I am trying to use CredentialManager to save username and password. I am using xml layout and testing on Android 12, I keeping getting error saying androidx.credentials.exceptions.CreateCredentialUnknownException: During save password, found password failure response from one tap 16: [28431] Skipping password saving since the user is likely prompted with Android Autofill. When I checked the doc, it says to ignore the error but the OS never prompts me to save the credentials.

Here is the sample code

private suspend fun signUp(username: String, password: String): String {
        return try {
            //make api call to your backend and if success then
            credentialManager.createCredential(
                context = this,
                request = CreatePasswordRequest(
                    id = username,
                    password = password
                )
            )
            "Success"
        } catch (e: CreateCredentialCancellationException) {
            e.printStackTrace()
            "Cancelled"
        } catch(e: CreateCredentialException) {
            e.printStackTrace()
            Log.i("Erroris",e.toString())
            "Failure"
        }
    }

Here is my xml layout

<EditText
        android:id="@+id/username"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:autofillHints="username"
        android:inputType="text"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:ignore="LabelFor"
        android:hint="@string/username"
        android:layout_marginBottom="200dp"

        />

    <EditText
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:inputType="textPassword"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/username"
        tools:ignore="LabelFor"
        android:autofillHints="password"
        android:hint="@string/password"
        android:id="@+id/password"
        />

Now in my xml layout I have tried couple of things like

android:importantForAutofill="no"
tools:ignore="Autofill,LabelFor"

In my code I also tried adding

val autofillManager = getSystemService(AutofillManager::class.java)
 autofillManager?.disableAutofillServices()

but the error persists