#gameresource

On engine 26.07 both [GameResource] and NavMesh.GetSimplePath are marked [Obsolete] (CS0618), so a zero-warnings build gate fails on them. Replace [GameResource(...)] with [AssetType(...)] and GetSimplePath with NavMesh.CalculatePath, which returns a NavMeshPath of NavMeshPathPoint (not List<Vector3>).

The [GameResource("Name","ext","desc")] attribute on a GameResource subclass now raises CS0618 obsolete. It is a warning, so a green dotnet build hides it unless the project treats warnings as errors. Switch to [AssetType] with named properties. The type still derives from GameResource, still writes an .ext file, and is still found by ResourceLibrary.GetAll<T>(). Only the declaring attribute changes, and the old Icon argument has no replacement.

A custom GameResource with a file extension longer than 8 characters silently never registers as a compilable source type. Every asset fails with "no source file." Keep extensions to 8 lowercase chars or fewer.