Node does not have a link while importing cables in 3DEC

An error is being displayed while importing cables from dxf file that the node does not have a link. How to identify the nodes and fix this error

The error should tell you which node does not have a link. Usually this means that a node lies outside of the model. You can plot the blocks, then plot the cables. In the attributes for the cable plot item, you can set the marker to be “node”. Then you can see if there are any nodes outside of the blocks.

Thanks for your reply