Kotlin RC NoClassDefFoundError [英] Kotlin RC NoClassDefFoundError
问题描述
在将Kotlin更新为RC-1036之后,我面临一个奇怪的问题:我的代码甚至没有被编译和打包.
After updating kotlin to RC-1036 i'm facing a weird issue: my code is not even compiled and packed.
构建通过且应用启动后,我会得到ClassNotFoundException: Didn't find class "example.myapplication.MainActivity"
.
When build passes and the app is launched i'm getting ClassNotFoundException: Didn't find class "example.myapplication.MainActivity"
.
我尝试用apktool
反编译apk,但未在存档中找到我的类. build/intermediates
目录中也没有任何类.
I have tried to decompile apk with apktool
and didn't find my classes inside the archive. There are no classes in build/intermediates
dir either.
这是我的项目:
app/build.gradle
:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android-extensions'
buildscript {
ext.kotlin_version = '1.0.0-rc-1036'
repositories {
mavenCentral()
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
repositories {
mavenCentral()
}
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "example.myapplication"
minSdkVersion 21
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
}
}
sourceSets {
main.java.srcDirs += 'src/main/kotlin'
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.1'
compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
}
清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest package="example.myapplication"
xmlns:android="http://schemas.android.com/apk/res/android">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
和MainActivity
:
package example.myapplication
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_main.*
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
hello.text = "New text"
}
}
构建工具版本为2.0.0-beta2
;
sourseSets
可能有问题,但是如果我尝试以某种方式对其进行重新配置,则无济于事.感谢任何帮助.
Build tools version is 2.0.0-beta2
;
Might be something wrong with sourseSets
, though nothing works if i try to reconfigure it somehow. Appreciate any help.
推荐答案
您应该同时拥有这两个插件:
You should have both these plugins:
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
第一个确保Kotlin代码可编译,第二个用于UI导入.
The first makes sure the Kotlin code compiles, the second is for the UI imports.
这篇关于Kotlin RC NoClassDefFoundError的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!