出现以下异常的原因是因为同包中有相同的类名了 Error:(73, 12) SensorReading is already defined as case class SensorReading case class SensorReading(id: String, timestamp: Long, temperature: Double) 管用请你点这里 相关文章: 2022-12-23 2022-01-02 2022-12-23 2021-07-12 2021-10-22 2022-12-23 2022-12-23 2022-12-23