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Troubleshoot Android Instant Apps development issues

This page describes common problems or issues that can arise when developing Android Instant Apps and how to fix them. If you encounter other challenges while developing your instant app, check the Android Instant Apps posts on StackOverflow.

Run the Instant App APK

A common issue when you run an instant app is that the browser tries to load the URL instead of running the instant app. This problem can occur for a variety of different reasons.

Here are some steps to try to fix it:

<intent-filter android:order="2">
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.BROWSABLE" />
    <category android:name="android.intent.category.DEFAULT" />
    <data
        android:host="example.com"
        android:scheme="https"
        android:pathPrefix="/hello"/>
</intent-filter>

Here are some other issues that can occur when you run your instant app:

Error message Description Solution
E/AndroidRuntime: FATAL EXCEPTION: IntentService[IapkLoadService] Process: com.google.android.instantapps.devman, PID: 5951 android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed: Domains.domain (code 1555) Running the instant app fails on a device. The device shows the message **Instant Apps Dev Manager**. Check the domain name of the URL that you are attempting to run. You may need to alter your app's domain in the manifest in order to run the app.
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