FTB will not Launch Modpacks

[Yakkowharner]

So I got FTB a while ago and installed the FTB academy mod pack. I played the tutorial in single player, and then the last two nights played on a multiplayer server. All was going well until today. I tried to launch to play single player, but, as I was launching, it gave an error. It exited out of the error too quickly to see what it was, but now when I try to press play nothing will happen. Nothing. I tried uninstalling and reinstalling the pack, and later the FTB app itself, but, alas, nothing changed. I changed the amount of allocated RAM too, trying 3GB, 4 GB, and 5GB, but none seemed to work. All the other tutorials were very outdated, so I am wondering if there is a procedure I should follow for this. The one potential reason this may have happened is because I was out of storage, as there was a red bar where the Megabytes counter was in the loading screen, and it hit that. However, I have since cleared a few gigs of storage so I don’t know if that’s the issue anymore.

Thanks for reading! Any help would be appreciated.

 

[Quetzi]

Could you provide your App logs and your client logs, it's very difficult to even start trying to figure out what is wrong without them. See https://faq.ftb.world/books/ftb-app/page/finding-your-client-logs and https://faq.ftb.world/books/ftb-app/page/uploading-app-logs for details on how to do that.

 

[Yakkowharner]

App logs: https://pste.ch/aqutisasiw
I could not find the client logs or any crash report anywhere.

If you really need those, I can try to find them but I looked in every single .ftba folder and couldn't find anything.

 

[Quetzi]

If you've already played the pack successfully then you will have client logs, those are the ones that will show where the problem is. https://faq.ftb.world/books/ftb-app/page/finding-your-client-logs

 

[YeetMcgee]

I too have this issue. I have re-downloaded Minecraft, FTB, Jave 8, and the modpack (Revelations) still not launching. The normal Minecraft launches but not with the FTB mods. last time I played was 2 weeks ago but cant find any crash logs.

hastebin

 

[MenTalWolf]

I am also getting this Issue I have been playing the direwolf20 1.16 modpack for about a month then I updated and now nothing work i uninstalled ftb, the modpacks, I tried going to a past version I tried opening other modpacks but nothing happen no crash just simply wont open. Other minecraft lauchers work perfectly fine.

 

[Quetzi]

I too have this issue. I have re-downloaded Minecraft, FTB, Jave 8, and the modpack (Revelations) still not launching. The normal Minecraft launches but not with the FTB mods. last time I played was 2 weeks ago but cant find any crash logs.

I am also getting this Issue I have been playing the direwolf20 1.16 modpack for about a month then I updated and now nothing work i uninstalled ftb, the modpacks, I tried going to a past version I tried opening other modpacks but nothing happen no crash just simply wont open. Other minecraft lauchers work perfectly fine.

This is not helpful to the issue being discussed, if you are having problems create your own thread and link your client logs. It is impossible to help you without them.