“`
compile ‘com.android.support:appcompat-v7:26.+’
compile ‘com.android.support:design:26.+’

这个两个一定要匹配

apply plugin: ‘com.android.application’

android {
compileSdkVersion 26
buildToolsVersion “26.0.0”

defaultConfig {
    applicationId "com.example.tablayout"
    minSdkVersion 14
    targetSdkVersion 26
    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-v7:26.+’
compile ‘com.android.support.constraint:constraint-layout:1.0.2’
compile ‘com.android.support:design:26.+’
compile ‘com.android.support:support-v4:26.+’
testCompile ‘junit:junit:4.12’
}

“`