求助：在用一个元件有四个反向器，在生成ALLEGRO时报错,why、

U20是一个74lcx14,这是.log里的提示：#1 Error   [ALG0045] multiple pin 14's which have different nets connected for U20: SCHEMATIC1, JTAG (11.20, 4.90).Check for incorrect packaging of all devices in U20.

顶