Solved FTB app "failed to prepare the Minecraft launcher"

[Casmo82_Offical]

I've been trying to launch Direwolf20 1.16 but every time it tries to update the Minecraft launcher and when it gets close to finishing a message pops up saying "Unable to update Minecraft launcher" then shuts down. I then tried to reinstall the pack and whenever I do the same message pops up every time, "Failed to prepare the Minecraft launcher". It says there should be an error report but I do not know where to find it. I've updated the Minecraft launcher separately and reinstalled Minecraft, the FTB app and Overwolf multiple times. Since it was working yesterday I assume it has something to do with the new version of Minecraft that was just released but I couldn't find anyone with the same problem. I also installed older versions of Minecraft but still nothing. Any help would be greatly appreciated!

 

[thexalien]

This normally happens if you're running an anti-virus try disabling it then downloading it. They tend to get cause issues with Minecraft.

 

[Casmo82_Offical]

I disabled it, reinstalled, both Minecraft and Direwolf20 1.16 still nothing.

 

[thexalien]

Please put your logs from AppData\Local\.ftba\logs on pastebin and post the link. I'll try to help some more if the logs present anything useful.

 

[Casmo82_Offical]

I think I figured it out, I ended up installing forge on the Minecraft launcher and just moved over all the mods and config and it works perfect now. I appreciate the help though!

 

[thexalien]

Sweet, glad you got it working! Have fun, it's a good mod pack!