2 files changed, 13 insertions, 4 deletions
diff --git a/core/object/script_language.cpp b/core/object/script_language.cpp
index cdc56e5ec5..0428caa80d 100644
--- a/core/object/script_language.cpp
+++ b/core/object/script_language.cpp
@@ -704,6 +704,18 @@ bool PlaceHolderScriptInstance::has_method(const StringName &p_method) const {
 	return false;
 }
 
+Variant PlaceHolderScriptInstance::callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
+	r_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD;
+#if TOOLS_ENABLED
+	if (Engine::get_singleton()->is_editor_hint()) {
+		return String("Attempt to call a method on a placeholder instance. Check if the script is in tool mode.");
+	} else {
+		return String("Attempt to call a method on a placeholder instance. Probably a bug, please report.");
+	}
+#endif
+	return Variant();
+}
+
 void PlaceHolderScriptInstance::update(const List<PropertyInfo> &p_properties, const HashMap<StringName, Variant> &p_values) {
 	HashSet<StringName> new_values;
 	for (const PropertyInfo &E : p_properties) {
diff --git a/core/object/script_language.h b/core/object/script_language.h
index 59a43a7b29..e38c344ae5 100644
--- a/core/object/script_language.h
+++ b/core/object/script_language.h
@@ -454,10 +454,7 @@ public:
 		return 0;
 	}
 
-	virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override {
-		r_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD;
-		return Variant();
-	}
+	virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
 	virtual void notification(int p_notification, bool p_reversed = false) override {}
 
 	virtual Ref<Script> get_script() const override { return script; }