fix build gradle

Author: anoochit

android/app/build.gradle

@@ -60,20 +60,13 @@ android {
         versionName flutterVersionName
     }
 
-    // buildTypes {
-    //     release {
-    //         // TODO: Add your own signing config for the release build.
-    //         // Signing with the debug keys for now, so `flutter run --release` works.
-    //         signingConfig signingConfigs.debug
-    //     }
-    // }
-
     // keystore information
     signingConfigs {
         release {
             keyAlias keystoreProperties['keyAlias']
             keyPassword keystoreProperties['keyPassword']
-            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            //storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storeFile = file('key.jks')
             storePassword keystoreProperties['storePassword']
         }
     }
@@ -82,6 +75,7 @@ android {
         release {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
+            minifyEnabled true
             signingConfig signingConfigs.release
         }
     }