尝试使用android创建房间数据库，但一直收到依赖错误

Question

Android.com 说要将这些依赖项添加到您的 gradle 文件中。我不断在以kapt和ksp开头的行上遇到错误，说找不到这些方法。有什么想法吗？对不起，我不聪明。

//下面是android说要放进去的

def room_version = "2.3.0"

implementation("androidx.room:room-runtime:$room_version")
annotationProcessor "androidx.room:room-compiler:$room_version"

// To use Kotlin annotation processing tool (kapt)
kapt("androidx.room:room-compiler:$room_version")
// To use Kotlin Symbolic Processing (KSP)
ksp("androidx.room:room-compiler:$room_version")

// optional - Kotlin Extensions and Coroutines support for Room
implementation("androidx.room:room-ktx:$room_version")

// optional - RxJava2 support for Room
implementation "androidx.room:room-rxjava2:$room_version"

// optional - RxJava3 support for Room
implementation "androidx.room:room-rxjava3:$room_version"

// optional - Guava support for Room, including Optional and 
ListenableFuture
implementation "androidx.room:room-guava:$room_version"

// optional - Test helpers
testImplementation("androidx.room:room-testing:$room_version")

// optional - Paging 3 Integration
implementation("androidx.room:room-paging:2.4.0-alpha04")

构建文件 'C：\Users\tanne\AndroidStudioProjects\LazyAlarm\app\build.gradle' 行： 51

评估项目时出现问题:应用程序。

在org . grad le . API . internal . artifacts . DSL . dependencies . defaultdependencyhandler类型的对象上找不到参数[androidx . room:room-compiler:2 . 3 . 0]的方法kapt()

////////////////////////////////////////////下面的gradle文件

plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-android-extensions'
}

android {
compileSdk 31

defaultConfig {
    applicationId "com.example.lazyalarm"
    minSdk 22
    targetSdk 31
    versionCode 1
    versionName "1.0"


    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
    jvmTarget = '1.8'
}
}

 dependencies {

implementation 'androidx.core:core-ktx:1.6.0'
implementation 'androidx.appcompat:appcompat:1.3.1'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.room:room-ktx:2.3.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
def room_version = "2.3.0"

implementation("androidx.room:room-runtime:$room_version")
annotationProcessor "androidx.room:room-compiler:$room_version"

// To use Kotlin annotation processing tool (kapt)
kapt("androidx.room:room-compiler:$room_version")
// To use Kotlin Symbolic Processing (KSP)
ksp("androidx.room:room-compiler:$room_version")

// optional - Kotlin Extensions and Coroutines support for Room
implementation("androidx.room:room-ktx:$room_version")

// optional - RxJava2 support for Room
implementation "androidx.room:room-rxjava2:$room_version"

// optional - RxJava3 support for Room
implementation "androidx.room:room-rxjava3:$room_version"

// optional - Guava support for Room, including Optional and ListenableFuture
implementation "androidx.room:room-guava:$room_version"

// optional - Test helpers
testImplementation("androidx.room:room-testing:$room_version")

// optional - Paging 3 Integration
implementation("androidx.room:room-paging:2.4.0-alpha04")

}

Answer 1

以下内容对我有用。

>

settings.gradle

 pluginManagement {
 repositories {
     gradlePluginPortal()
     google()
 }
 plugins {
     id("com.google.devtools.ksp") version "1.6.20-1.0.5"
 }

KSP版本参考：Maven存储库：com.google.devtools.ksp

>

app/build.gradle

plugins {
  id 'com.google.devtools.ksp'    }

implementation("androidx.room:room-runtime:$rootProject.roomVersion")
annotationProcessor("androidx.room:room-compiler:$rootProject.roomVersion")
ksp("androidx.room:room-compiler:$rootProject.roomVersion")

build.gradle

 buildscript {  

 ext {
  // app dependencies
  kotlinVersion = '1.6.20'
  roomVersion = '2.4.2' }
 }

Answer 2

试试这个依赖

def room_version = "1.1.1"
implementation "android.arch.persistence.room:runtime:$room_version"
annotationProcessor "android.arch.persistence.room:compiler:$room_version"
testImplementation "android.arch.persistence.room:testing:$room_version"

Answer 3

您似乎已将一堆行复制到＜code＞构建中。gradle文件是谷歌文档中的逐字记录。不幸的是，他们的文档有问题。特别是，这些行中的许多表示选择，您需要选择您需要的。特别是，选择这两行中的一行：

kapt("androidx.room:room-compiler:$room_version")
ksp("androidx.room:room-compiler:$room_version")

...，然后选择以下四行之一：

implementation("androidx.room:room-ktx:$room_version")
implementation "androidx.room:room-rxjava2:$room_version"
implementation "androidx.room:room-rxjava3:$room_version"
implementation "androidx.room:room-guava:$room_version"

然后，根据您从第一对中的选择，您可能需要将另一个插件添加到文件顶部的plugins块中。如果选择kapt行，则需要添加id“kotlin kapt”。我没有使用ksp选项，也不知道您需要什么插件。