找不到类的定义：'com.saehyun.mcss.ui.SearchViewModel'。检查你的定义！错误答案

【问题标题】：No definition found for class:'com.saehyun.mcss.ui.SearchViewModel'. Check your definitions! Error找不到类的定义：'com.saehyun.mcss.ui.SearchViewModel'。检查你的定义！错误
【发布时间】：2022-01-01 21:25:42
【问题描述】：

我尝试使用 Koin 作为我的 D.I 来实现权限注入但是，执行视图模型时发生错误。

2021-11-23 18:50:20.144 9408-9408/com.saehyun.mcss E/AndroidRuntime: 致命异常: main 进程：com.saehyun.mcss，PID：9408 java.lang.RuntimeException：无法启动活动 ComponentInfo{com.saehyun.mcss/com.saehyun.mcss.feature.search.ui.SearchActivity}：org.koin.core.error.NoBeanDefFoundException：找不到类的定义：' com.saehyun.mcss.ui.SearchViewModel'。检查你的定义！在 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)

这是错误代码

基础应用

package com.saehyun.mcss.di

import android.app.Application
import com.saehyun.mcss.di.module.searchModule
import org.koin.android.ext.koin.androidContext
import org.koin.android.ext.koin.androidFileProperties
import org.koin.android.ext.koin.androidLogger
import org.koin.core.context.startKoin
import org.koin.dsl.module

class McssApplication : Application() {
    override fun onCreate() {
        super.onCreate()

        startKoin {
            androidContext(this@McssApplication)

            module {
                searchModule
            }

        }
    }
}

搜索模块

package com.saehyun.mcss.di.module

import com.saehyun.mcss.data.search.SearchRepository
import com.saehyun.mcss.feature.search.viewmodel.SearchViewModel
import org.koin.androidx.viewmodel.dsl.viewModel
import org.koin.dsl.module

val searchModule = module {
    factory { SearchRepository() }
    viewModel { SearchViewModel(get()) }
}

搜索库

package com.saehyun.mcss.data.search

import com.saehyun.mcss.data.searchApi
import com.saehyun.mcss.feature.search.model.McsrvstatusResponse
import retrofit2.Response

class SearchRepository {

    suspend fun serverInfo(serverIp: String) : Response<McsrvstatusResponse> {
        return searchApi.serverInfo(serverIp)
    }

}

搜索视图模型

package com.saehyun.mcss.feature.search.viewmodel

import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import com.saehyun.mcss.data.search.SearchRepository
import kotlinx.coroutines.launch

class SearchViewModel(
    private val repository: SearchRepository
    ) : ViewModel() {

    val toastMessage : MutableLiveData<String> = MutableLiveData()

    fun serverInfo(serverId: String) {
        viewModelScope.launch {
            val response = repository.serverInfo(serverId)

            if(response.isSuccessful) {
                toastMessage.value = "성공"
            } else {
                toastMessage.value = "실패"
            }
        }
    }

}

【问题讨论】：

标签： android kotlin dependency-injection runtime-error koin

【解决方案1】：

只需在您的settings.gradle 文件中添加jcenter() 存储库，然后同步项目。像这样，

dependencyResolutionManagement {
repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
repositories {
    google()
    mavenCentral()
    jcenter()
    maven { url "https://www.jitpack.io" }
  }
}

【讨论】：