title: Could not resolve "import android.support.v7.widget.GridLayout; " in Android Studio new project
body: <p>I tried to use GridLayout as</p>
  
  <pre><code>GridLayout maingrid=(GridLayout)findViewById(R.id.mainGridView);
  </code></pre>
  
  <p>But it was crashing my application.
  Surfing internet for the problem gave solution that i should use </p>
  
  <pre><code>android.support.v7.widget.GridLayout; 
  </code></pre>
  
  <p>instead of <code>android.widget.GridLayout;</code> but while using this i am getting error could not resolve v7.</p>
  
  <p>Searched for this problem and got many solution to update <strong>build.gradle</strong> file but it also fails by build. </p>
  
  <p>build.gradle file  Initially:</p>
  
  <pre><code>// Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  buildscript {
      repositories {
          google()
          jcenter()
  
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.4.2'
          implementation 'com.android.support:cardview-v7:21.+'
          implementation 'com.android.support:recyclerview-v7:21.+'
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          google()
          jcenter()
  
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  </code></pre>
  
  <p>After updating:</p>
  
  <pre><code>    // Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  buildscript {
      repositories {
          google()
          jcenter()
  
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.4.2'
          implementation fileTree(dir: 'libs', include: ['*.jar'])
          implementation 'com.android.support:appcompat-v7:26.1.1'
          implementation 'com.android.support.constraint:constraint-layout:1.0.2'
          implementation 'com.android.support:design:26.1.1'
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          google()
          jcenter()
  
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  
  android {
      compileSdkVersion 26
      buildToolsVersion "26.0.2"
  
      defaultConfig {
          minSdkVersion 16
          targetSdkVersion 26
      }
  }
  </code></pre>
  
  <p>please help me in resolving this issue</p>