Abaqus Error Node

[RAGTS]

Hello,

Currently I have a model with a cantilever based indenter that will move into a tissue. Whenever I run the model, I get the following error message:'UNABLE TO LOCATE NODE SET ASSEMBLY_INDENTER-1_INDENTER-1-REFPT_. THE NODE SET MUST HAVE BEEN PREVIOUSLY DEFINED.'

What do i do about this?

 

[FEA way]

Check that reference point, it might be incorrectly attached to the indenter and may require redefining.