Make Changes to able to run from flutter.

.run/main.dart.run.xml

@@ -0,0 +1,8 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="main.dart" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="additionalArgs" value="--dart-define=INTERSTITIAL_AD_UNIT_ID=ca-app-pub-2685698271254859/9922829329 --dart-define=DD_APPLICATION_ID=f8eabf3c-5db3-4f7e-8e6a-5a72433b46d2 --dart-define=DD_CLIENT_TOKEN=puba617ab01333a95a25a9d3709f04e1654" />
+    <option name="buildFlavor" value="prod" />
+    <option name="filePath" value="$PROJECT_DIR$/lib/main.dart" />
+    <method v="2" />
+  </configuration>
+</component>

lib/ad_helper.dart

@@ -22,11 +22,11 @@ enum AdType { Google, CAS }
 const privacyPolicy = 'https://lantern.io/privacy';
 
 const googleAttributes = {
-  'provider': AdType.Google,
+  'provider': "Google",
 };
 
 const casAttributes = {
-  'provider': AdType.CAS,
+  'provider': "CAS",
 };
 
 class AdHelper {

pubspec.yaml

@@ -144,9 +144,8 @@ flutter:
   # included with your application, so that you can use the icons in
   # the material Icons class.
   uses-material-design: true
-
-  module:
-    androidX: true
+#  module:
+#    androidX: true
 
   # To add assets to your application, add an assets section, like this:
   assets: