Unity:unity spine shader报错Spine-Skeleton-PMA-Additive，could‘t open include file ??

Unity打包报错：unity spine shader报错Spine-Skeleton-PMA-Additive，could‘t open include file ??

解决办法：打开shader ，加个回车，再回到unity 编译一下就好了，应该是存在缓存报错了没有更新。