从Java迁移到Kotlin

我有一个用Java编写的Android应用程序，但是我想把它转换成Kotlin。 我添加了Kotlin插件并配置了我的应用程序的gradle。

buildscript { ext.kotlin_version = '1.1.4-3' dependencies { classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' sourceSets { main.java.srcDirs += 'src/main/kotlin' } dependencies { compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" } 

我正在转换单个文件从Java到Kotlin使用 – 代码 – >转换Java文件到KOTLIN

转换后，我得到这个错误：

 Process: com.stockal.app, PID: 10633 java.lang.NoSuchMethodError: No static method zzb(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; in class Lcom/google/android/gms/common/internal/zzac; or its super classes (declaration of 'com.google.android.gms.common.internal.zzac' appears in /data/app/com.stockal.app-1/base.apk:classes75.dex) at com.google.firebase.provider.FirebaseInitProvider.zza(Unknown Source) at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source) at android.app.ActivityThread.installProvider(ActivityThread.java:5461) at android.app.ActivityThread.installContentProviders(ActivityThread.java:5032) at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4972) at android.app.ActivityThread.-wrap1(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1555) at android.os.Handler.dispatchMessage(Handler.java:111) at android.os.Looper.loop(Looper.java:207) at android.app.ActivityThread.main(ActivityThread.java:5776) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)