添加applicationId，或者dokitExt

1. dokit版本：
   debugImplementation "com.didichuxing.doraemonkit:dokitx:3.3.5"
   releaseImplementation "com.didichuxing.doraemonkit:dokitx-no-op:3.3.5"
   classpath 'com.didichuxing.doraemonkit:dokitx-plugin:3.3.5'
2. 项目gralde版本：
   classpath "com.android.tools.build:gradle:4.0.1"
   buildToolsVersion 29.0.3
   distributionUrl= https://services.gradle.org/distributions/gradle-6.1.1-all.zip
3. 问题描述
   使用 apply plugin: 'com.didi.dokit'时，项目编译报错：
   Caused by: kotlin.KotlinNullPointerException at com.didichuxing.doraemonkit.plugin.processor.DoKitPluginConfigProcessor.process(DoKitPluginConfigProcessor.kt:69) at com.didichuxing.doraemonkit.plugin.DoKitPlugin$apply$1$1.execute(DoKitPlugin.kt:123) at com.didichuxing.doraemonkit.plugin.DoKitPlugin$apply$1$1.execute(DoKitPlugin.kt:28) at org.gradle.configuration.internal.DefaultListenerBuildOperationDecorator$BuildOperationEmittingAction$1.lambda$run$0(DefaultListenerBuildOperationDecorator.java:152) at org.gradle.configuration.internal.DefaultUserCodeApplicationContext.reapply(DefaultUserCodeApplicationContext.java:60) at org.gradle.configuration.internal.DefaultListenerBuildOperationDecorator$BuildOperationEmittingAction$1.run(DefaultListenerBuildOperationDecorator.java:152) at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402) at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394) at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250) at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158) at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92) at org.gradle.configuration.internal.DefaultListenerBuildOperationDecorator$BuildOperationEmittingAction.execute(DefaultListenerBuildOperationDecorator.java:149) at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:92) at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:80) at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42) at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:231) at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:150) at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58) at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:325) at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:235) at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:141) at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:37) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94) at com.sun.proxy.$Proxy29.afterEvaluate(Unknown Source) at org.gradle.configuration.project.LifecycleProjectEvaluator$NotifyAfterEvaluate$1.execute(LifecycleProjectEvaluator.java:191) at org.gradle.configuration.project.LifecycleProjectEvaluator$NotifyAfterEvaluate$1.execute(LifecycleProjectEvaluator.java:188) at org.gradle.api.internal.project.DefaultProject.stepEvaluationListener(DefaultProject.java:1434) at org.gradle.configuration.project.LifecycleProjectEvaluator$NotifyAfterEvaluate.run(LifecycleProjectEvaluator.java:197) ... 115 more

建议参考dokit.cn使用中心里的Android接入文档升级到最新版本试试