When attempting to compute a model, the following error message about one or more of the series in the stratigraphic pile may pop up.

This error message is triggered by an internal sanity check that verifies that every fault block in the model bears at least one interface point per series.

When computing a model, GeoModeller starts with the fault network and use the fault planes geometry to partition the model space into fault blocks. 

Series may only be interpolated based on the observed effect of those faults in terms of displacement vectors. 

If there is a lack of structural information in a fault block, it is impossible for the interpolator to draw the interfaces.

In this case, it is recommended to compute the model on Faults Only mode and then use the computed fault network model to determine where structural data is missing.