From 443056c401c53953bb8eee6da71b9ad29afe2581 Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Fri, 14 Nov 2025 00:26:05 -0800
Subject: [PATCH] Fix custom nodes import error. (#10747)

This should fix the import errors but will break if the custom nodes actually try to use the class.
---
 comfy/ldm/chroma/layers.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/comfy/ldm/chroma/layers.py b/comfy/ldm/chroma/layers.py
index 9f4ad5bd2..2d5684348 100644
--- a/comfy/ldm/chroma/layers.py
+++ b/comfy/ldm/chroma/layers.py
@@ -7,6 +7,9 @@ from comfy.ldm.flux.layers import (
     ModulationOut,
 )
 
+# TODO: remove this in a few months
+SingleStreamBlock = None
+DoubleStreamBlock = None
 
 
 class ChromaModulationOut(ModulationOut):