot.