在grakn中定义游戏时，我们还必须分别定义游戏吗？

Question

定义t1子实体，扮演员工；

UNKNOWN: ai.grakn.exception.GraqlQueryException: employee doesn't have an 'isa', a 'sub' or an 'id'. Please check server logs for the stack trace.

Answer 1

此employee doesn't have an 'isa', a 'sub' or an 'id'意味着您尚未在架构中定义employee，因此Grakn不知道如何解释： define t1 sub entity, plays employee;

请确保define employee sub role;