Software index is broken?

[Linkdead_]

I use a voice program called Discord and when I went to open it up this morning there was a forced update. I could choose either a .deb or a .tar. Neither one will work, they both tell me that the "Software index is broken" and to check /etc/apt/sources.list and do the whole sudo apt-get update blah blah thing. Does anyone know what that means? Googling wasn't very clear on what it means so I'm not sure what to do.

[orschiro]

Open a terminal, run the following command and paste the output:

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$ sudo apt update

[Linkdead_]

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Ign:1 http://packages.linuxmint.com sylvia InRelease
Hit:2 http://archive.canonical.com/ubuntu xenial InRelease                                                                         
Get:3 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]                                                         
Hit:4 http://packages.linuxmint.com sylvia Release                                                                                 
Hit:6 http://archive.ubuntu.com/ubuntu xenial InRelease                                                                            
Hit:7 http://ppa.launchpad.net/obsproject/obs-studio/ubuntu xenial InRelease                                                       
Ign:8 http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 ./ InRelease                
Hit:9 https://dl.winehq.org/wine-builds/ubuntu xenial InRelease                                          
Get:10 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]
Hit:11 https://dl.winehq.org/wine-builds/ubuntu trusty InRelease                    
Hit:12 http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 ./ Release
Get:14 http://archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]
Get:15 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [700 kB]
Get:16 http://archive.ubuntu.com/ubuntu xenial-updates/main i386 Packages [654 kB]
Get:17 http://archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [573 kB]
Get:18 http://archive.ubuntu.com/ubuntu xenial-updates/universe i386 Packages [534 kB]
Fetched 2,766 kB in 2s (1,242 kB/s)                        
Reading package lists... Done
Building dependency tree       
Reading state information... Done
57 packages can be upgraded. Run 'apt list --upgradable' to see them.

[thx-1138]

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Hit:11 https://dl.winehq.org/wine-builds/ubuntu trusty InRelease

...open Software Sources, and remove this.

[Linkdead_]

Did that, still doesn't work. :/

[orschiro]

Run:

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sudo apt upgrade

[austin.texas]

Run:

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sudo apt upgrade

Better to use the Update Manager to update. The Levels are important.

[thx-1138]

Did that, still doesn't work. :/

Of course it won't, that's just for removing the trusty repo that shouldn't be there in the first place. Do not mix repos for different releases, weird things happen afterwards at the very least...

...and do the whole sudo apt-get update blah blah thing.

That...'blah blah thing' is important, it's not like apt got in the mood of rambling & mumbling...you/we need each & any error message returned. I assume it was sudo apt-get install -f? If yes, try it. If after doing so it's still broke, try:

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sudo rm -vf /var/lib/apt/lists/* 

Then followed by sudo apt-get update & sudo apt-get install -f...