title: Could not find com.android.support:appcompat-v7:28.0.3
body: <p>I can't solve this problem, please help me! I've got the following error:</p>
  
  <pre><code>Could not find com.android.support:appcompat-v7:28.0.3.
  Searched in the following locations:
      file:/C:/invincible/extras/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.pom
      file:/C:/invincible/extras/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.jar
      file:/C:/invincible/extras/google/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.pom
      file:/C:/invincible/extras/google/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.jar
      file:/C:/invincible/extras/android/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.pom
      file:/C:/invincible/extras/android/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.jar
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.pom
      file:/C:/Program Files/Android/Android Studio/gradle/m2repository/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.jar
      https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.pom
      https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.jar
      http://jcenter.bintray.com/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.pom
      http://jcenter.bintray.com/com/android/support/appcompat-v7/28.0.3/appcompat-v7-28.0.3.jar
  Required by:
      project :app
  
  Please install the Android Support Repository from the Android SDK Manager.
  Open Android SDK Manager
  </code></pre>
  
  <p>I tried to download, but there shows this:</p>
  
  <pre><code>{
    "errors" : [ {
      "status" : 404,
      "message" : "Could not find resource"
    } ]
  }
  </code></pre>
  
  <p>and my <code>build.gradle</code> shows Gradle project sync failed. Basic functionality will not work properly.</p>
  
  <p>my <code>build.gradle</code> code:</p>
  
  <pre><code>***android {
      compileSdkVersion 28
      defaultConfig {
          applicationId "com.example.myapplication"
          minSdkVersion 15
          targetSdkVersion 28
          buildToolsVersion "28.0.3"
          versionCode 1
          versionName "1.0.2"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          customDebugType {
              debuggable true
          }
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
          debug {
              debuggable true
          }
      }
      buildToolsVersion '28.0.3'
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_8
          targetCompatibility JavaVersion.VERSION_1_8
      }
      productFlavors {
      }
      dexOptions {
          incremental true
      }
  }
  dependencies {
      implementation fileTree(include: ['*.jar'], dir: 'libs')
      implementation 'com.android.support:appcompat-v7:28.0.3'
      implementation "com.android.support:support-core-utils:28.0.3"
      implementation 'com.android.support.constraint:constraint-layout:1.1.3'
      implementation 'com.android.support:design:28.0.3'
      implementation 'com.android.support:exifinterface:28.0.3'
      implementation 'com.android.support:support-v4:28.0.3'
      implementation 'com.google.firebase:firebase-core:16.0.4'
      androidTestImplementation 'com.android.support.test:rules:1.0.2'
      implementation 'com.google.android.gms:play-services-maps:16.0.0'
      implementation 'com.google.firebase:firebase-core:16.0.4'
      implementation 'com.android.support:support-media-compat:28.0.3'
      implementation 'com.google.firebase:firebase-auth:16.0.4'
      implementation 'com.google.firebase:firebase-database:16.0.3'
      implementation 'com.google.firebase:firebase-storage:16.0.3'
      implementation 'com.squareup.picasso:picasso:2.71828'
      implementation 'com.google.android.gms:play-services-places:16.0.0'
  }
  apply plugin: 'com.google.gms.google-services'***
  </code></pre>
  
  <p>I'm sorry for my English and please help me</p>