Json 导致此 Kotlin Retrofit2 错误的可能原因有哪些

造成这种Kotlin Retrofit2错误的可能原因是什么？当我使用enQueue对其进行编码时，我的JSON转换正确.我更新了它以使用延迟和响应，现在我收到了这个错误.

Unable to create converter for kotlinx.coroutines.Deferred<retrofit2.Response<com.smate.data.apiResponse.GenericApiResponse>>

它引用了我的代码的这一部分:

@Headers("Content-Type: application/json")
@POST("validIdentification")
suspend fun isValidIdentificationAsync(@Body identification: Identification): Deferred<Response<GenericApiResponse>>

下面是GenericApiResponse类:

package com.smate.data.apiResponse

import kotlinx.serialization.Serializable

@Serializable
data class GenericApiResponse(
    var isValid:String
) {
    val isValidBoolean: Boolean
        get() = isValid.toBoolean()
}

这是调用函数:

override suspend fun isValidIdentification(identification: Identification): ValidationResult {
    try {
        val response = sMateApiService.isValidIdentificationAsync(identification).await()
        if (response.isSuccessful) {
            val genericResponse: GenericApiResponse? = response.body()
            if (genericResponse != null) {
                return ValidationResult.Success(genericResponse.isValidBoolean)
            }
        } else {
            return ValidationResult.Error("API call failed")
        }
    } catch (e: Exception) {
        return ValidationResult.Error("An error occurred: ${e.message}")
    }

    return ValidationResult.Error("Unexpected error")
}

我在Gradle文件中实现了这些:

implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.0"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.0"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.0"