fix build errors

src/Discord.Net.Interactions/Builders/Parameters/ModalCommandParameterBuilder.cs

@@ -34,7 +34,7 @@ namespace Discord.Interactions.Builders
         public override ModalCommandParameterBuilder SetParameterType(Type type)
         {
             if (typeof(IModal).IsAssignableFrom(type))
-                Modal = ModalUtils.GetOrAdd(type);
+                Modal = ModalUtils.GetOrAdd(type, Command.Module.InteractionService);
 
             return base.SetParameterType(type);
         }

src/Discord.Net.Interactions/Info/ModalInfo.cs

@@ -20,6 +20,7 @@ namespace Discord.Interactions
     /// </summary>
     public class ModalInfo
     {
+        internal readonly InteractionService _interactionService;
         internal readonly ModalInitializer _initializer;
 
         /// <summary>
@@ -54,6 +55,7 @@ namespace Discord.Interactions
 
             TextComponents = Components.OfType<TextInputComponentInfo>().ToImmutableArray();
 
+            _interactionService = builder._interactionService;
             _initializer = builder.ModalInitializer;
         }
 

src/Discord.Net.Interactions/InteractionService.cs

@@ -199,7 +199,8 @@ namespace Discord.Interactions
             _compTypeConverterMap = new TypeMap<ComponentTypeConverter, IComponentInteractionData>(this, new Dictionary<Type, ComponentTypeConverter>(),
                 new Dictionary<Type, Type>
                 {
-                    [typeof(Array)] = typeof(DefaultArrayComponentConverter<>)
+                    [typeof(Array)] = typeof(DefaultArrayComponentConverter<>),
+                    [typeof(IConvertible)] = typeof(DefaultValueComponentConverter<>)
                 });
 
             _typeReaderMap = new TypeMap<TypeReader, string>(this, new Dictionary<Type, TypeReader>(),
@@ -876,6 +877,24 @@ namespace Discord.Interactions
         public void AddGenericTypeReader(Type targetType, Type readerType) =>
             _typeReaderMap.AddGeneric(targetType, readerType);
 
+        /// <summary>
+        ///     Loads and caches an <see cref="ModalInfo"/> for the provided <see cref="IModal"/>.
+        /// </summary>
+        /// <typeparam name="T">Type of <see cref="IModal"/> to be loaded.</typeparam>
+        /// <returns>
+        ///     The built <see cref="ModalInfo"/> instance.
+        /// </returns>
+        /// <exception cref="InvalidOperationException"></exception>
+        public ModalInfo AddModalInfo<T>() where T : class, IModal
+        {
+            var type = typeof(T);
+
+            if (_modalInfos.ContainsKey(type))
+                throw new InvalidOperationException($"Modal type {type.FullName} already exists.");
+
+            return ModalUtils.GetOrAdd(type, this);
+        }
+
         internal IAutocompleteHandler GetAutocompleteHandler(Type autocompleteHandlerType, IServiceProvider services = null)
         {
             services ??= EmptyServiceProvider.Instance;

src/Discord.Net.Interactions/Map/TypeMap.cs

@@ -39,7 +39,7 @@ namespace Discord.Interactions
             else if (_concretes.Any(x => x.Value.CanConvertTo(type)))
                 return _concretes.First(x => x.Value.CanConvertTo(type)).Value;
 
-            throw new ArgumentException($"No type {nameof(TConverter)} is defined for this {type.FullName}", "type");
+            throw new ArgumentException($"No type {typeof(TConverter).Name} is defined for this {type.FullName}", "type");
         }
 
         public void AddConcrete<TTarget>(TConverter converter) =>

src/Discord.Net.Interactions/TypeConverters/ComponentInteractions/DefaultValueComponentConverter.cs

@@ -12,7 +12,7 @@ namespace Discord.Interactions
             {
                 return option.Type switch
                 {
-                    ComponentType.SelectMenu => Task.FromResult(TypeConverterResult.FromSuccess(Convert.ChangeType(string.Join(',', option.Values), typeof(T)))),
+                    ComponentType.SelectMenu => Task.FromResult(TypeConverterResult.FromSuccess(Convert.ChangeType(string.Join(",", option.Values), typeof(T)))),
                     ComponentType.TextInput => Task.FromResult(TypeConverterResult.FromSuccess(Convert.ChangeType(option.Value, typeof(T)))),
                     _ => Task.FromResult(TypeConverterResult.FromError(InteractionCommandError.ConvertFailed, $"{option.Type} doesn't have a convertible value."))
                 };