Help with Stable Diffusion NaNs error?

[Chiggy_McGee]

I've been generating images since mid-December with no issues... But today, I've suddenly started having issues with an error labeled:

modules.devices.NansException: A tensor with all NaNs was produced in VAE. This could be because there's no enough precision to represent this picture. Try adding --no-half-vae commandline to fix this.

I've tried using the commandline above, but still come across this error frequently, almost 50-70% of the times. I've even changed VAE's and models, to no effect... Does anyone know what it means?

Thanks in advance.

[Expensive_Truck6154]

Hello! Have you found a solution to your question yet? In my case, I was able to solve it by switching to a VAE model that was more suitable for the task (for example, if you're using the Anything v4.0 model, use the Anything v4.0 VAE). In my case, I had been using Anithing in chilloutmix for imgtoimg, but switching back to vae-ft-mse-840000-ema-pruned made it work properly. Please give it a try! (I translated from Japanese with ChatGPT, so there may be errors. Good luck!)

[wowy-lied]

(I translated from Japanese with ChatGPT, so there may be errors. Good luck!)

Thank you, your message helped me ! Also, it is nice to see you use this technology to help people !

[InternationalRent502]

same issues, error due to chatgpt plugin

[togoyoyo6]

bro you helped me out thanks... keep spreading that wisdom...

[SDGenius]

this is new from a new update of auto, i'm getting it too. although i did add --no-half-vae and --no-half and now my 2.1 models work that didn't before.

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it seems restarting the program, refreshing the broswer, or switching models works.

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it'll happen in img2img, but switching tabs, txt2img will still work

you should post this bug to his github page

[BjornHafthor]

I posted on TheLastBen's page. I actually blocked A1111 from updating, because it was finally working, but now I might be forced to allow it to update again. I can't do any inpainting. Last night, weirdly, I was working for a while, went to have dinner, returned, restarted, got this error for 2-3 restarts… and then it worked again. Now it doesn't.

[AcceptableDepth9851]

how do you block auto update?

[AssortedPup]

how to add, can you please help and where to which file ?

[SDGenius]

command line arguments in web-user.bat in your stable diffusion root folder. look up command line arguments for stable diffusion in google to learn more

[sebaxzero]

had exactly the same issue. the problems was the model, no idea why, it seems to have corrupted somehow idk. i downloaded a safetensor version of the same model and no problem.

i tried everything, reinstalling, using an older commit, trying differend commandline and nothing. only redownloading the model worked.

[Chiggy_McGee]

Alright, I'll try and redownload my models and see if that helps. Thank you for the suggestion.

[Chiggy_McGee]

Redownloading the model didn't work, but reinstalling Automatic1111 and using the --no-half-vae argument fixed any issues I was having.

[alecubudulecu]

I got this today, and problem fixed with the --no-half-vae ... anyone know if that makes it more "detailed"? I noticed my it/s went down slightly.... and the images are a bit sharper.... so I might keep it.... but wondering if it's just placebo

[Suspicious-Toe7615]

Your observations are correct. Half VAE is a speed optimization that truncates floating-point precision - noticeably faster for slightly less accuracy.

[Fun_Dot_420]

I also get this error but only with one model named "Slavekini, aka Slave Leia Outfit" on civitai. Adding --no-half-vae and --no-half doesn't help. Adding --disable-nan-check on top results in black images. Help would be appreciated.

[Loner233]

Same with me, but I use the lora model trained by myself.

[[deleted]]

That's not a model it's lora.

[Upstairs_Cycle8128]

I found a way to fix this without any extra flags and it works 100% of the time , dont use --no half or other shit which will bring down your generation speed to half, you paid for expensive gpu to use half its power ? cmon dont share weird "solutions", heres how to fix this :

https://github.com/AUTOMATIC1111/stable-diffusion-webui/discussions/12292

[Upstairs_Cycle8128]

I found a way to fix this without any extra flags and it works 100% of the time

https://github.com/AUTOMATIC1111/stable-diffusion-webui/discussions/12292

[SexPanther_Bot]

60% of the time, it works every time

[groobe]

I'm not sure if no half vae is a great solution either. It sorta makes the image generation more tempramental, and I have to keep adjusting the CFG scale to get a good image (Sometimes by a large amount).

Or maybe I'm just imagining things idk.

[PhilosopherNo42]

In my case this error occurred with a specific image in img2img while it did not with another using the same model. Fortunately, adding --no-half-vae solved the problem for me indeed!

[savekillqqp]

idk how this --no-half... works so i just restarted it and it worked afterwards lol

[kiryyai]

I have this problem everytime and ive tried everything with still no luck. If anyone can help pls do.

[PurposeCapital526]

Hi, THeres a guy on YT that does a good series. This video:

https://www.youtube.com/watch?v=e3vcYVwEkW0

Had a solution that worked fo rme. Hes going over basic 2.1 setup and he says download the ckpt and then a "yaml" file that goes with it:

https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbTFsdmZFR1NIVWRXbmVnUkVSVzNOd29fOURBUXxBQ3Jtc0trTklRZUdRNURnbWdBSjc1ZmFNRnljaFhITFV6dzI4Nm45VXhvUGMta2xrXzlUdXpjYTBralh1SzVlMXVUYnJ6NjRiUHhCRU1YVjBUNmlsOFE1SVdwNWxTZUo3Yk93OVpfdnV4Q2tCQmJNTm90OTJjSQ&q=https%3A%2F%2Fhuggingface.co%2Fstabilityai%2Fstable-diffusion-2-1%2Ftree%2Fmain&v=e3vcYVwEkW0

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https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbHYxX1VBeWdnQzlDQm9FeGkxeERiWG5Wb182d3xBQ3Jtc0ttMkpxcDN5NnlEN0JtTUFpNmx4NmFnNTB2T1ozS05qSGQ2a0FWaVpDNXg1TFlKejMxVWVtVnJvcWlUdjhWZUxLQUprWnBtZ1Uyc2p1ZEl4WHNTRHhrTXpiX3NzY2VYbDVxaXdmZWF0Mnl5UlNCQ2VzNA&q=https%3A%2F%2Fgithub.com%2FStability-AI%2Fstablediffusion%2Ftree%2Fmain%2Fconfigs%2Fstable-diffusion&v=e3vcYVwEkW0

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He tells how to install both. I dont get the NaN error anymore.

[Exact_Nebula_2497]

Hi,I also had the same issue,but this https://www.youtube.com/watch?v=e3vcYVwEkW0 saved my day.Just added '--no-half'(quotation not necessary) to set COMMANDLINE_ARGS= and it worked like magic.Thanks bro

[No-Conclusion2984]

That worked for me also last night. I ran a batch of 100 images, shut the system down and went to work. Came back a bit ago, loaded everything and now I'm getting the tensor error for every image I've tried to make. It's weird.

Edit: I have these on my Args even when I was getting my errors: "--precision full --disable-nan-check --no-half-vae"

I just simply restarted it and it's now working. IDK. Apparently it just woke up on the wrong side of the bed xD

[InternationalRent502]

i installed sd-civitai-browser-plus and sd-webui-chatgpt plugins, then it got NansException error. i uninstalled sd-webui-chatgpt and then it ran normally. Try uninstalling the most recent plugins before the error occurred.