Developer Guide
SDK Integration
Unreal SDK

Troubleshooting - Unreal SDK

Last updated February 21, 2025

iOS

Problem

Users may see the domain of passwords stored with the Password AutoFill feature as airbridge.io or abr.ge.

Cause

After setting up deep links for the Airbridge SDK, if you utilize the Password AutoFill feature, the domain is saved as the applinks domain of the Airbridge deep link, which is airbridge.io or abr.ge.

Solution

The problem can be solved by setting up the webcredentials domain used in the Password AutoFill.

1. Prepare the domain that will store the password.

2. Host the JSON below at https://YOUR_DOMAIN/.well-known/apple-app-site-association with Content-Type: application/json. Your prepared domain should be entered instead of YOUR_DOMAIN.

You can find the App ID Prefix and Bundle ID in the [Identifiers]>[YOUR_APP] menu of the Apple Developer Portal.

12345
{
    "webcredentials": {
        "apps": ["YOUR_APP_ID_PREFIX.YOUR_BUNDLE_ID"]
    }
}

3. Navigate to [YOUR_PROJECT]>[Signing & Capabilities] in Xcode.

4. Click + Capability to add Associated Domains. Enter webcredentials:YOUR_DOMAIN in Associated Domains.

Android

Issue

A coroutine dependency error occurs during the build process with the following message.

Text

1234
java.lang.NoClassDefFoundError: kotlin/coroutines/AbstractCoroutineContextKey
    at java.base/java.lang.ClassLoader.defineClass1(Native Method)
    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
  ...

Cause

If the kotlinx-coroutines-core library version is 1.3.5 or later, the kotlin-stdlib library version must be at a certain level or later.

Solution

Check whether the kotlin-stdlib library version is v.1.3.70 or later with the gradlew dependencies command. If the version is earlier than v.1.3.70, you need to update it.

Issue

Deeplink Open events that occur through the push notifications generated by the Braze SDK are not collected by Airbridge. Instead, the App Open event is collected.

Cause

The Airbridge Android SDK uses the dataString in the action and intent of the Activity to distinguish between Deeplink Open events and App Open events.

When a user opens the app through a push notification using the Braze SDK, the app goes through NotificationTrampolineActivity. This activity handles push notifications, but the dataString is not included in its action and intent, preventing the SDK from determining if it's a Deeplink Open event or an App Open event.

Solution

Add a custom Application class (CustomApplication.java) file as shown below.

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package com.company.product;

import android.app.Activity;

import com.epicgames.ue4.GameApplication;

import org.jetbrains.annotations.Nullable;
import org.jetbrains.annotations.NotNull;

import co.ab180.airbridge.AirbridgeLifecycleIntegration;
import co.ab180.airbridge.ue.AirbridgeUnreal;

public class CustomApplication extends GameApplication {

    @Override
    public void onCreate() {
        super.onCreate();

        AirbridgeUnreal.setLifecycleIntegration(new AirbridgeLifecycleIntegration() {

            @Nullable
            @Override
            public String getDataString(@NotNull Activity activity) {
                if (activity.getClass().getName().equals("com.braze.push.NotificationTrampolineActivity")
                        && activity.getIntent() != null
                        && activity.getIntent().getExtras() != null
                ) {
                    return activity.getIntent().getExtras().getString("uri");
                }
                return null;
            }
        });
    }
}

12345678910111213141516171819202122232425262728293031323334
package com.company.product;

import android.app.Activity;

import com.epicgames.unreal.GameApplication;

import org.jetbrains.annotations.Nullable;
import org.jetbrains.annotations.NotNull;

import co.ab180.airbridge.AirbridgeLifecycleIntegration;
import co.ab180.airbridge.ue.AirbridgeUnreal;

public class CustomApplication extends GameApplication {

    @Override
    public void onCreate() {
        super.onCreate();

        AirbridgeUnreal.setLifecycleIntegration(new AirbridgeLifecycleIntegration() {

            @Nullable
            @Override
            public String getDataString(@NotNull Activity activity) {
                if (activity.getClass().getName().equals("com.braze.push.NotificationTrampolineActivity")
                        && activity.getIntent() != null
                        && activity.getIntent().getExtras() != null
                ) {
                    return activity.getIntent().getExtras().getString("uri");
                }
                return null;
            }
        });
    }
}

Add a custom application class to the Android Manifest file using Unreal Plugin Language (UPL), as shown below.

