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    I've been told numerous times that a lot of the workflows that I put out there are complex and intimidating. I wanted to put something out there that was easy to use and understand, but without sacrificing the quality and level of organization that has become my trademark.

    These are simple versions of my workflows broken down into easy to understand sections with plenty of notes and limited options for the person new to Comfy.

    LUT folder should be included. If not, it can also be seperately download above

    A complete user guide can be found here: lonecats-simple-workflow-guide

    也有中文说明

    Features

    • Controlnet (except Anima)

    • I2I (except Anima)

    • Florence prompt assist

    • Ultimate Upscaler for prescaling and hi res fix

    • Detailing Suite for face, hands, & eyes

    • Full tutorial available.

    • 也有中文说明

    Note: I spend a lot of time on these to make sure they are top notch. If you have ANY issues, I'm very responsive. hit me up and I'll resolve them for you.

    Instagram: https://www.instagram.com/synth.studio.models/

    Buy me a☕ https://ko-fi.com/lonecatone

    This represents many of hours of work. If you enjoy it, please 👍like, 💬 comment , and feel free to ⚡tip 😉

    Description

    • Prompt assist

    • Image reference

    • upscale

    • post process

    FAQ

    Comments (13)

    denshk93805Jun 11, 2026· 3 reactions
    CivitAI

    TypeError: Object of type KSAMPLER is not JSON serializable

    lonecatone23
    Author
    Jun 11, 2026

    which workflow specifically? That's typically a widget issue, which means I'm trying to save data and Comfyui changed parameters....again

    ErtyerJun 12, 2026

    @lonecatone23 I got this error as well on this workflow, also can't seem to find vrgamergirl nodes, installed the vrgamer ones but not it apparently

    denshk93805Jun 12, 2026

    @lonecatone23 simple klein 9b

    lonecatone23
    Author
    Jun 12, 2026

    @Ertyer @denshk93805 frigging wierd. Can you guys send me your error report or the node # it crashes at?

    I Can't figure it out.

    I'll chase down the VRG nodes and make better notes. She has two repos and they get messed up.

    broken651213Jun 14, 2026

    @lonecatone23 since I've got the same error maybe this would help? or do you need the full log?

    # ComfyUI Error Report

    ## Error Details

    - Node ID: 22

    - Node Type: easy showAnything

    - Exception Type: TypeError

    - Exception Message: TypeError: Object of type KSAMPLER is not JSON serializable

    ## Stack Trace

    ```

    File "E:\AI\ComfyUI\ComfyUI\ComfyUI\execution.py", line 542, in execute

    output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)

    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    File "E:\AI\ComfyUI\ComfyUI\ComfyUI\execution.py", line 341, in get_output_data

    return_values = await asyncmap_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)

    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    File "E:\AI\ComfyUI\ComfyUI\ComfyUI\execution.py", line 309, in asyncmap_node_over_list

    await process_inputs(input_data_all, 0, input_is_list=input_is_list)

    File "E:\AI\ComfyUI\ComfyUI\ComfyUI\execution.py", line 303, in process_inputs

    result = f(**inputs)

    ^^^^^^^^^^^

    File "E:\AI\ComfyUI\ComfyUI\ComfyUI\custom_nodes\comfyui-easy-use\py\nodes\logic.py", line 1525, in log_input

    values.append(json.dumps(val, indent=4, ensure_ascii=False))

    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    File "E:\AI\ComfyUI\ComfyUI\standalone-env\Lib\json\__init__.py", line 238, in dumps

    **kw).encode(obj)

    ^^^^^^^^^^^

    File "E:\AI\ComfyUI\ComfyUI\standalone-env\Lib\json\encoder.py", line 202, in encode

    chunks = list(chunks)

    ^^^^^^^^^^^^

    File "E:\AI\ComfyUI\ComfyUI\standalone-env\Lib\json\encoder.py", line 439, in _iterencode

    o = _default(o)

    ^^^^^^^^^^^

    File "E:\AI\ComfyUI\ComfyUI\standalone-env\Lib\json\encoder.py", line 180, in default

    raise TypeError(f'Object of type {o.__class__.__name__} '

    ```

    broken651213Jun 14, 2026

    toggles in that wf also don't seem to work for me, but I guess that's not as big of an issue. There is also a preview image node in the far right that seems to not be connected to anything at all? is there a reason or just forgotten? :)

    lonecatone23
    Author
    Jun 14, 2026

    @broken651213 Thanks. Found it. Posted V1.0.1

    I don't see teh preview image though. Everything is hooked up

    lonecatone23
    Author
    Jun 14, 2026

    Are you in Linux or desktop? I have zero issues with the sliders. https://github.com/Smirnov75/ComfyUI-mxToolkit

    broken651213Jun 15, 2026

    @lonecatone23 desktop, windows, but comparing to your other workflow if I look at node parameters then it only shows one option for each switch instead of two in klein workflow. Thank you very much for everything you do with your workflows, btw, you are the goat

    lonecatone23
    Author
    Jun 15, 2026

    @broken651213 Thank you  🙏. ComfyUI Manager 3 update broke a lot of Dynamic VRam links. A bunch of problems I am scrambing to fix.

    Just for reference. You would be better served switching to portable. The road is already bumby for desktop and ComfyUI is committed to going to nodes 2.0. You'll have a lot of breaks. I did and it is much more stable

    amida_dJun 20, 2026
    CivitAI

    Great job! Two questions. Where can I download the Cool Natural Breeze LUT? Also, do you have a simple workflow for Z-Image base? Thanks.

    lonecatone23
    Author
    Jun 20, 2026

    I forgot to add the LUT folder 🙄 . I think I need to make it a seprate attchement, but it is in the main folder now.

    No. I do not. This is really geared towards beginners and base is not really a "beginner" kind of model. However, you can use this with diferent settings.

    I do have a "base essentials" workflow

    Workflows
    Flux.2 Klein 9B

    Details

    Downloads
    828
    Platform
    CivitAI
    Platform Status
    Available
    Created
    6/10/2026
    Updated
    7/26/2026
    Deleted
    -

    Files

    lonecatsSimple_simpleKlein9b.json

    Mirrors

    lonecatsSimpleWorkflowsZITKrea2_simpleKlein9b101.json

    lonecatsSimpleWorkflowsZITKrea2_simpleKlein9b101.zip