several config changes: app starts again

android/app/build.gradle

@@ -8,7 +8,7 @@ if (localPropertiesFile.exists()) {
 
 def flutterRoot = localProperties.getProperty('flutter.sdk')
 if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+    throw GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
 }
 
 def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
@@ -32,7 +32,7 @@ if (keystorePropertiesFile.exists()) {
 }
 
 android {
-    compileSdkVersion 31
+    compileSdkVersion 33
 
     lintOptions {
         disable 'InvalidPackage'

android/app/proguard.rules

@@ -0,0 +1 @@
+   -keep class net.sqlcipher.** { *; }

android/app/src/main/AndroidManifest.xml

@@ -11,6 +11,7 @@
         android:icon="@mipmap/launcher_icon">
         <activity
             android:name=".MainActivity"
+            android:exported="true"
             android:launchMode="singleInstance"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"