title: package does not exist android studio
body: <p>I get the following error when trying to execute the following line of code. </p>
  
  <pre><code>import com.example.albert.helper.SessionManager;
  </code></pre>
  
  <p>Error:(15, 33) error: package com.example.albert.helper does not exist</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="false" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>apply plugin: 'com.android.library'
  
  android {
      compileSdkVersion 21
      buildToolsVersion '21.0.0'
  
      defaultConfig {
          minSdkVersion 14
          targetSdkVersion 22
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_7
          targetCompatibility JavaVersion.VERSION_1_7
      }
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      compile 'com.android.support:appcompat-v7:22.1.1'
  }</code></pre>
  </div>
  </div>
  </p>
  
  <p><img src="https://i.stack.imgur.com/RuR8d.png" alt="enter image description here"></p>