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<?xml version="1.0" encoding="utf-8"?>
<root xmlns:android="http://schemas.android.com/apk/res/android">
	
    <prebuildCopies>
        <copyDir src="$S(PluginDir)/..." dst="$S(BuildDir)/src/com/company/product" />
    </prebuildCopies>
    
	<androidManifestUpdates>
		<addAttribute tag="application" name="android:name" value="com.company.product.CustomApplication"/>
	</androidManifestUpdates>
	
</root>

Issue

The "Manifest merger failed" error occurrs during the build process.

Cause

The Airbridge SDK's AndroidManifest.xml includes rules to opt-out of backing up the Shared Preferences data. The purpose of this rule is to avoid retaining the same Airbridge settings during the reinstallation of the app so that new installs or reinstalls can be detected accurately.

Merging Airbridge SDK backup rules with your app backup rules can cause conflicts.

Solution

Below are the opt-out rules defined in the Airbridge SDK.

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<?xml version="1.0" encoding="utf-8"?>
<data-extraction-rules>
    <cloud-backup>
        <exclude domain="sharedpref" path="airbridge-internal" />
        <exclude domain="sharedpref" path="airbridge-install" />
        <exclude domain="sharedpref" path="airbridge-user-info" />
        <exclude domain="sharedpref" path="airbridge-user-alias" />
        <exclude domain="sharedpref" path="airbridge-user-attributes" />
        <exclude domain="sharedpref" path="airbridge-device-alias" />
        <exclude domain="database" path="airbridge.db" />
    </cloud-backup>
    <device-transfer>
        <exclude domain="sharedpref" path="airbridge-internal" />
        <exclude domain="sharedpref" path="airbridge-install" />
        <exclude domain="sharedpref" path="airbridge-user-info" />
        <exclude domain="sharedpref" path="airbridge-user-alias" />
        <exclude domain="sharedpref" path="airbridge-user-attributes" />
        <exclude domain="sharedpref" path="airbridge-device-alias" />
        <exclude domain="database" path="airbridge.db" />
    </device-transfer>
</data-extraction-rules>

12345678910
<?xml version="1.0" encoding="utf-8"?>
<full-backup-content>
    <exclude domain="sharedpref" path="airbridge-internal" />
    <exclude domain="sharedpref" path="airbridge-install" />
    <exclude domain="sharedpref" path="airbridge-user-info" />
    <exclude domain="sharedpref" path="airbridge-user-alias" />
    <exclude domain="sharedpref" path="airbridge-user-attributes" />
    <exclude domain="sharedpref" path="airbridge-device-alias" />
    <exclude domain="database" path="airbridge.db" />
</full-backup-content>

Fix conflict with fullBackupContent="string"

Adding android:fullBackupContent="string" to the AndroidManifest.xml may cause an error like the following.

Build Output

1
Manifest merger failed : Attribute application@fullBackupContent value=(string) from AndroidManifest.xml

To fix this error,

add xmlns:tools="http://schemas.android.com/tools" in the Platforms > Android > Extra Tags for <manifest> node to the Unreal Editor Project Settings window.
add tools:replace="android:fullBackupContent" in the Platforms > Android > Extra Tags for <application> node to the Unreal Editor Project Settings window.

Fix conflict with dataExtractionRules="string resource"

Adding android:dataExtractionRules="string resource" to the AndroidManifest.xml may cause an error like the following.

Build Output

12
Manifest merger failed : Attribute application@dataExtractionRules value=(string resource) from AndroidManifest.xml

To fix this error,

add xmlns:tools="http://schemas.android.com/tools" to the Platforms > Android > Extra Tags for <manifest> node in the Unreal Editor Project Settings window.
add tools:replace="android:dataExtractionRules" to the Platforms > Android > Extra Tags for <application> node in the Unreal Editor Project Settings window.

Fix conflict with allowBackup="false"

If you add android:allowBackup="false" in the AndroidManifest.xml, you might get the following error:

Build Output

123
Manifest merger failed : Attribute application@allowBackup value=(false) from AndroidManifest.xml:32:9-36
	is also present at [:airbridge] AndroidManifest.xml:27:9-35 value=(true).
	Suggestion: add 'tools:replace="android:allowBackup"' to <application> element at AndroidManifest.xml:30:5-250:19 to override.

