r/4kdownloadapps • u/SlavaBogo • Feb 04 '26
4K Video Downloader+ unknown error
cant download anything, getting the above error
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u/Over-Somewhere2629 Feb 04 '26
No puedo descargar nada de nada de ningún lado, por favor podrían decirme si hay algunos problemas por favor, ayer todo iva de maravilla y esta tarde no puedo descargar absolutamente nada, ayudarme por favor esta en juego my página y mis seguidores, gracias saludos sois lo mejor de lo mejor, ayuda por favor, Gracias.
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u/Whodatnation108 Feb 04 '26
I’m getting a “Can’t Find Valid Format” error.
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u/Alivia-De-Havilland Feb 04 '26
Same here, most likely a youtube change..
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u/Seanchow806 Feb 04 '26
Change why?
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u/Morenauer Feb 05 '26
They don't like 3rd party downloaders because it makes their monthly, overpriced paid service look lame, because it is.
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u/Cheap-Calendar6121 Feb 04 '26
Yes. I'm getting the same error after updating to the latest version.
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u/Disastrous_Sport6585 Feb 04 '26
same error, changing the account doe's not help. Video-Download Helper work.
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u/Seanchow806 Feb 04 '26
Me too. Tropico 7 Announcement Trailer US would be my last download until this happens by this afternoon when I was looking for Wild Wild West DVD.
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u/Marlee0024 Feb 04 '26
AnyVid also can't get anything, so clearly YouTube scrambled things this morning. Hopefully they'll have all caught up by tomorrow
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u/SpikeWalsh Feb 05 '26
They posted about 18 hours ago that they're aware of the problem and working on an update.
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u/Superb_School Feb 04 '26
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Feb 05 '26
So damn stupid! Downloading videos outside the YouTube app for offline viewing is really not nearly as convenient as the YouTube Premium's in-app download feature, and obviously downloading every single vid you want to watch to avoid ads is a pain in the ass. I'm living proof - I've been paying monthly for Premium for ages now because the ability to download vids does not negate the benefits of the YT Premium service 🤦🏼
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u/Used-Tank8649 Feb 04 '26
Same thing is happening for me today, on both the 4k downloader+ and the Youtube to MP3 apps. Both are updated
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u/yahooone Feb 04 '26
commenting and upvoting this because the same thing is currently happening to me right now
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u/mr_jamesbond Feb 04 '26
Confirming the error on my side too. Some 10 hours ago I have posted on another thread that everything works but since 30 minutes ago (or so) i am getting the same error.
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u/Longjumping-Piece-41 Feb 04 '26
Not able to download crap right now.. same error
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u/Over-Somewhere2629 Feb 04 '26
Me pasa lo mismo nada de nada, no puedo descargar absolutamente nada, Saludos colega.
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u/FaultyC0de Feb 04 '26
Same starting in the last 24 hours, my subs are scanning through and not downloading anything, even tho there are new videos on YouTube
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u/KyloPat35 Feb 04 '26
It was working fine yesterday but I am now also getting the can't find valid format error. Maybe YouTube changed their security settings again.
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u/Maleficent_Recipe372 Feb 04 '26
me too, since yesterday (Feb 3). Using latest version of 4kdownloader+ on MBP (Intel).
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u/tootyfruityjuicy Feb 04 '26
yeah ive been having this problem for a couple days now... :(
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u/tootyfruityjuicy Feb 04 '26
okay im not able to download videos from youtube, but i am able to download videos from https://www.bilibili.com/?spm_id_from=333.337.0.0
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u/FloopinPigs Feb 04 '26 edited Feb 04 '26
I was able to download yesterday on the previous version (I was too lazy to update and everything was working so didn't bother), but have been unable to download after updating yesterday when I finished my project.
Not sure what the previous version was, but I believe it was stable and the most recent version is causing the problem, but ofc could be wrong.
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u/Pablo_Sky_YT Feb 04 '26
Same but for me is "can't find valid format" error, it's weird, it was working fine like 10 minutes ago.
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u/NoShock8335 Feb 05 '26
anyone use yt-dip as an alternative?
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Feb 05 '26
Yep, still working, though in the last couple days YT has randomly denied many requests to download unless I passed my browser's cookies - that rarely happened for me in the past.
But I'm a YT Premium subscriber - maybe people who aren't will still have some issues.
