Platform Exception Error when running app in release mode

[atifmakes]

Steps to Reproduce

3. When the login button is pressed in release mode the platform error occurs

Expected results: Successful Login

Actual results: E/flutter (27362): [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: PlatformException(UnknownGetUserError, Unknown Error, 400, null)
E/flutter (27362): #0 Snapkit.currentUser (package:snapkit/snapkit.dart:138)
E/flutter (27362):
E/flutter (27362): #1 Snapkit.login (package:snapkit/snapkit.dart:57)
E/flutter (27362):
E/flutter (27362):**

Logs

  info • This class (or a class that this class inherits from) is marked as '@immutable', but one or more of its instance fields aren't final: HomeScreen.snapchatUser •
          lib/Screens/HomeScreen.dart:21:7 • must_be_immutable
   info • 'overflow' is deprecated and shouldn't be used. Use clipBehavior instead. See the migration guide in flutter.dev/go/clip-behavior. This feature was deprecated
          after v1.22.0-12.0.pre. • lib/Screens/HomeScreen.dart:501:59 • deprecated_member_use
   info • 'Overflow' is deprecated and shouldn't be used. Use clipBehavior instead. See the migration guide in flutter.dev/go/clip-behavior. This feature was deprecated
          after v1.22.0-12.0.pre. • lib/Screens/HomeScreen.dart:502:63 • deprecated_member_use
   info • Cancel instances of dart.async.StreamSubscription • lib/Screens/Mainscreen.dart:22:36 • cancel_subscriptions
   info • Unused import: 'package:path_provider/path_provider.dart' • lib/Screens/NewSnapScreen.dart:11:8 • unused_import
   info • This class (or a class that this class inherits from) is marked as '@immutable', but one or more of its instance fields aren't final: NewSnapScreen.snapchatUser
          • lib/Screens/NewSnapScreen.dart:17:7 • must_be_immutable
   info • 'overflow' is deprecated and shouldn't be used. Use clipBehavior instead. See the migration guide in flutter.dev/go/clip-behavior. This feature was deprecated
          after v1.22.0-12.0.pre. • lib/Screens/NewSnapScreen.dart:227:13 • deprecated_member_use
   info • 'Overflow' is deprecated and shouldn't be used. Use clipBehavior instead. See the migration guide in flutter.dev/go/clip-behavior. This feature was deprecated
          after v1.22.0-12.0.pre. • lib/Screens/NewSnapScreen.dart:227:23 • deprecated_member_use
   info • 'overflow' is deprecated and shouldn't be used. Use clipBehavior instead. See the migration guide in flutter.dev/go/clip-behavior. This feature was deprecated
          after v1.22.0-12.0.pre. • lib/Screens/NewSnapScreen.dart:419:31 • deprecated_member_use
   info • 'Overflow' is deprecated and shouldn't be used. Use clipBehavior instead. See the migration guide in flutter.dev/go/clip-behavior. This feature was deprecated
          after v1.22.0-12.0.pre. • lib/Screens/NewSnapScreen.dart:419:41 • deprecated_member_use

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• No issues found!

[TimmyRB]

Are you using the example app or your own app?
Does the same error occur when using the Staging Client ID?
What platform & device are you running it on that causes this?
Please include your AndroidManifest.xml if this is happening on Android or your Info.plist if it happens on iOS

[atifmakes]

it's working completely fine on debug and profile mode but giving error in release mode.
same error with my own project as well as example with both staging and production Client ID
Running it on Android 10
**My Android.manifest: **

    <meta-data
        android:name="com.snapchat.kit.sdk.redirectUrl"
        android:value="unknown://snapchat/oauth2" />

    <meta-data
        android:name="com.snapchat.kit.sdk.scopes"
        android:resource="@array/snap_connect_scopes" />

    <activity
        android:name="com.snapchat.kit.sdk.SnapKitActivity"
        android:launchMode="singleTask">

