title: Error: Failed to resolve: com .android.support:appcompat-v7:24.2.0
body: <p>[Failed to resolve: com .android.support:appcompat-v7:24.2.0]
  i tried 24.0.0 - 24.1.0 - 24.1.1 and the same error has founded</p>
  
  <p>Here is my gradle file </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 24
      buildToolsVersion '24.0.1'
      defaultConfig {
          applicationId "com.xxxx.xxxxxxx"
  
          manifestPlaceholders = [manifestApplicationId          : "${applicationId}",
                                  onesignal_app_id               : "xxxxxxxxxxx",
                                  onesignal_google_project_number: "xxxxxxxxxxxxx"]
  
          minSdkVersion 14
          targetSdkVersion 24
          versionCode 8
          versionName "3.2"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      productFlavors {
      }
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      testCompile 'junit:junit:4.12'
      compile 'com.android.support:appcompat-v7:24.2.0'
      compile files('libs/libGoogleAnalyticsServices.jar')
      compile files('libs/universal-image-loader-1.9.1.jar')
      compile 'com.google.android.gms:play-services:7.0.0'
      compile 'it.neokree:MaterialTabs:0.11'
      compile 'com.edmodo:cropper:1.0.1'
      compile 'com.getbase:floatingactionbutton:1.10.1'
      compile 'com.onesignal:OneSignal:2.+@aar'
  }</code></pre>
  </div>
  </div>
  </p>
  
  <p>i hope to resolve this error</p>