【FAQ】License for package ConstraintLayout for Android 1.0.2 not accepted

如題，在執行gradle的時候報錯：

Checking the license for package Solver for ConstraintLayout 1.0.2 in /usr/local/android-sdk-linux/licenses
Warning: License for package Solver for ConstraintLayout 1.0.2 not accepted.
Checking the license for package ConstraintLayout for Android 1.0.2 in /usr/local/android-sdk-linux/licenses
Warning: License for package ConstraintLayout for Android 1.0.2 not accepted.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':setting'.
> You have not accepted the license agreements of the following SDK components:
  [ConstraintLayout for Android 1.0.2, Solver for ConstraintLayout 1.0.2].
  Before building your project, you need to accept the license agreements and complete the installation of the missing components using the Android Studio SDK Manager.
  Alternatively, to learn how to transfer the license agreements from one workstation to another, go to http://d.android.com/r/studio-ui/export-licenses.html

build.gradle 編寫如下：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.0"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
    compile project(path: ':widget')
    compile project(path: ':platform')
    compile project(path: ':account')
}

看提示是說，需要接受證書，並使用android sdk manager 安裝缺少的組件。

所以按需要的版本，使用sdkmanager安裝並接受許可就好了：

$ANDROID_HOME/tools/bin/sdkmanager "extras;m2repository;com;android;support;constraint;constraint-layout;1.0.2" 
$ANDROID_HOME/tools/bin/sdkmanager "extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.2"