title: Error:Failed to resolve: recyclerview-v7
body: <p>when i add some dependency in my gradle and synced it set <strong>Error:Failed to resolve: recyclerview-v7.</strong>
  i don't know what can i do.i research many time, but not solve.
  i remove dependency but again error.</p>
  
  <p><strong>below my dependency:</strong></p>
  
  <pre><code>   apply plugin: 'com.android.application'
  android {
      compileSdkVersion 26
      defaultConfig {
          applicationId "avida.ican"
          minSdkVersion 16
          targetSdkVersion 26
          multiDexEnabled true
          versionCode 2
          versionName "0.0.2"
  
          /*vectorDrawables.useSupportLibrary = true*/
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
          vectorDrawables.useSupportLibrary = true
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  
      dependencies {
          implementation fileTree(include: ['*.jar'], dir: 'libs')
  
          //noinspection GradleCompatible
          implementation 'com.android.support:appcompat-v7:26.1.0'
          implementation 'com.android.support:design:26.1.0'
          implementation 'com.android.support.constraint:constraint-layout:1.1.0'
          implementation 'com.android.support:support-vector-drawable:26.1.0'
          implementation 'com.android.support:support-v4:26.1.0'
          implementation files('libs/ksoap2-android-assembly-3.6.2-jar-with-dependencies.jar')
          compile('com.stanfy:gson-xml-java:0.1.+') {
              exclude group: 'xmlpull', module: 'xmlpull' //xml to object
          }
          implementation 'com.android.support:cardview-v7:26.1.0'
          //________________________________________________
          //binding
          compile "com.jakewharton:butterknife:8.8.1"
          annotationProcessor "com.jakewharton:butterknife-compiler:8.8.1"
          //________________________________________________
  
          /*implementation 'com.afollestad.material-dialogs:core:0.9.6.0'*/
  
          implementation 'com.orhanobut:dialogplus:1.11@aar'
  
          //loading
          implementation 'com.wang.avi:library:2.1.3'
  
          //change font
          implementation 'uk.co.chrisjenx:calligraphy:2.3.0'
  
          // reactive network  checked
          implementation 'com.github.pwittchen:reactivenetwork-rx2:0.12.3'
  
          //contain FileUtils and another utils
          implementation 'commons-io:commons-io:2.5'
  
          //contain FileUtils and another utils
          implementation 'commons-codec:commons-codec:1.11'
  
          //otto bus
          implementation 'com.squareup:otto:1.3.8'
  
          implementation 'de.hdodenhof:circleimageview:2.2.0'
  
          //FloatingActionButton
          implementation 'com.github.clans:fab:1.6.4'
  
          //editore for text
          implementation 'jp.wasabeef:richeditor-android:1.2.2'
  
          //ormlite use in project sqlite database
          implementation 'com.j256.ormlite:ormlite-android:5.1'
  
          //file picker
          implementation 'com.github.angads25:filepicker:1.1.1'
  
          // recorder
          implementation 'com.github.adrielcafe:AndroidAudioRecorder:0.3.0'
  
          // image downloader
          implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
  
          //multy image,video Picker with list croper
          implementation 'com.crop.multiple:multipleImagePickerLib:1.4.4'
  
          implementation  'com.booking:rtlviewpager:1.0.1'
  
          //--------------------------Tab----Layout--------------------
          implementation 'com.ogaclejapan.smarttablayout:library:1.6.1@aar'
             //Optional
          implementation 'com.ogaclejapan.smarttablayout:utils-v13:1.6.1@aar'
          //------------------------------------------------------------------
  
          //expandable TextView
          compile 'com.ms-square:expandableTextView:0.1.4'
  
      }
  }
  </code></pre>
  
  <p><strong>below my project gradle:</strong></p>
  
  <pre><code>// Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  buildscript {
  
      repositories {
          google()
          jcenter()
          maven {
              url 'https://oss.sonatype.org/content/repositories/ksoap2-android-releases/'
          }
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.0.1'
          classpath 'com.jakewharton:butterknife-gradle-plugin:8.8.1'
          // 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" }
          maven {
              url 'http://dl.bintray.com/amulyakhare/maven'
          }
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  </code></pre>
  
  <p>I got tired please help me.</p>
  
  <p>now my gradle dosnt sync.</p>
  
  <p>i want add this dependency:
  <strong>compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'</strong></p>