Can't install the git PPA in WSL?

[leungi]

Environment

Windows build number: 
> Microsoft Windows [Version 10.0.17134.1550]

Your Distribution version: 
> leungi@DHOHNHL1S2:~$ lsb_release -r
> Release:        18.04

Whether the issue is on WSL 2 and/or WSL 1: 
> leungi@DHOHNHL1S2:~$ cat /proc/version
Linux version 4.4.0-17134-Microsoft (Microsoft@Microsoft.com) (gcc version 5.4.0 (GCC) ) #1488-Microsoft Mon May 05 16:17:00 PST 2020

Steps to reproduce

Trying to add external repo for latest package version.

sudo add-apt-repository ppa:git-core/ppa

There's a related #3557, but closed without much solution walk-through.

Following this SO post didn't resolve it.

Expected behavior

Following the repo add, expected apt list to show added repo.

$ apt list -a git
Listing... Done
git/bionic 1:2.26.0-1~ppa1~ubuntu18.04.1 amd64 [upgradable from: 1:2.17.1-1ubuntu0.5]
git/bionic-updates,bionic-security,now 1:2.17.1-1ubuntu0.5 amd64 [installed,upgradable to: 1:2.26.0-1~ppa1~ubuntu18.04.1]
git/bionic 1:2.17.0-1ubuntu1 amd64

Actual behavior

Cannot add PPA: 'ppa:~git-core/ubuntu/ppa'.
ERROR: '~git-core' user or team does not exist.

[sr229]

I don't think the PPA exists yet for this specific Ubuntu version, AFAIK you should be using the default distro provided git.

[leungi]

Thanks for comment @sr229; launchpad does show it being built for 18.04.

[sr229]

That's weird, I also tried it myself but the PPA adds correctly, might be your network connection?

[leungi]

Finally solved the issue, thanks to some useful posts; steps as follow:

1. add PPA manually

• sudo add-apt-repository 'deb http://ppa.launchpad.net/git-core/ppa/ubuntu focal main'

2. try sudo apt update. If it complains about The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5523BAEEB01FA116, do:

• curl -sL "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x5523BAEEB01FA116" | sudo apt-key add, replcaing 0x5523BAEEB01FA116 with 0x<PUBKEY from above> (🙏 Ubuntu 18.04 gpg dirmngr IPC connect call failed #3286)

3. run sudo apt update for final refresh 🙌

[SeanDongX]

This so worked for me
basically it's a proxy issue for me, you need to add -E to the command to preserve the env vars
sudo -E add-apt-repository ppa:...

[noamzilo]

For me it was a synchronization issue. the host time got messed up and had to be synchronized again. Check the date is correct with date. If not, use sudo rdate -n <IP_OF_TIME_PROVIDER>.