@meaghanlewis Could you post the install log here?

@Michael-Eng Looks like we have another VS installer issue, could you help with this?

/cc @AArnott

So looks like this is a VS installer bug. MS is working on it.

Here's the install log from this issue:
install log post revert of GHfVS.txt

We're putting together the workaround instructions. Can you try these to see if they resolve the issue for you?

1. Shutdown all instances of VS
2. Update your state.json file
   • Backup your c:\programdata\Microsoft\VisualStudio\Packages_Instances[hashid]\state.json file
   • In an elevated command prompt, edit the state.json file and delete all GitHub entries in the file
3. Delete the extension directory/directories that contain the GitHub extension. Since the GitHub extension installs to a random location, we need to find the folders
   • In an elevated command prompt, go to c:\program files (x86)\Microsoft\VisualStudio[Community/Pro/Enterprise]\Common7\IDE\Extensions
   • Run “dir /s GitHub” (note that there are asterisks before and after GitHub but they're not being displayed in this thread)
   • Delete the directories that contain the GitHub files
4. Delete the extension cache files at c:\users[username]\AppData\Local\Microsoft\VisualStudio\15.0[hashid]\Extensions*.cache
5. Restart VS and reinstall the GitHub extension

Thanks!

Hi @Michael-Eng, thanks for these steps!

They work, but I actually only need to do steps 1 and 2 to be able to manage my extensions again.

Thanks @meaghanlewis. Step 3 is required so that there aren't two copies of the GitHub extension installed (bad things will happen if we see more than one copy of the GitHub extension and try to load both) and 4 forces us to rescan all extensions. Thanks for verifying the steps.

The issue is fixed in 15.4. We have also posted these workaround steps here: https://developercommunity.visualstudio.com/content/problem/102178/error-installing-github-extension.html

Okay, got it @Michael-Eng. I'll keep these workaround steps handy until this issue is fixed 😄

Thanks for all the help @Michael-Eng! I've updated the README and the website help section with a notice and links to the workarounds regarding this issue, hopefully we won't get a lot of users running into this before the fix is out 🤞

Update on how to bypass the Revert problem

A straightforward way of bypassing the "Revert" problem is to manually uninstall the extension on the command line:

1. Shutdown VS 2017
2. Open a Developer Command Prompt for VS 2017 in administrator mode by right-clicking on the Start menu shortcut and selecting Run as administrator
3. run vsixinstaller /uninstall:c3d3dc68-c977-411f-b3e8-03b0dccf7dfc to uninstall the currently installed extension

After this is done, you can install the current version from the marketplace, or any previous version from our gallery feed:

1. Go to Tools / Options / Extensions and Updates
2. Add a new gallery with the name GitHub and url https://visualstudio.github.com/releases/feed.rss
3. The gallery will now be available from Extensions and Updates inside the Online or Updates tab and you can pick from the last 10 or so versions.

vsixinstaller /uninstall:c3d3dc68-c977-411f-b3e8-03b0dccf7dfc says uninstall failed. I had already previously tried upgrading/reverting several times. What else can I try? Can I manually uninstall this?

@grokys - do you know if @toddhd can manually uninstall if the uninstall command isn't working?

@toddhd - were you ever able to resolve this?