有人知道这个是什么原因造成的吗?
rror found by spectre during circuit read-in.
ERROR (SFE-23): "input.scs" 14: M1 is an instance of an undefined model nmos4.
ERROR (SFE-23): "input.scs" 15: M0 is an instance of an undefined model pmos4.
spectre terminated prematurely due to fatal error.