title: Flutter packages not recognised in Android Studio
body: <p>Flutter(1.22.5) packages are not recognized in Android Studio(Windows-10(64bit)),eventhough they are available in the <code>&quot;C:\src\flutter\packages\flutter\lib&quot;</code> directory.
  How to resolve this?</p>
  <p>Flutter path - C:\src\flutter<br />
  DartSdk path - C:\src\flutter\bin\cache\dart-sdk</p>
  <p>Packages -</p>
  <pre><code>C:\src\flutter&gt;cd &quot;C:\src\flutter\packages\flutter\lib&quot;
  
  C:\src\flutter\packages\flutter\lib&gt;dir
   Volume in drive C has no label.
   Volume Serial Number is 2EAF-73E1
  
   Directory of C:\src\flutter\packages\flutter\lib
  
  16-Dec-20  04:43 PM    &lt;DIR&gt;          .
  16-Dec-20  04:43 PM    &lt;DIR&gt;          ..
  16-Dec-20  04:43 PM             3,076 analysis_options_user.yaml
  16-Dec-20  04:43 PM             9,707 animation.dart
  16-Dec-20  04:43 PM             2,024 cupertino.dart
  16-Dec-20  04:43 PM             1,777 foundation.dart
  16-Dec-20  04:43 PM             1,216 gestures.dart
  16-Dec-20  04:43 PM             6,018 material.dart
  16-Dec-20  04:43 PM             2,464 painting.dart
  16-Dec-20  04:43 PM               677 physics.dart
  16-Dec-20  04:43 PM             3,170 rendering.dart
  16-Dec-20  04:43 PM               694 scheduler.dart
  16-Dec-20  04:43 PM               707 semantics.dart
  16-Dec-20  04:43 PM             1,664 services.dart
  16-Dec-20  04:43 PM    &lt;DIR&gt;          src
  16-Dec-20  04:43 PM             5,308 widgets.dart
                13 File(s)         38,502 bytes
                 3 Dir(s)  27,227,918,336 bytes free
  </code></pre>
  <p>main.dart -</p>
  <pre><code>    import 'package:flutter/material.dart';
      import 'C:\src\flutter\packages\flutter\lib\material.dart';
  
       
  </code></pre>
  <p>ERROR -</p>
  <pre><code>Error: Could not resolve the package 'flutter' in 'package:flutter/material.dart'.
  
         ^
  lib/main.dart:6:8: Error: Not found: 'package:flutter/material.dart'
  import 'package:flutter/material.dart';
         ^
  lib/main.dart:7:8: Error: Error when reading 'c:src%0Clutterpackages%0Clutterlibmaterial.dart': StandardFileSystem only supports file:* and data:* URIs
  import 'C:\src\flutter\packages\flutter\lib\material.dart';
  </code></pre>