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Problem with updating python inside Swarm UI #1403

@barnaba86

Description

@barnaba86

Your question

Hi,
This is the path i've installed swarm ui
E:\SwarmUI\SwarmUI\dlbackend\comfy\update

I wanted to use ipadapters to prompt new images from the source.
While trying to use Ipadapters (after downloading by swarm ui)
I got a problem
numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

I read that updating python may resolve the problem,
I updated python to the newest version using
update_comfyui_and_python_dependencies

After updating my swarm ui stopped working correctly
There is an error
12:28:19.953 [Error] Self-Start ComfyUI-0 on port 7821 failed. AutoRestart ignored as this was an initial launch failure

In swarm Ui there is error: some backends have errored on the server. I cannot change it restart or enable.
How can I fix it to start it correctly. I don't want to reinstall swarm ui again, this happens always when I update python inside swarim ui
Any fix for thix ?

Logs

12:28:15.197 [Init] === SwarmUI v0.9.8.0 Starting at 2026-06-04 12:28:15 ===
12:28:15.199 [Init] Parsing command line...
12:28:15.205 [Init] Loading settings file...
12:28:15.224 [Init] Re-saving settings file...
12:28:15.242 [Init] Applying command line settings...
12:28:15.248 [Init] SwarmUI was installed 2026-06-02 (2 days ago) with version 0.9.8.0
12:28:15.249 [Init] Swarm base path is: E:\SwarmUI\SwarmUI
12:28:15.249 [Init] Running on OS: Microsoft Windows 10.0.19045
12:28:15.272 [Init] Prepping extension: SwarmUI.Builtin_ImageBatchToolExtension.ImageBatchToolExtension...
12:28:15.272 [Init] Prepping extension: SwarmUI.Builtin_GridGeneratorExtension.GridGeneratorExtension...
12:28:15.273 [Init] Prepping extension: SwarmUI.Builtin_DynamicThresholding.DynamicThresholdingExtension...
12:28:15.273 [Init] Prepping extension: SwarmUI.Builtin_ComfyUIBackend.ComfyUIBackendExtension...
12:28:15.273 [Init] Prepping extension: SwarmUI.Builtin_AutoWebUIExtension.AutoWebUIBackendExtension...
12:28:15.306 [Init] Prepping options...
12:28:15.325 [Init] CPU Cores: 20 | RAM: 31.70 GiB total, 19.56 GiB available, 63.70 GiB total page file, 49.49 GiB available page file
12:28:15.345 [Init] GPU 0: NVIDIA GeForce RTX 4070 SUPER | Temp 43C | Util 1% GPU, 0% Memory | VRAM 11.99 GiB total, 11.06 GiB free, 677.00 MiB used
12:28:15.346 [Init] Will use GPU accelerations specific to NVIDIA GeForce RTX 40xx series and newer.
12:28:15.407 [Init] Loading models list...
12:28:15.420 [Init] Loading backends...
12:28:15.421 [Init] Loading backends from file...
12:28:15.424 [Init] Initializing backend #0 - ComfyUI Self-Starting...
12:28:15.424 [Init] Prepping API...
12:28:15.425 [Init] Prepping webserver...
12:28:15.427 [Init] Backend request handler loop ready...
12:28:15.500 [Init] Scan for web extensions...
12:28:15.501 [Init] Readying extensions for launch...
12:28:15.501 [Init] Launching server...
12:28:15.502 [Init] Starting webserver on http://localhost:7801
12:28:16.042 [Init] Current git commit is [b21fb44: Add Epsilon-Scaling extension to extension list (#1401)], marked as date 2026-06-02 20:14:25 (38 hours ago)
12:28:16.065 [Init] Swarm is up to date! You have version 0.9.8.0, and 0.9.8-Beta is the latest.
12:28:16.066 [Init] SwarmUI v0.9.8.0 - Local is now running.
12:28:16.444 [Init] Self-Start ComfyUI-0 on port 7821 is loading...
12:28:16.574 [Init] Launch web browser...
12:28:17.036 [Info] Creating new session 'local' for ::1
12:28:19.610 [Warning] [ComfyUI-0/STDERR] Traceback (most recent call last):
12:28:19.611 [Warning] [ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\main.py", line 206, in
12:28:19.611 [Warning] [ComfyUI-0/STDERR] import execution
12:28:19.612 [Warning] [ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\execution.py", line 18, in
12:28:19.612 [Warning] [ComfyUI-0/STDERR] import comfy.model_management
12:28:19.613 [Warning] [ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\comfy\model_management.py", line 362, in
12:28:19.613 [Warning] [ComfyUI-0/STDERR] total_vram = get_total_memory(get_torch_device()) / (1024 * 1024)
12:28:19.613 [Warning] [ComfyUI-0/STDERR] ^^^^^^^^^^^^^^^^^^
12:28:19.614 [Warning] [ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\comfy\model_management.py", line 211, in get_torch_device
12:28:19.615 [Warning] [ComfyUI-0/STDERR] return torch.device(torch.cuda.current_device())
12:28:19.615 [Warning] [ComfyUI-0/STDERR] ^^^^^^^^^^^^^^^^^^^^^^^^^^^
12:28:19.615 [Warning] [ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\python_embeded\Lib\site-packages\torch\cuda_init_.py", line 1167, in current_device
12:28:19.616 [Warning] [ComfyUI-0/STDERR] lazy_init()
12:28:19.616 [Warning] [ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\python_embeded\Lib\site-packages\torch\cuda_init
.py", line 484, in lazy_init
12:28:19.617 [Warning] [ComfyUI-0/STDERR] raise AssertionError("Torch not compiled with CUDA enabled")
12:28:19.617 [Warning] [ComfyUI-0/STDERR] AssertionError: Torch not compiled with CUDA enabled
12:28:19.946 [Info] Self-Start ComfyUI-0 unexpectedly exited (ExitCode=1) (if something failed, change setting LogLevel to Debug to see why!)
12:28:19.948 [Info] Self-Start ComfyUI-0 had errors before shutdown:
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m setup plugin alembic.autogenerate.schemas
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m setup plugin alembic.autogenerate.tables
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m setup plugin alembic.autogenerate.types
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m setup plugin alembic.autogenerate.constraints
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m setup plugin alembic.autogenerate.defaults
