Bug report: I am using Linux/Ubuntu Version EasyEDA. When my circuit contains LM317 (LM317EE), it gives the error "the circuit has components without simulation model : gnd". Without LM317, simulation works. The LM317 comes from the EElib (Commonly Library). Added: It seems that it is due to the variable resistor not chosen from simulation's EElib. However, the error message is misleading.