title: package android.support.annotation does not exist
body: <p>my gradle code </p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 28
      defaultConfig {
          applicationId "gt.otomat7"
          minSdkVersion 22
          targetSdkVersion 28
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      implementation fileTree(dir: 'libs', include: ['*.jar'])
      implementation 'com.android.support:appcompat-v7:28.0.0-rc01'
      androidTestImplementation "com.android.support:support-annotations:27.1.1"
      implementation 'com.android.support.constraint:constraint-layout:1.1.2'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'com.android.support.test:runner:1.0.2'
      androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
      implementation project(':libraries:tess-two')
  }
  </code></pre>
  
  <p>But ı got an error about annotation does not exist I am using tesseract library and my android studio version </p>
  
  <pre><code>Android Studio 3.1.4
  Build #AI-173.4907809, built on July 24, 2018
  JRE: 1.8.0_152-release-1024-b02 amd64
  JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
  Windows 10 10.0
  </code></pre>
  
  <p>thank you for your helps</p>