Warning:Android-apt plugin is in

原因：更新Android studio到3.0后原来项目出现问题。

分析:尤其是采用butterknife工具的，采用新的Android Studio都会出现这样的问题，我根据提示最后猜测原因可能是Android studio更新，然后gradle更新了，这样的话可能使原来的android-apt工具跟不上节奏了，所以让采用annotationProcessor工具。

解决:把project下的build.gradle当中的依赖

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

repositories {

jcenter()

google()

}

dependencies {

classpath'com.android.tools.build:gradle:3.0.0-alpha7'

classpath'com.neenbedankt.gradle.plugins:android-apt:1.8'

//classpath 'com.tencent.mm:AndResGuard-gradle-plugin:1.2.0'

// NOTE: Do not place your application dependencies here; they belong

// in the individual module build.gradle files

}

}

allprojects {

repositories {

google()

jcenter()

maven {url"https://jitpack.io"}

}

}

task clean(type: Delete) {

deleterootProject.buildDir

}

修改成如下：

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

repositories {

jcenter()

google()

}

dependencies {

classpath'com.android.tools.build:gradle:3.0.0-alpha7'

//classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'

//classpath 'com.tencent.mm:AndResGuard-gradle-plugin:1.2.0'

// NOTE: Do not place your application dependencies here; they belong

// in the individual module build.gradle files

}

}

allprojects {

repositories {

google()

jcenter()

maven {url"https://jitpack.io"}

}

}

task clean(type: Delete) {

deleterootProject.buildDir

}

然后再修改Module.app里的build.grade里的配置

然后再把module下的build.gradle：

dependencies {compile'com.github.bumptech.glide:glide:3.7.0'

//butterknife

compile'com.jakewharton:butterknife:8.4.0'

annotationProcessor'com.jakewharton:butterknife-compiler:8.4.0'

//retrofit2

compile'com.squareup.retrofit2:retrofit:2.1.0'

compile'com.squareup.retrofit2:converter-gson:2.1.0'

compile'com.squareup.retrofit2:adapter-rxjava:2.0.1'

compile'com.squareup.okhttp3:logging-interceptor:3.3.0'

//materialicon

compile'net.steamcrafted:materialiconlib:1.1.1'

//dagger2

compile'com.google.dagger:dagger:2.0'

annotationProcessor'com.google.dagger:dagger-compiler:2.0'

再把apply plugin:

‘com.neenbedankt.android-apt ’这个引用给删除。

重新Build的一下