title: flutter run for android failed - flutter.gradle' line: 991 - finished with non-zero exit value 1
body: <p>After flutter upgrade flutter to newest stable version I can't debug in android simulator. I get the following error:</p>
  <pre><code>Launching lib/main.dart on sdk gphone x86 in debug mode...
  </code></pre>
  <p>lib/main.dart:1
  ../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_webservice-0.0.19/lib/src/utils.dart:61:27: Error: The argument type 'String' can't be assigned to the parameter type 'Uri'.</p>
  <ul>
  <li>'Uri' is from 'dart:core'.
  return httpClient.get(url, headers: headers);
  ^
  ../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_webservice-0.0.19/lib/src/utils.dart:74:28: Error: The argument type 'String' can't be assigned to the parameter type 'Uri'.</li>
  <li>'Uri' is from 'dart:core'.
  return httpClient.post(url, body: body, headers: postHeaders);
  ^
  3</li>
  </ul>
  <p>FAILURE: Build failed with an exception.</p>
  <ul>
  <li><p>Where:
  Script '/Users/michael/Documents/Developer/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 991</p>
  </li>
  <li><p>What went wrong:
  Execution failed for task ':app:compileFlutterBuildDebug'.</p>
  </li>
  </ul>
  <blockquote>
  <p>Process 'command '/Users/michael/Documents/Developer/flutter/bin/flutter'' finished with non-zero exit value 1</p>
  </blockquote>
  <ul>
  <li><p>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.</p>
  </li>
  <li><p>Get more help at <a href="https://help.gradle.org" rel="nofollow noreferrer">https://help.gradle.org</a></p>
  </li>
  </ul>
  <p>BUILD FAILED in 33s
  Exception: Gradle task assembleDebug failed with exit code 1</p>