XFormers Required, Added import_error_solution.txt

__init__.py

@@ -1,3 +1,15 @@
+print("\n\033[32mInitializing ControlAltAI Nodes\033[0m")  # Fixed green reset
+try:
+   import xformers
+   print("\n\033[94mControlAltAI: xformers found!\033[0m")  # Light blue
+except ImportError:
+   print("\n" + "="*70)
+   print("\033[94mCONTROLALTAI-NODES: XFORMERS REQUIRED\033[0m")  # Light blue
+   print("\033[33mSome nodes in this custom node pack require xformers to function properly.")  # Start orange
+   print("\nPlease check \"import_error_solution.txt\" in ComfyUI\\custom_nodes\\ControlAltAI-Nodes for how to install XFormers\033[0m")  # End orange
+   print("="*70 + "\n")
+   raise ImportError("xformers is required for ControlAltAI Nodes")
+
 from .flux_resolution_cal_node import FluxResolutionNode
 from .flux_sampler_node import FluxSampler
 from .flux_union_controlnet_node import FluxUnionControlNetApply
@@ -15,8 +27,6 @@ from .flux_attention_control_node import FluxAttentionControl
 from .region_overlay_visualizer_node import RegionOverlayVisualizer
 from .flux_attention_cleanup_node import FluxAttentionCleanup
 
-print("Initializing ControlAltAI Nodes")
-
 NODE_CLASS_MAPPINGS = {
     "FluxResolutionNode": FluxResolutionNode,
     "FluxSampler": FluxSampler,

import_error_solution.txt

@@ -0,0 +1,22 @@
+XFormers is now needed for the flux region spatial control to work.
+
+Go to your python_embeded folder and Check your pytorch and cuda version:
+
+python.exe -c "import torch; print(torch.__version__)"
+
+Please go to: https://github.com/facebookresearch/xformers/releases
+
+Check for the latest Xformers version that is compatible with your installed Pytorch version.
+
+You can Install the latest version of xformers using this command:
+
+python.exe -m pip install xformers==PUTVERSIONHERE --index-url https://download.pytorch.org/whl/cuVERSION
+
+example:
+python.exe -m pip install xformers==0.0.28.post3 --index-url https://download.pytorch.org/whl/cu124
+
+As of 8th December 2024:
+Recommended:
+xformers==0.0.28.post3
+PyTorch 2.5.1
+CUDA version: cu124 (for CUDA 12.4)