Warnings due to obsolete Object.FindObjectsByType<T> usage and [SerializeReference] are logged when opening the Netcode for Entities setup scene

Package: Multiplayer Center

Fixed

1.0.X

1.0.1

Steps to reproduce:

Create a new 3D URP project
Go to Window > Multiplayer > Multiplayer Center
Set "Genre of your Game" to Adventure and "Number of Players..." to 2
Change the "Netcode Solution" dropdown to "Netcode for Entities"
Click Install Packages
Once installed, click "Create and open scene with netcode setup"
Observe the Console once opened

Actual results: Multiple warnings are logged in the Console, including obsolete API usage warnings and [SerializeReference] warnings about types missing the [Serializable] attribute

Expected results: No warnings are logged

Reproducible with versions: 6000.4.7f1, 6000.5.0b9

Not reproducible with versions: 6000.3.16f1 (methods not deprecated)

Can’t test with versions: 6000.6.0a5 (due to Multiplayer Center change and netcode setup scene not existing anymore)

Tested on (OS): macOS 26.5

Few of the Warnings:

The type Unity.Multiplayer.Center.Integrations Unity.Multiplayer.Center.Integrations.NecsOnboardingSection is being serialized by [SerializeReference], but is missing the [Serializable] attribute. To suppress this warning add [Serializable] or use [MakeSerializable].

The type Unity.Multiplayer.Center.Integrations Unity.Multiplayer.Center.Integrations.MultiplayerPlayModeOnboardingSection is being serialized by [SerializeReference], but is missing the [Serializable] attribute. To suppress this warning add [Serializable] or use [MakeSerializable].

The type Unity.Multiplayer.Center.Integrations Unity.Multiplayer.Center.Integrations.MultiplayerPlayModeOnboardingSection is being serialized by [SerializeReference], but is missing the [Serializable] attribute. To suppress this warning add [Serializable] or use [MakeSerializable].

Assets/NetcodeForEntitiesSetup/Scripts/AutoDeactivateExtraComponents.cs(10,34): warning CS0618: 'Object.FindObjectsByType<T>(FindObjectsSortMode)' is obsolete: 'FindObjectsByType with FindObjectsSortMode parameter has been deprecated. Use FindObjectsByType<T>() or FindObjectsByType<T>(FindObjectsInactive) instead. InstanceID will be replaced in the future with EntityId and previous sort order cannot be maintained.'

Warnings due to obsolete Object.FindObjectsByType<T> usage and [SerializeReference] are logged when opening the Netcode for Entities setup scene

Package: Multiplayer Center

Fixed

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Warnings due to obsolete Object.FindObjectsByType<T> usage and [SerializeReference] are logged when opening the Netcode for Entities setup scene

Package: Multiplayer Center

Statuses

Fixed

Resolution Notes

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?