问题

Gradle DSL method not found: 'kapt()'

Possible causes:

The project 'jetpacklearn' may be using a version of the Android Gradle plug-in that does not contain the method (e.g. 'testCompile' was added in 1.1.0).

Upgrade plugin to version 3.4.0 and sync project

The project 'jetpacklearn' may be using a version of Gradle that does not contain the method.

Open Gradle wrapper file

My gradleVersion is '3.4.0', but can not deal with it , ask me the same question

classpath "com.android.tools.build:gradle:$gradleVersion"

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

classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$navigationVersion"

回答1:

Check if you have this in top of your app build.gradle?

apply plugin: 'kotlin-kapt'

回答2:

add this line

apply plugin: 'kotlin-kapt'

if you used kapt in android library you must add kotlin-android plugin in your project

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-kapt'

回答3:

Add this in your build.gradle then sync the gradle again.

apply plugin: 'kotlin-kapt'

回答4:

just add this line in your app-level of build.grale :

apply plugin: 'kotlin-kapt'

NOTE: under apply plugin: 'com.android.application'

来源：https://stackoverflow.com/questions/56100431/gradle-dsl-method-not-found-kapt