从java活动*.java开始kotlin活动*.kt？

Question

无效缓存/重启...帮助我!

我在java类中的代码是:

Intent intent = new Intent(view.getActivity(), AddPaymentActivity.class);
view.getActivity().startActivity(intent);

AddPaymentActivity有kotlin extention .kt
Got error java.lang.NoClassDefFoundError

Answer 1

文件->使缓存无效/重新启动...

Answer 2

就我而言，我忘了添加

classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

和

apply plugin: 'kotlin-android'
...
compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"

到 build.gradle

例子

项目 build.gradle

...
buildscript {
  ext.kotlin_version = '1.1.51'
  dependencies {
    classpath 'com.android.tools.build:gradle:3.0.1'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

    ...
  }
}

allprojects {
  repositories {
    jcenter()
    google()
  }
}

应用程序构建.gradle

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
...

dependencies {
  ...
  compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
}