LAUNCH FAILED - The version you are trying to play inherits properties from an unknown version.

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leon1717

New Member
Jul 29, 2019
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Title LAUNCH FAILED - The version you are trying to play inherits properties from an unknown version.

Launcher Type Twitch Desktop App

Modpack FTB Revelation

Modpack version 1.8.0

Have you modified the pack? No

Link to log file

Details of the issue Simply put, I downloaded minecraft, then downloaded the FTB Revelation mod on twitch app. When I go to click play and click launch this is what it says. I have tried fully reinstalling everything by deleting everything minecraft, twitch, curse, and java related on my pc. I literally typed in each of those 4 words into "my pc" and deleted every single thing that came up with it, including uninstalling them the main ways from control panel. Completely wiped from my pc as best I can and reinstalled again. Reinstalled everything, even followed several guides to make sure I was doing everything correctly. Still the same error. I'm at a loss, I'm not even the least tech savvy person ever, I just don't get what's going on at all anymore.
 
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CheshireCat

New Member
Jul 29, 2019
4
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I'm having the same issue with Infinite Evolved. I've tried re-installing the modpack and chaning to launch with the jar. Neither worked.
 
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Webster91

Guest
I had the same problem. I made a video on how i fixed it :)
 

CheshireCat

New Member
Jul 29, 2019
4
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0
I tried that but I ended up getting

Error occurred during initialization of VM
Could not reserve enough space for 3145728KB object heap
Java HotSpot(TM) Client VM warning: ignoring option PermSize=256m; support was removed in 8.0
 
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crazysuites

Guest
Same I followed the video And still doesn't work.
Is there anyone that actually know how to fix this problem so we can game?
 
S

Super_miner1

Guest
I have had the exact same problem and I have also filed a bug report
I have also just found that this same problem affects all modpacks on the desktop twitch launcher
 
Last edited:

Warpshard

New Member
Jul 29, 2019
1
0
0
I'm having this problem too. I uninstalled all of my modpacks and the Twitch app itself, deleted any remanents, and reinstalled the whole thing. I'm still unable to get in-game.
 
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Dwyer

Guest
So, ive been having the same issue, ive re-installed like 500 times, one thing I did was disable onedrive and it worked... Might be worth a shot
 
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Razgoulio

Guest
So, ive been having the same issue, ive re-installed like 500 times, one thing I did was disable onedrive and it worked... Might be worth a shot
I had the same issue, though found by installing in another location other than the onedrive directory fixed it.
 
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lastraysofsun

Guest
So, ive been having the same issue, ive re-installed like 500 times, one thing I did was disable onedrive and it worked... Might be worth a shot
I have been practically tearing my hair out trying everything to sort this issue, and I have no idea why but disabling the onedrive worked for me too. Thank you!
 
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crazysuites

Guest
Ok finally after a week of messing with this stuff, I turned off OneDrive and Changed location of Curse files to a different partition on hard drive. and it worked now Granted my previous game is nowhere to be found as of yet... downside I have to start over from scratch but maybe I shall make a different one. Thanks and hope this helps
 
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whizznat

Guest
i've done some research on this and it seems that you need to save sky factory in the mincraft folder of the game. after i made this change i was able to play the game
 
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dogd3stroyer

Guest
Could you elaborate? Whizznat
i've done some research on this and it seems that you need to save sky factory in the mincraft folder of the game. after i made this change i was able to play the game
 

grandrolf

Global moderator
Team Member
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Aug 29, 2014
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sweden
All you people that post here - create your own thread and provide the information asked for - if you need instructions on how to get a log, follow instructions here:
http://support.feed-the-beast.com/faq/

If you need to share a screen shot, use some online service and provide link (imgur for example)
 
F

Freelance Chicken

Guest
This may be a clumsy solution, but the downloads folder is out of Onedrive's reach, so putting curse in there and then changing the designated path fixed the problem for me.
 
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LikelySilenced

Guest
Title LAUNCH FAILED - The version you are trying to play inherits properties from an unknown version.

Launcher Type Twitch Desktop App

Modpack FTB Revelation

Modpack version 1.8.0

Have you modified the pack? No

Link to log file

Details of the issue Simply put, I downloaded minecraft, then downloaded the FTB Revelation mod on twitch app. When I go to click play and click launch this is what it says. I have tried fully reinstalling everything by deleting everything minecraft, twitch, curse, and java related on my pc. I literally typed in each of those 4 words into "my pc" and deleted every single thing that came up with it, including uninstalling them the main ways from control panel. Completely wiped from my pc as best I can and reinstalled again. Reinstalled everything, even followed several guides to make sure I was doing everything correctly. Still the same error. I'm at a loss, I'm not even the least tech savvy person ever, I just don't get what's going on at all anymore.


This might help out a lot who are having this issue, it seems to be an issue with the forge version you are currently using. As bad as this might sound you have to delete your curse folder and twitch launcher. doing this will allow you to create a new curse folder which will resolve the "the version you are trying to play error." If i find another way to resolve this that doesn't involve deleting this to items ill keep all of you posted.
Hope this is able to help some of you out.


I believe there is a way to just delete curse and reinstall minecraft to fix this issue.
navigate to your documents folder to find the curse folder or just search for curse in your start menu.
 
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LikelySilenced

Guest
Found another solution do to the glitch happening to me again, changing your download destination to desktop/curse etc... will solve the issue

to be more specific C:\Users\Unfor\OneDrive\Desktop\Curse