We are UG students, presenly working with Cadence Virtuoso. After creating a simple layout of an inverter, these are a few of the errors which appeared in the log file when we tried running Assura DRC check using NCSU_TechLib_ami06/divaDRC.rul. error: Illegal input layer 'geomGetEdge(geomAndNot(elec geomButting(elec elecHighres)))' found in drc(). error: Illegal input layer 'active' found in geomAnd(). error: Undefined layer - elecHighresEdge. Errors exist in the rules file '/home/chiptapeout/cadence/ncsu-cdk-1.5.1/lib/NCSU_TechLib_ami06/ divaDRC.rul'. *WARNING* Failed to build VDB. Cannot submit DRC Run. Assura DRC: State loaded "Last" Could anyone please help us out?