Error launching FTB Infinity Evolved: failed to start download of file ".jar"

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Abe Thurtell

Member
Jul 29, 2019
5
0
16
I've managed to get the FTB launcher to install the Infinity Evolved modpack (which took several tries), and even got it to open the Minecraft launcher when I click the "play" button (which took several dozen tries). Now, in the Minecraft launcher that FTB opens, with FTB Infinity Evolved 1.7 selected in the drop down menu next to the Play button, I click Play, and I get this message:

Code: 
Failed to start download.
Name: .jar
URL: https://s3.amazonaws.com/Minecraft.Download/versions//.jar
Error details: Permission denied
Couldn't open file for download
Filename on disk: .jar
Path: /.jar
Exists: Nonexistent

I don't find it surprising that a file called ".jar" doesn't exist. I do find it surprising that the modpack seems to think it should exist. How can I get this to actually launch?
 
A

Abe Thurtell

Member
Jul 29, 2019
5
0
16
Update: I've also tried FTB Revelation, FTB Unstable 1.16, and FTB University and had the same error about a nonexistent file called ".jar".

FTB Omnia got a little further; clicking Play in the Minecraft launcher closes the launcher, then reopens it with a message, "An unexpected issue occurred and the game has crashed. We're sorry for the inconvenience. Exit Code: 0".

Material Energy^5: Entity is the only modpack that has successfully launched. Unfortunately that's not the modpack that I was hoping to play.
 
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