title: Flutter build error for the first time :Could not open settings remapped class cache for 7yvt6la2007dno98lt3rzbguf
body: <p>I just downloaded Flutter and tried to learn the emulator with the first default code which Google offered.
  But it does not run at all!</p>
  <p>I have the dart and flutter plugins installed.
  I also changed the order of jcenter() and google() too</p>
  <p>like this:</p>
  <pre><code>buildscript {
      ext.kotlin_version = '1.3.50'
      repositories {
          jcenter()
          google()
      }
  
     
  dependencies {
          classpath 'com.android.tools.build:gradle:3.5.0'
  
          classpath &quot;org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version&quot;
      }
  }
  
  allprojects {
      repositories {
          jcenter()
          google()
  
      }
  }
  </code></pre>
  <p>And the error is:</p>
  <pre><code>Launching lib/main.dart on Android SDK built for x86 in debug mode...
  Running Gradle task 'assembleDebug'...
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  Could not open settings remapped class cache for 7yvt6la2007dno98lt3rzbguf (/Users/[myname]/.gradle/caches/5.6.2/scripts-remapped/settings_7iv4l88jiyzeatj2wku74hwcv/7yvt6la2007dno98lt3rzbguf/settings8410a2d21ed2f87c8a0398566330ee52).
  &gt; Could not open settings generic class cache for settings file '/Users/[myname]/AndroidStudioProjects/test_app/android/settings.gradle' (/Users/[myname]/.gradle/caches/5.6.2/scripts/7yvt6la2007dno98lt3rzbguf/settings/settings8410a2d21ed2f87c8a0398566330ee52).
     &gt; BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 57
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
  
  * Get more help at https://help.gradle.org
  
  BUILD FAILED in 568ms
  Finished with error: Gradle task assembleDebug failed with exit code 1
  </code></pre>