To fix this error,

add xmlns:tools="http://schemas.android.com/tools" to the Platforms > Android > Extra Tags for <manifest> node in the Unreal Editor Project Settings window.
add tools:replace="android:allowBackup" to the Platforms > Android > Extra Tags for <application> node in the Unreal Editor Project Settings window.

If compileSdkVersion is l than 31

The android:dataExtractionRules has been added in API Level 31. Therefore, if the compileSdkVersion is lower than 31, an error like the following may occur.

Build Output

1
AndroidManifest.xml: AAPT: error: attribute android:dataExtractionRules not found.

To fix this error,

add xmlns:tools="http://schemas.android.com/tools" to the Platforms > Android > Extra Tags for <manifest> node in the Unreal Editor Project Settings window.
add tools:remove="android:dataExtractionRules" to the Platforms > Android > Extra Tags for <application> node in the Unreal Editor Project Settings window.

For more guidance, refer to the articles below.

Issue

If an Airbridge SDK backup rule and a backup rule for a different third-party SDK (e.g., AppsFlyer SDK) overlap, you will see the build error below.

123
Attribute application@fullBackupContent value=(@xml/appsflyer_backup_rules) from [com.appsflyer:af-android-sdk:6.6.1] AndroidManifest.xml:14:18-73
is also present at [io.airbridge:sdk-android:2.14.0] AndroidManifest.xml:27:18-78 value=(@xml/airbridge_auto_backup_rules).
Suggestion: add 'tools:replace="android:fullBackupContent"' to <application> element at AndroidManifest.xml:7:5-13:19 to override.

Cause

Overlapping of the Airbridge SDK backup rules and third-party SDK backup rules can cause build errors.

Solution

`backup_rules.xml` setup

Create a file (e.g., custom_backup_rules.xml) within the module directory.

Add the data backup rules defined by the Airbridge SDK as follows.

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<?xml version="1.0" encoding="utf-8"?>
<full-backup-content>
    <!-- Airbridge Backup Rules -->
    <exclude domain="sharedpref" path="airbridge-internal" />
    <exclude domain="sharedpref" path="airbridge-install" />
    <exclude domain="sharedpref" path="airbridge-user-info" />
    <exclude domain="sharedpref" path="airbridge-user-alias" />
    <exclude domain="sharedpref" path="airbridge-user-attributes" />
    <exclude domain="sharedpref" path="airbridge-device-alias" />
    <exclude domain="database" path="airbridge.db" />
  
    <!-- Appsflyer Backup Rules -->
    <exclude domain="sharedpref" path="appsflyer-data"/>
	
	<!-- Your Custom Backup Rules -->
</full-backup-content>

Using the Unreal Plugin Language (UPL), copy the file into your res/xml folder as follows.

123456789
<?xml version="1.0" encoding="utf-8"?>
<root xmlns:android="http://schemas.android.com/apk/res/android">
    ...
    <resourceCopies>
        <copyFile src="{YOUR_XML_BACKUP_RULES_PATH}" dst="$S(BuildDir)/res/xml/custom_backup_rules.xml" />
        ...
    </resourceCopies>
    ...
</root>

`data_extraction_rules.xml` setup

Create a file (e.g., custom_data_extraction_rules.xml) within the module directory.

Add the data backup rules defined by the Airbridge SDK as follows.

123456789101112131415161718192021222324252627282930313233
<?xml version="1.0" encoding="utf-8"?>
<data-extraction-rules>
    <cloud-backup>
        <!-- Airbridge Backup Rules -->
        <exclude domain="sharedpref" path="airbridge-internal" />
        <exclude domain="sharedpref" path="airbridge-install" />
        <exclude domain="sharedpref" path="airbridge-user-info" />
        <exclude domain="sharedpref" path="airbridge-user-alias" />
        <exclude domain="sharedpref" path="airbridge-user-attributes" />
        <exclude domain="sharedpref" path="airbridge-device-alias" />
        <exclude domain="database" path="airbridge.db" />

        <!-- Appsflyer Backup Rules -->
        <exclude domain="sharedpref" path="appsflyer-data"/>

