android - java.lang.NoClassDefFoundError：解析失败：Lkotlin/KotlinPackage

Question

尝试在 Android Studio (3.6.+) 上运行 Kotlin 项目，然后出现此错误并且项目构建未完成。即使我创建了一个新项目，也找不到任何 kotlin 库。

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: infixsoft.xxxx.xxxx, PID: 28569
    java.lang.NoClassDefFoundError: Failed resolution of: Lkotlin/KotlinPackage;
        at infix.imrankst1221.codecanyon.ui.splash.SplashActivity.onCreate(SplashActivity.kt:30)
        at android.app.Activity.performCreate(Activity.java:7802)
        at android.app.Activity.performCreate(Activity.java:7791)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1299)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "kotlin.KotlinPackage" on path: DexPathList[[zip file "/data/app/infix.imrankst1221.rocket.web-M3pSn5Zd9TKPdhM0xxH9mA==/base.apk"],nativeLibraryDirectories=[/data/app/infix.imrankst1221.rocket.web-M3pSn5Zd9TKPdhM0xxH9mA==/lib/x86, /system/lib, /system/product/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at infix.imrankst1221.codecanyon.ui.splash.SplashActivity.onCreate(SplashActivity.kt:30)
        at android.app.Activity.performCreate(Activity.java:7802)
        at android.app.Activity.performCreate(Activity.java:7791)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1299)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

标签： androidandroid-studiokotlin

Answer 1

第 1 步：在构建 Gradle 中添加这个（应用级别）

dependencies {
  implementation 'com.android.support:multidex:1.0.3'
}

然后单击 Scyn Now。

第2步 ：

android {
    ...
    defaultConfig {
        ...
        multiDexEnabled true
    }

然后单击 Scyn Now。

最后一步单击运行。