相关疑难解决方法(0)

我正在与Room持久性库集成.我在Kotlin有一个数据类,如:

@Entity(tableName = "story")
data class Story (
        @PrimaryKey val id: Long,
        val by: String,
        val descendants: Int,
        val score: Int,
        val time: Long,
        val title: String,
        val type: String,
        val url: String
)

这些@Entity和@PrimaryKey注释适用于Room库.当我尝试构建时,它失败并出现错误:

Error:Cannot find setter for field.
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

我也试过提供一个默认的构造函数:

@Entity(tableName = "story")
data class Story (
        @PrimaryKey val id: Long,
        val by: String,
        val descendants: Int,
        val score: Int, …