	    <!-- Your Custom Backup Rules -->
    </cloud-backup>
    <device-transfer>
        <!-- Airbridge Backup Rules -->
        <exclude domain="sharedpref" path="airbridge-internal" />
        <exclude domain="sharedpref" path="airbridge-install" />
        <exclude domain="sharedpref" path="airbridge-user-info" />
        <exclude domain="sharedpref" path="airbridge-user-alias" />
        <exclude domain="sharedpref" path="airbridge-user-attributes" />
        <exclude domain="sharedpref" path="airbridge-device-alias" />
        <exclude domain="database" path="airbridge.db" />

        <!-- Appsflyer Backup Rules -->
        <exclude domain="sharedpref" path="appsflyer-data"/>

	    <!-- Your Custom Backup Rules -->
    </device-transfer>
</data-extraction-rules>

Using the Unreal Plugin Language (UPL), copy the file into your res/xml folder as follows.

123456789
<?xml version="1.0" encoding="utf-8"?>
<root xmlns:android="http://schemas.android.com/apk/res/android">
    ...
    <resourceCopies>
        <copyFile src="{YOUR_XML_BACKUP_RULES_PATH}" dst="$S(BuildDir)/res/xml/custom_data_extraction_rule.xml" />
        ...
    </resourceCopies>
    ...
</root>

`AndroidManifest.xml` setup

In the Unreal Editor Project Settings window, add the following element to the Platforms - Android > Advanced APK Packaging > Extra Tags for <manifest> node.

xmlns:tools="http://schemas.android.com/tools"

In the Unreal Editor Project Settings window, add the following elements to the Platforms - Android > Advanced APK Packaging > Extra Tags for <application> node.

android:allowBackup="true"
android:fullBackupContent="@xml/custom_backup_rules"
android:dataExtractionRules="@xml/custom_data_extraction_rules"
tools:replace="android:fullBackupContent, android:dataExtractionRules"

For more guidance, refer to the articles below.

Issue

GAID is being collected as 00000000-0000-0000-0000-000000000000 even though LAT (Limited Ad Tracking) is deactivated.

Cause

The AD_ID permission has been excluded due to other third-party libraries.

Solution

Add AD_ID permission.

12345
<manifest ...>
  ...
  <uses-permission android:name="com.google.android.gms.permission.AD_ID" />
  ...
</manifest>

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Troubleshooting - Unreal SDK

iOS

The domain of saved passwords appears as airbridge.io or abr.ge

Problem

Cause

Solution

Upload Symbol Failed on Xcode

Problem

Cause

Solution

Android

A coroutine dependency error occurs during the build process

Issue

Cause

Solution

Deeplink Opens generated through push notifications using the Braze SDK are not collected

Issue

Cause

Solution

The "Manifest merger failed" error occurrs during the build process

Issue

Cause

Solution

Fix conflict with fullBackupContent="string"

Fix conflict with dataExtractionRules="string resource"

Fix conflict with allowBackup="false"

If compileSdkVersion is l than 31

Resolve Airbridge SDK backup rules merge conflict issue

Issue

Cause

Solution

`backup_rules.xml` setup

`data_extraction_rules.xml` setup

`AndroidManifest.xml` setup

GAID is collected as 00000000-0000-0000-0000-000000000000

Issue

Cause

Solution

Troubleshooting - Unreal SDKself.__wrap_n!=1&&self.__wrap_b(":Ricvf9tpkvecq:",0.5)

iOS

The domain of saved passwords appears as airbridge.io or abr.ge

Problem

Cause

Solution

Upload Symbol Failed on Xcode

Problem

Cause

Solution

Android

A coroutine dependency error occurs during the build process

Issue

Cause

Solution

Deeplink Opens generated through push notifications using the Braze SDK are not collected

Issue

Cause

Solution

The "Manifest merger failed" error occurrs during the build process

Issue

Cause

Solution

Fix conflict with fullBackupContent="string"

Fix conflict with dataExtractionRules="string resource"

Fix conflict with allowBackup="false"

If compileSdkVersion is l than 31

Resolve Airbridge SDK backup rules merge conflict issue

Issue

Cause

Solution

backup_rules.xml setup

data_extraction_rules.xml setup

AndroidManifest.xml setup

GAID is collected as 00000000-0000-0000-0000-000000000000

Issue

Cause

Solution

Troubleshooting - Unreal SDK

`backup_rules.xml` setup

`data_extraction_rules.xml` setup

`AndroidManifest.xml` setup