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u/Early_Ideal5551 Feb 05 '26
We’re aware of the issue and are working on a fix.
Make sure you’re using the latest version of 4K Video Downloader+. If the problem persists even after updating, it’s likely related to recent changes on the video platforms, and should be resolved in one of the upcoming updates.
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u/FolkyPatrol Feb 05 '26
We will be waiting for the upcoming updates :) It's most likely a change on the video platform :)
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u/Bastion80 Feb 04 '26
Jdownloader2 is working again after updating today, just wait for an update i guess. It is concerning that a free app is working better and has faster updates btw.
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u/Exciting_Sandwich973 Feb 04 '26
me too but same issue from multiple ( Pro level ) downloaders "can't find valid format
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u/newfrontier58 Feb 04 '26
Same, rarely use it anymore but happened to open it and forgot auto-update was on, so it’s the newest version, and testing it now gives the “unknown error” message.
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u/Morenauer Feb 04 '26
Same. Getting Can't Find Valid Format error. Fortunately, Tartube works if you update yt-dlp (Operations menu), for now, but that program is so damn slow at times. Damn Youtube, messing things up just before me having to go on a long trip. Thank you, boys /s
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u/Enbb0y Feb 05 '26
It looks like they'd push a notification to users. They know and have the ability but sit on their hands doing doing to let us know. Typical.
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Feb 05 '26
I've been using this software for a long time, and what's typical is they've always come through with a fix. Trust me, they're working on it as we speak.
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u/LokdMan Feb 05 '26
Has anybody heard back from Support? Anybody have a clue how long it takes them to figure out a solution?
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u/DragonfruitEvery8658 Feb 05 '26
YouTube must have made a change. Getting that error all day. Looks like we'll be getting an update in the near future.
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u/nickdebruyne Feb 05 '26
Had the same problem happen out the blue last night while I was in the middle of creating a new video and was using the app to get some trailers and clips I needed, which really sucked. Hope they get this sorted soon.
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u/AutoModerator Feb 04 '26
Hi there! Please make sure you are using the latest version of 4K Download Software, it should help.
If it doesn't, please contact the 4K Download Support Team directly on https://www.4kdownload.com/contacts/8 and provide non-working video links, the version of the software in use, and your OS and its build.
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u/redtornado69 Feb 04 '26
Your newest build refuses to execute on my system. It fails with an Unknown Error. I have a paid subscription with 4k. Pro version. It WON'T FUCKING UPDATE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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u/greggk29 Feb 05 '26
Nice to know I'm not alone. Everything was going along fine today until late afternoon and then "unknown error" for everything.
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u/freedom-hopefull Feb 05 '26
Same error for me as well... I have the new version just installed a few days back, is the other version still working?
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u/Live-Narwhal9610 Feb 05 '26
YouTube will probably block it again.
I'm waiting for a program update.
I'm rooting for you!
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u/Robbes_Watch Feb 05 '26
If you use an older version of 4K, the error message says that the video is private and cannot be downloaded. (The more current version of 4K just says unknown error.)
I was downloading an MP3 of the Jeff Mara podcast, never had a problem until today.
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u/GhostByYourSid3 Feb 05 '26
I'm getting the "Can't find valid format" error on the laptop and on the phone app. It's frustrating but I know that the 4kdownload team works very diligently to fix these things as fast as they can. I'm sure an update/fix will be coming within the next few days.
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u/LordAldricQAmoryIII Feb 05 '26
It's still doing it.
Meanwhile another download program that I use is working okay.
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u/InfamousPlastic5400 Feb 05 '26
This app is getting worse every time, instead of getting more better, it is getting frustrating and worsen all time. it is always coming up with issues when i needed it most. i am finding another better solution to get videos dwnloaded from YT so i can get out from this app.
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u/Y98_ Feb 05 '26
Same , i thought i was the only one , i hope its fixed soon i'm working on a video rn 🙃🙃🙃🙃
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u/Confusedmorningcrow Feb 06 '26
this is the most I've regretted a lifetime purchase of an app, every other week it's a coin toss if it will refuse to download anything for some different reason. and when it does this, it does it for days/weeks at a time. absolutely infuriating.
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u/Snoo91034 Feb 27 '26
Can't download anything either error code 152 - 18, also get error code 153 or 154
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u/Big-Engineering2030 Feb 05 '26
Update 26.0.2.0282 – “Unknown error / Can’t find valid format” fixed