Why fails but works?

Question

I'm new to kotlin Android, today I want to build a database with room based on kotlin. I first to the offical guide of using room with kotlin. As the offical guide says, The dependencies for room are:

def room_version = "2.4.3"
implementation 'com.google.devtools.ksp:symbol-processing-api:1.7.20-1.0.7'
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"

So I add them to my module gradle file and try synchronizing Obviously, the building fails because I didn't enable kapt

So I refered to the officail guide of kapt: as the officail guide of kapt says, I only need to add:

plugins {
    id "org.jetbrains.kotlin.kapt" version "1.7.21"
}

to my module gradle file. I did so but the building process failed, it gave the reason:

Error resolving plugin [id: 'org.jetbrains.kotlin.kapt', version: '1.7.21']
> The request for this plugin could not be satisfied because the plugin is already on the classpath with an unknown version, so compatibility cannot be checked.

So I searh kapt withgoogle ang I got Could not find method kapt() for arguments Among the answers of the question, I try:

plugins {
    ...
    id 'kotlin-kapt'
}

And it worked. I want to know the reasons.

Appendix:

module gradle file:

    plugins {
        id 'com.android.library'
        id 'org.jetbrains.kotlin.android'
        id "org.jetbrains.kotlin.kapt" version "1.7.21"
    }
    
    android {
        namespace 'me.rexjz.database'
        compileSdk 33
    
        defaultConfig {
            minSdk 28
            targetSdk 33
            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 {
        def room_version = "2.4.3"
        implementation 'com.google.devtools.ksp:symbol-processing-api:1.7.20-1.0.7'
        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"
        implementation 'androidx.core:core-ktx:1.9.0'
        testImplementation 'junit:junit:4.13.2'
    //    implementation project(":common")
    } 

project gradle file:

buildscript {
    ext {
        compose_version = '1.3.1'
        compile_version = 33
    }
    repositories {
        google()
    }
}// Top-level build file where you can add configuration options common to all sub-projects/modules.

plugins {
    id 'com.android.application' version '7.3.1' apply false
    id 'com.android.library' version '7.3.1' apply false
    id 'org.jetbrains.kotlin.android' version '1.7.10' apply false
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

settings.gradle:

pluginManagement {
    repositories {
        gradlePluginPortal()
        google()
        mavenCentral()
    }
}
dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
        google()
        mavenCentral()
    }
}
rootProject.name = "CellExperimentAssistant"
include ':app'
include ':authentication'
include ':database'
include ':common'

I want to know Why id "org.jetbrains.kotlin.kapt" fails but id 'kotlin-kapt' works?