解析 class Koin 的实例时出错

Error while resolving instance for class Koin

帮忙解决问题!(((我DI有3个modules,natworkModule里有一个retrofit对象,viewModelModule里有所有viewModels,respositoryModule里有所有对服务器的请求,我都是按照文档做的,但我在 Google 中找不到这个错误。提前谢谢你!!!对不起我的英语!)

class App : Application(){

    override fun onCreate() {
        super.onCreate()
        startKoin(this, listOf(natworkModule, viewModelModule,repositoryModule))
       }
    }


var natworkModule = module {

  single { createOkHttpClient() }
  single { createApiService<ApiService>(get () ,getProperty(SERVER_URL)) 

  }

}


const val SERVER_URL = "https://api.github.com/"

fun createOkHttpClient() : OkHttpClient{
   val httpLoggingInterceptor = HttpLoggingInterceptor()
   httpLoggingInterceptor.level = HttpLoggingInterceptor.Level.BASIC
   return OkHttpClient.Builder()
        .connectTimeout(60L, TimeUnit.SECONDS)
        .readTimeout(60L, TimeUnit.SECONDS)
        .addInterceptor(httpLoggingInterceptor).build()
   }

 inline fun <reified T> createApiService(okHttpClient: OkHttpClient,  url: String): T {
   val retrofit = Retrofit.Builder()
        .baseUrl(url)
        .client(okHttpClient)
        .addConverterFactory(GsonConverterFactory.create())
        .addCallAdapterFactory(LiveDataCallAdapterFactory()).build()
   return retrofit.create(T::class.java)
 }

var repositoryModule = module {
    factory<TestRepository> {
        TestRepositoryImpl(get())
    }

}

var viewModelModule = module {
    viewModel {
        TestViewModel(get())
    }
}

问题出在这个常数值上 -> SERVER_URL = "https://api.github.com/" Koin找不到它。因此有一个例外。感谢大家!!!