DataBase_Impl does not exist

[Anu07]

Error:cannot find implementation for com.application.room.UserDataBase.

Hi,I have followed your tutorial.But getting an error regarding implementation of Database abstract class.Please help me!!

[ritesh-singh]

https://stackoverflow.com/questions/47274677/room-cannot-find-implementation

https://stackoverflow.com/questions/44417136/room-persistence-library-run-time-exception-when-calling-rooms-inmemorybuilder-m/44582509

Can you check here, if your issues falls in these categories.

[ritesh-singh]

Closing this issue, it can be solved by following one of the above solution.

[ameybhandarkar]

Nope. None of the above solutions worked for me.

[pierretsap]

I had the same issue. I finally resolved it by adding these lines in my graddle file :

def room_version = "2.2.3" // be sure to have the latest version of room
implementation "androidx.room:room-runtime:$room_version"
annotationProcessor "android.arch.persistence.room:compiler:$room_version"

[duttabhishek0]

Adding to @pierretsap if you are not using androidx, then adding the following would help:

 // ViewModel and Live Data
 implementation "android.arch.lifecycle:extensions:1.1.1"
 kapt "android.arch.lifecycle:compiler:1.1.1"

 // Room
 implementation "android.arch.persistence.room:runtime:1.1.1"
 kapt "android.arch.persistence.room:compiler:1.1.1

Also do add apply plugin 'kotlin-kapt' in your app's build.gradle

[AungHtetKyawWho]

yes. Thanks a bunch

On Sun, May 8, 2022, 9:22 PM Abhishek Dutt @.***> wrote:

Adding to @pierretsap https://github.com/pierretsap if you are not using androidx, then adding the following would help:

// ViewModel and Live Data implementation "android.arch.lifecycle:extensions:1.1.1" kapt "android.arch.lifecycle:compiler:1.1.1"

// Room implementation "android.arch.persistence.room:runtime:1.1.1" kapt "android.arch.persistence.room:compiler:1.1.1

Also do add apply plugin 'kotlin-kapt' in your app's build.gradle

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[dhiru909]

but i am getting error please help