'error: [MissingType]: Element 'xxxxx.AppDatabase.room' references a type that is not present
error: [MissingType]: Element 'xxxxx.AppDatabase.room' references a type that is not present
I get the mentioned error in the title when I try to compile my code. It seems that I have a problem with Room which causes this. Kotlin kapt gives this error. How can I solve it?
Project Level Gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.5.31'
repositories {
google()
jcenter()
maven { url 'https://jitpack.io' }
}
dependencies {
classpath 'com.android.tools.build:gradle:4.0.2'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.31"
classpath 'com.google.gms:google-services:4.3.10'
def nav_version = "2.3.5"
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
mavenCentral()
maven { url 'https://jitpack.io' }
maven { url "https://maven.google.com" } // Google's Maven repository
maven { url 'https://developer.huawei.com/repo/' } // HUAWEI Maven repository
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
App level Gradle
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt'
}
android {
compileSdkVersion 31
buildToolsVersion "30.0.0"
flavorDimensions "default"
viewBinding {
enabled = true
}
defaultConfig {
applicationId "com.ege.altaga"
minSdkVersion 21
targetSdkVersion 31
versionCode 1
versionName "1.0"
multiDexEnabled true
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
signingConfigs {
release {
storeFile file("key.keystore.jks")
storePassword 'android'
keyAlias 'altaga'
keyPassword 'android'
}
}
buildTypes {
debug {
minifyEnabled false
shrinkResources false
debuggable true
aaptOptions.cruncherEnabled = false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
// resValue("string", "google_device_verification_api_key", "AIzaSyDNLDM08-vLp9uszlNJH1SJW1y7oUqsA-U")
}
release {
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
minifyEnabled true
shrinkResources false
debuggable false
signingConfig signingConfigs.release
zipAlignEnabled true
// resValue("string", "google_device_verification_api_key", "AIzaSyDNLDM08-vLp9uszlNJH1SJW1y7oUqsA-U")
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
// coreLibraryDesugaringEnabled true
}
configurations {
cleanedAnnotations
compile.exclude group: 'org.jetbrains', module: 'annotations'
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:1.4.32"
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.4.0'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
implementation 'androidx.navigation:navigation-fragment-ktx:2.3.5'
implementation 'androidx.navigation:navigation-ui-ktx:2.3.5'
implementation 'com.github.bumptech.glide:glide:4.12.0'
implementation 'com.google.code.gson:gson:2.8.7'
implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
implementation 'io.reactivex:rxjava:1.1.6'
implementation 'io.reactivex:rxandroid:1.2.1'
implementation 'com.squareup.retrofit2:adapter-rxjava:2.1.0'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.4.0'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0'
kapt 'com.github.bumptech.glide:compiler:4.12.0'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.4.0'
def room_version = "2.4.0-beta02"
implementation "androidx.room:room-ktx:$room_version"
kapt "androidx.room:room-compiler:$room_version"
// annotationProcessor "androidx.room:room-compiler:$room_version"
// optional - RxJava2 support for Room
implementation "androidx.room:room-rxjava2:$room_version"
}
AppDatabase class
package com.ege.altaga.data
import android.content.Context
import androidx.room.Database
import androidx.room.Room
import androidx.room.RoomDatabase
import com.ege.altaga.data.database.player.PlayerDAO
import com.ege.altaga.data.database.player.PlayerEntity
import com.ege.altaga.data.database.square.SquareDAO
import com.ege.altaga.data.database.square.SquareEntity
@Database(entities = [(PlayerEntity::class),(SquareEntity::class)],version = 1)
abstract class AltagaDB : RoomDatabase() {
abstract fun playerDAO() : PlayerDAO<PlayerEntity>
abstract fun squareDAO() : SquareDAO<SquareEntity>
companion object {
@Volatile var instance: AltagaDB? = null
fun getDatabase(context: Context): AltagaDB =
instance ?: synchronized(this) { instance ?: buildDatabase(context.applicationContext).also { instance = it } }
private fun buildDatabase(appContext: Context) =
Room.databaseBuilder(appContext, AltagaDB::class.java, "AltagaDB")
.fallbackToDestructiveMigration()
.build()
}
}
Solution 1:[1]
I had the same problem while using room v2.4.1 with kotlin v1.5.31. The solution was to change kotlin version to 1.6.0.
Solution 2:[2]
maybe u can try invalidate caches, go to file -> invalidate caches.. -> then click button Invalidate and Restart for me it works well with tha same error code
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Kozma Zoltán Balázs |
| Solution 2 | luthfirrDz |