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m setup plugin alembic.autogenerate.comments
[ComfyUI-0/STDERR] ←[1m←[33m[WARNING]←[0m Could not autodetect AIMDO implementation, assuming Nvidia
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path checkpoints E:\SwarmUI\SwarmUI\Models\Stable-Diffusion
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path vae E:\SwarmUI\SwarmUI\Models\VAE
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path loras E:\SwarmUI\SwarmUI\Models\Lora
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path loras E:\SwarmUI\SwarmUI\Models\LyCORIS
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path upscale_models E:\SwarmUI\SwarmUI\Models\ESRGAN
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path upscale_models E:\SwarmUI\SwarmUI\Models\RealESRGAN
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path upscale_models E:\SwarmUI\SwarmUI\Models\SwinIR
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path upscale_models E:\SwarmUI\SwarmUI\Models\upscale-models
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path upscale_models E:\SwarmUI\SwarmUI\Models\upscale_models
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path embeddings E:\SwarmUI\SwarmUI\Models\Embeddings
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path hypernetworks E:\SwarmUI\SwarmUI\Models\hypernetworks
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path controlnet E:\SwarmUI\SwarmUI\Models\controlnet
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path controlnet E:\SwarmUI\SwarmUI\Models\model_patches
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path model_patches E:\SwarmUI\SwarmUI\Models\controlnet
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path model_patches E:\SwarmUI\SwarmUI\Models\model_patches
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path clip E:\SwarmUI\SwarmUI\Models\text_encoders
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path clip E:\SwarmUI\SwarmUI\Models\clip
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path clip_vision E:\SwarmUI\SwarmUI\Models\clip_vision
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path unet E:\SwarmUI\SwarmUI\Models\unet
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path diffusion_models E:\SwarmUI\SwarmUI\Models\diffusion_models
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path gligen E:\SwarmUI\SwarmUI\Models\gligen
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path ipadapter E:\SwarmUI\SwarmUI\Models\ipadapter
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path yolov8 E:\SwarmUI\SwarmUI\Models\yolov8
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path tensorrt E:\SwarmUI\SwarmUI\Models\tensorrt
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path clipseg E:\SwarmUI\SwarmUI\Models\clipseg
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path style_models E:\SwarmUI\SwarmUI\Models\style_models
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path latent_upscale_models E:\SwarmUI\SwarmUI\Models\latent_upscale_models
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path custom_nodes E:\SwarmUI\SwarmUI\src\BuiltinExtensions\ComfyUIBackend\DLNodes
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Adding extra search path custom_nodes E:\SwarmUI\SwarmUI\src\BuiltinExtensions\ComfyUIBackend\ExtraNodes
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Found comfy_kitchen backend eager: {'available': True, 'disabled': False, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'apply_rope_split_half', 'apply_rope_split_half1', 'dequantize_mxfp8', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'gemv_awq_w4a16', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8', 'quantize_svdquant_w4a4', 'scaled_mm_mxfp8', 'scaled_mm_nvfp4', 'scaled_mm_svdquant_w4a4', 'stochastic_rounding_fp8']}
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Found comfy_kitchen backend triton: {'available': False, 'disabled': True, 'unavailable_reason': "ImportError: No module named 'triton'", 'capabilities': []}
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Found comfy_kitchen backend cuda: {'available': False, 'disabled': True, 'unavailable_reason': 'CUDA not available on this system', 'capabilities': []}
[ComfyUI-0/STDERR] ←[32m[INFO]←[0m Checkpoint files will always be loaded safely.
[ComfyUI-0/STDERR] Traceback (most recent call last):
[ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\main.py", line 206, in
[ComfyUI-0/STDERR] import execution
[ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\execution.py", line 18, in
[ComfyUI-0/STDERR] import comfy.model_management
[ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\comfy\model_management.py", line 362, in
[ComfyUI-0/STDERR] total_vram = get_total_memory(get_torch_device()) / (1024 * 1024)
[ComfyUI-0/STDERR] ^^^^^^^^^^^^^^^^^^
[ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\ComfyUI\comfy\model_management.py", line 211, in get_torch_device
[ComfyUI-0/STDERR] return torch.device(torch.cuda.current_device())
[ComfyUI-0/STDERR] ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\python_embeded\Lib\site-packages\torch\cuda_init
.py", line 1167, in current_device
[ComfyUI-0/STDERR] lazy_init()
[ComfyUI-0/STDERR] File "E:\SwarmUI\SwarmUI\dlbackend\comfy\python_embeded\Lib\site-packages\torch\cuda_init
.py", line 484, in _lazy_init
[ComfyUI-0/STDERR] raise AssertionError("Torch not compiled with CUDA enabled")
[ComfyUI-0/STDERR] AssertionError: Torch not compiled with CUDA enabled

12:28:19.953 [Error] Self-Start ComfyUI-0 on port 7821 failed. AutoRestart ignored as this was an initial launch failure.

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