Cadence Orcad 157

Error code 157 (or "Error 157: Unable to get required license") typically indicates:

In older versions, transferring constraints from schematic to layout (OrCAD PCB Editor / Allegro) was often a game of telephone—prone to errors. 17.7 allows the engineer to define electrical constraints (signal integrity rules, differential pair spacing, propagation delays, max via counts) directly within the Capture environment. cadence orcad 157