title: Flutter error: Could not download bcprov-jdk15on.jar (org.bouncycastle:bcprov-jdk15on:1.56)
body: <p>I'm failing to run my first ever Flutter App. Getting the below error.</p>
  
  <pre><code>Launching lib\main.dart on Android SDK built for x86 in debug mode...
  Initializing gradle...
  Resolving dependencies...
  * Error running Gradle:
  Exit code 1 from: 
  
  D:\PROJECTS\softwareProjects\AndroidProjects\flutter_app_2\android\gradlew.bat 
  app:properties:
  Download https://jcenter.bintray.com/org/bouncycastle/bcprov-jdk15on/1.56/bcprov-jdk15on-1.56.jar
  
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  A problem occurred configuring root project 'android'.
  &gt; Could not resolve all files for configuration ':classpath'.
     &gt; Could not download bcprov-jdk15on.jar (org.bouncycastle:bcprov-jdk15on:1.56)
  Finished with error: Please review your Gradle project setup in the android/ folder.
        &gt; Could not get resource 'https://jcenter.bintray.com/org/bouncycastle/bcprov-jdk15on/1.56/bcprov-jdk15on-1.56.jar'.
           &gt; Response 304: Not Modified has no content!
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
  
  * Get more help at https://help.gradle.org
  </code></pre>
  
  <p>Flutter doctor is not giving any problem
  output of flutter doctor: </p>
  
  <pre><code>Running flutter doctor...
  Doctor summary (to see all details, run flutter doctor -v):
  [√] Flutter (Channel beta, v0.1.5, on Microsoft Windows [Version 10.0.16299.309], locale en-IN)
  [√] Android toolchain - develop for Android devices (Android SDK 27.0.3)
  [√] Android Studio (version 3.0)
  [√] Connected devices (1 available)
  
  • No issues found!
  </code></pre>
  
  <p>Flutter Analysis gives some errors though!</p>
  
  <p><a href="https://i.stack.imgur.com/kpPi4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kpPi4.png" alt="enter image description here"></a></p>