I am facing some issue using Room DB
java.lang.RuntimeException: cannot find implementation for com.zeliot.roomtuto.db.NoteDB. NoteDB_Impl does not exist
below is my app grale
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdk 31
defaultConfig {
applicationId "com.zeliot.roomtuto"
minSdk 23
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.constraintlayout:constraintlayout:2.1.0'
testImplementation 'junit:junit:4. '
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
//Room
def room_version = "2.3.0"
implementation "androidx.room:room-runtime:$room_version"
annotationProcessor "androidx.room:room-compiler:$room_version"
implementation "androidx.room:room-ktx:$room_version"
// Coroutine Lifecycle Scopes
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.1"
implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.3.1"
implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.3.1"
//coroutines
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.0'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.0'
}
@Entity(
tableName = "note"
)
data class Note(
@PrimaryKey(autoGenerate = true)
var id:Int?=null,
val title :String,
val desciption:String,
val datetime:String,
)
@Dao
interface NoteDao {
@Insert
fun insert(note: Note)
@Delete
fun delete(note: Note)
@Query("select * from note")
fun getNotes(): LiveData<List<Note>>
@Update
fun update(note: Note)
}
@Database(
entities = [Note::class],
version = 1
)
abstract class NoteDB :RoomDatabase() {
abstract fun getNoteDao():NoteDao
companion object{
@Volatile
private var instance : NoteDB? = null
fun createDB(context: Context) :NoteDB{
return instance ?:
Room.databaseBuilder(
context.applicationContext,
NoteDB::class.java,
"Note_db.db"
)
.build()
}
}
}
UNABLE TO GET THE ANSWER ,I HAVE TRIED MANY SOLUTIONS BUT DIDN'T WORK. I have tried many solution which are already available in stackoverflow but those solutions didnt work.
CodePudding user response:
Change :-
plugins {
id 'com.android.application'
id 'kotlin-android'
}
to
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt'
}
and then change
annotationProcessor "androidx.room:room-compiler:$room_version"
to
kapt "androidx.room:room-compiler:$room_version"
CodePudding user response:
In Apple M1 chip we need to use room version of 2.4.0-alpha04.
plugins {
id 'com.android.application'
id 'kotlin-android'
id'kotlin-kapt'
}
implementation "androidx.room:room-runtime:2.4.0-alpha04"
implementation "androidx.room:room-ktx:2.4.0-alpha04"
kapt "androidx.room:room-compiler:2.4.0-alpha04"
issue tracker link https://issuetracker.google.com/issues/174695268?pli=1#comment13