improve error message for TargetParameterCountException in the reflection API

docs/release-notes.md

@@ -11,6 +11,7 @@
 * For modders:
   * Added asset propagation for grass textures.
   * Added asset propagation for `Data\Bundles` changes (for added bundles only).
+  * Improved error messages for `TargetParameterCountException` when using the reflection API.
   * `helper.Read/WriteSaveData` can now be used while a save is being loaded (e.g. within a `Specialized.LoadStageChanged` event).
   * Fixed private textures loaded from content packs not having their `Name` field set.
 

src/SMAPI/Framework/Reflection/ReflectedMethod.cs

@@ -65,6 +65,10 @@ namespace StardewModdingAPI.Framework.Reflection
             {
                 result = this.MethodInfo.Invoke(this.Parent, arguments);
             }
+            catch (TargetParameterCountException)
+            {
+                throw new Exception($"Couldn't invoke the {this.DisplayName} method: it expects {this.MethodInfo.GetParameters().Length} parameters, but {arguments.Length} were provided.");
+            }
             catch (Exception ex)
             {
                 throw new Exception($"Couldn't invoke the {this.DisplayName} method", ex);