        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />

            <!-- Change this to match your redirect URL -->
            <data
                android:scheme="unknown"
                android:host="snapchat"
                android:path="/oauth2" />
        </intent-filter>
    </activity>
    <provider
       android:name="androidx.core.content.FileProvider"
       android:authorities="${applicationId}.fileprovider"
       android:exported="false"
       android:grantUriPermissions="true">
       <meta-data
           android:name="android.support.FILE_PROVIDER_PATHS"
           android:resource="@xml/file_paths" />
   </provider>
    <activity
        android:name=".MainActivity"
        android:launchMode="singleTop"
        android:theme="@style/LaunchTheme"
        android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
        android:hardwareAccelerated="true"
        android:windowSoftInputMode="adjustResize">
       
        <meta-data
          android:name="io.flutter.embedding.android.NormalTheme"
          android:resource="@style/NormalTheme"
          />
        
        <meta-data
          android:name="io.flutter.embedding.android.SplashScreenDrawable"
          android:resource="@drawable/launch_background"
          />
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>
    <!-- Don't delete the meta-data below.
         This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
    <meta-data
        android:name="flutterEmbedding"
        android:value="2" />
</application>
<queries>
    <package android:name="com.snapchat.android"/>
</queries>

[TimmyRB]

It looks like you're missing quite a few things in your AndroidManifest.xml, make sure you followed the instructions on the Wiki

[atifmakes]

Example project is giving the same error and i have gone through android.manifest multiple times, please if you can let me know what i am missing there.

[TimmyRB]

I was able to reproduce this error, as far as I can tell the error occurs because you're using the Staging key from the Snapchat Developer Portal in a release build instead of the Production key which requires that your app is approved by Snapchat before it can be used, however I will do some more testing soon to make sure. If you're able to get your app approved by Snapchat, try switching to the Production key and let me know if your release build starts working once making the switch!

[atifmakes]

The app is approved from snapkit developer portal and I am using the production client id here with staging and production client id and it's working fine in debug and profile mode.

I am using this production key in my android.manifest file

[TimmyRB]

Where are you using the Production Key in your AndroidManifest.xml, the line to include it isn't in the code you provided as the top part of your AndroidManifest.xml is missing?

[atifmakes]

My bad, it is there but I forgot to copy that
here is my androidmanifest.xml

<application
    android:label="Unknown"
    android:usesCleartextTraffic="true"
    android:icon="@mipmap/ic_launcher">
    <meta-data
    android:name="com.google.firebase.messaging.default_notification_icon"
    android:resource="@drawable/logo" />
    <meta-data
        android:name="com.snapchat.kit.sdk.clientId"
        android:value="***************"/>
<meta-data
    android:name="com.snapchat.kit.sdk.redirectUrl"
    android:value="unknown://snapchat/oauth2" />

<meta-data
    android:name="com.snapchat.kit.sdk.scopes"
    android:resource="@array/snap_connect_scopes" />

<activity
    android:name="com.snapchat.kit.sdk.SnapKitActivity"
    android:launchMode="singleTask">

    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />

        <!-- Change this to match your redirect URL -->
        <data
            android:scheme="unknown"
            android:host="snapchat"
            android:path="/oauth2" />
    </intent-filter>
</activity>
<provider
   android:name="androidx.core.content.FileProvider"
   android:authorities="${applicationId}.fileprovider"
   android:exported="false"
   android:grantUriPermissions="true">
   <meta-data
       android:name="android.support.FILE_PROVIDER_PATHS"
       android:resource="@xml/file_paths" />

    <meta-data
      android:name="io.flutter.embedding.android.NormalTheme"
      android:resource="@style/NormalTheme"
      />
    
    <meta-data
      android:name="io.flutter.embedding.android.SplashScreenDrawable"
      android:resource="@drawable/launch_background"
      />
    <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
        <category android:name="android.intent.category.LAUNCHER"/>
    </intent-filter>
</activity>
<!-- Don't delete the meta-data below.
     This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
    android:name="flutterEmbedding"
    android:value="2" />