android - 尝试使用android创建房间数据库，但不断出现依赖错误

Question

Android.com 说要将这些依赖项添加到您的 gradle 文件中。我在以 kapt 和 ksp 开头的行中不断收到错误，说找不到这些方法。有任何想法吗？对不起，我不聪明。
//下面是android说要放入的内容

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 ':app' 时出现问题。

Could not find method kapt() for arguments [androidx.room:room-compiler:2.3.0] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

///////////////////////////////////
//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

您似乎已将一堆行复制到您的build.gradle 中。逐字逐句地从 Google 的文档中获取。不幸的是，他们的文档有问题。特别是，其中许多行代表选择，您需要选择您需要的那些。特别是，选择以下两行之一:

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

...并选择以下四行之一:

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，根据您对第一对的选择，您可能需要将另一个插件添加到您的 plugins block 在文件的顶部。如果您选择kapt行，您需要添加 id 'kotlin-kapt' .我没用过ksp选项，不知道你需要什么插件，如果有的话。