stride3d/stride · error · InvalidOperationException

No service matches the given type.

Error message

No service matches the given type.

What it means

Thrown by ViewModelServiceProvider.Get (and Get<T>) when no registered service — in this provider or its parent provider — is an instance of the requested serviceType. Unlike TryGet, which returns null, Get guarantees a service, so the missing registration surfaces as an InvalidOperationException. This fires when editor code requests a service that was never registered (or was already unregistered).

Solutions

1. Register the service before calling Get, or use TryGet and handle null
2. Verify the requested Type matches the registered service's assignability
3. Ensure the lookup happens after provider initialization (e.g. not during field initializers)

Example fix

// before
var svc = provider.Get(typeof(IMyService)); // throws if not registered
// after
provider.RegisterService(new MyServiceImpl());
var svc = provider.Get(typeof(IMyService));

if (provider.TryGet(serviceType) == null)
    throw new InvalidOperationException($"Service {serviceType.Name} must be registered before use");

try { svc = provider.Get(typeof(IMyService)); }
catch (InvalidOperationException ex) { log.Warn(ex, "Missing service"); svc = CreateDefault(); }

When it happens

Trigger: Calling Get(Type) for a type never registered, after the service was removed, or on a provider whose parent chain also lacks the service.

Common situations: Typos in the requested type; services registered in a different provider instance; lookups happening before registration completes (e.g. in the view model constructor).

Understand the failure class

Background: 'Could not be found', 'does not exist', 'not found in database': the resource-not-found family when an ID, slug, key, or URI lookup comes back empty — this error's family across 20 libraries.

Related errors

• No service matches the given type.
• A service of the same type has already been registered.
• Multiple services match the given type.
• The provided path is not a valid path name.
• Build manifest [ ] doesn't exist

AI-assisted analysis of stride3d/stride@96fad776d2 (2026-09-14). Data as JSON: /api/errors/eee53f114694e1b7. Report an issue: GitHub.

Appendix: source

Thrown at sources/presentation/Stride.Core.Presentation/ViewModels/ViewModelServiceProvider.cs:102

                throw new InvalidOperationException("Multiple services match the given type.");

            serviceFound = service;
        }

        return serviceFound ?? parentProvider?.TryGet(serviceType);
    }

    /// <inheritdoc/>
    public T? TryGet<T>() where T : class
    {
        return TryGet(typeof(T)) as T;
    }

    /// <inheritdoc/>
    public object Get(Type serviceType)
    {
        var result = TryGet(serviceType);
        return result ?? throw new InvalidOperationException("No service matches the given type.");
    }

    /// <inheritdoc/>
    public T Get<T>() where T : class
    {
        return TryGet<T>() ?? throw new InvalidOperationException("No service matches the given type.");
    }
}

View on GitHub (pinned to 96fad776d2)