Migrate java class to Kotlin - Cannot resolve symbol annotate class - kotlin

Question

Android Studio 3.4.2
build.gradle:
buildscript {
ext.kotlin_version = '1.3.41'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.4.2'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
in app/build.gradle:
def AAVersion = '4.6.0'
def KOTLIN_COROUTINE_VERSION = '1.2.1'
dependencies {
annotationProcessor "org.androidannotations:androidannotations:$AAVersion"
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation('com.crashlytics.sdk.android:crashlytics:2.7.0#aar') { transitive = true; }
implementation 'com.google.android.material:material:1.1.0-alpha07'
implementation 'com.google.code.gson:gson:2.8.5'
implementation "org.androidannotations:androidannotations-api:$AAVersion"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$KOTLIN_COROUTINE_VERSION"
implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$KOTLIN_COROUTINE_VERSION"
}
I has activity (java class) annotate by org.androidannotations.annotations.EActivity
Here snippet:
import android.app.Activity;
import android.os.Bundle;
import org.androidannotations.annotations.EActivity
#EActivity
public class LoginActivity extends Activity {
}
And another java activity (SplashActivity.java) that call this LoginActivity like this:
import android.app.Activity;
import android.os.Bundle;
import org.androidannotations.annotations.EActivity
#EActivity
public class SplashActivity extends Activity {
Intent intent = new Intent(thisActivity, LoginActivity_.class);
startActivity(intent);
Nice it's work fine.
Now I migrate only LoginActivity to Kotlin class (LoginActivity.kt)
like this:
import org.androidannotations.annotations.Background
import org.androidannotations.annotations.EActivity
#EActivity
open class LoginActivity : Activity() {
}
and now SplashActivity.java has compile error in this line:
Intent intent = new Intent(thisActivity, LoginActivity_.class);
error message:
Cannot resolve symbol 'LoginActivity_'
P.S. If I remove "_" than compile success:
Intent intent = new Intent(thisActivity, LoginActivity.class);
But I need to use LoginActivity_

Answer 1

You have to use kapt instead of annotationProcessor to handle Kotlin files. Any annotation processor may or may not correctly handle them; for androidannotations in particular there is documentation on Kotlin support.