Greendao bean序列化出现的 问题！

报错：

Found 1 problem(s) parsing "/home/zjs/Desktop/websocketTest/app/src/main/java/com/example/websockettest/dao/TerminalBean.java". First problem:
Pb(96) The serializable class TerminalBean does not declare a static final serialVersionUID field of type long (536871008 at line 12).
Run gradle with --info for more details.

解决：
@Entity public class TerminalBean implements Serializable { static final long serialVersionUID = 42L;