一个关于android studio的问题

Error:(6, 0) Could not find method useLibrary() for arguments [org.apache.http.legacy] on project ':app'.
Open File
这个问题怎么解决啊
build.gradle
apply plugin: 'com.android.application'

android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
useLibrary 'org.apache.http.legacy'
defaultConfig {
applicationId "com.example.a23734.myapplication"
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'])
//以下SDK开发者请根据需要自行选择
//bmob-sdk：Bmob的android sdk包，包含了Bmob的数据存储、文件等服务，以下是最新的bmob-sdk:
//3.5.5：请务必查看下面注释[1]
compile 'cn.bmob.android:bmob-sdk:3.5.5'
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'
testCompile 'junit:junit:4.12'
}