Slack: The `/github subscribe [repository name]` Command Fails To Subscribe In A New Channel

[bootdevice]

The GitHub app returns the following message when using the /github subscribe [repository name] command _"Either the app isn't installed on your repository or the repository does not exist. Install it to proceed."_ despite supplying a valid repo URL and having already installed the GitHub app on the Slack Workspace.

This message is returned when attempting to subscribe to a repo in a channel you have not previously granted access to either at during the initial install flow or via the GitHub Settings page here - https://slack.com/apps/A8GBNUWU8-github

Steps to reproduce

1. Install the GitHub app (https://slack.com/apps/A8GBNUWU8-github) Select the No channels option or install in a single channel.
2. Invite the GitHub app to a public or private channel or type /github and Slackbot will post an Add to this conversation button.
3. Try to add a new repo using the /github subscribe [repository name] command.
4. The repo is not added. Clicking the Install Github App button results in a GitHub 404 page.

[wilhelmklopp]

@codebymark I can't seem to reproduce this. Would you mind writing into support at https://github.com/contact and include details such as the URL of the repository, and the URL of the 404 page?

[bootdevice]

Thanks @wilhelmklopp I've sent thought the details and some screenshots via the contact form. Cheers.

[bootdevice]

Resolved via ticket. Thanks.

[siddharthgopi]

Hey @codebymark, mind sharing what worked or you? Facing this same issue.

[bootdevice]

Hi @siddharthgopi,

I think my GitHub auth was stale. I cleared the cache, reopened the browser and once I signed in again everything started working as expected. I hope this helps.

[esetnik]

@wilhelmklopp I have the same issue
/github subscribe REDACTED/REDACTED

Clicking the link goes to:
https://github.com/marketplace/slack-github/installations/new

[BradySheehan]

@esetnik I am currently experience the same issue as you with the same error message.

[zphingphong]

Exact same issue

[RoryMcCrossan]

Same issue here. If anyone has solved this, please share exact steps.

One thing to note in my case is that I am attempting to subscribe to a private repo, if it makes a difference.

[joanrodriguez]

Has the same problem, turns out the link was wrong.

Visiting https://github.com/apps/slack/installations/new solved it for me.

Stumbled upon the link here: https://github.com/portainer/portainer/issues/1955

[esetnik]

@wilhelmklopp can we get this issue reopened?

[esetnik]

@joanrodriguez That worked for me. The invalid url seems to be coming from https://github.com/integrations/slack/blob/0cfaabaa04fe5db6a4d8c33d5d71ad1760a2f32a/lib/github/index.js#L25

[kordless]

Confirming this just happened to me and using the alternate link provided by @joanrodriguez provided a work around.

[gimenete]

The wrong URL was due to a change on github.com. It is fixed now so you should always be redirected to the right URL: https://github.com/apps/slack/installations/new

[webcat12345]

https://github.com/integrations/slack/issues/559#issuecomment-424722613

This saved my life. @joanrodriguez You are a lifesaver :+1 :)

[klickparkdominik]

I am slack org owner and installed this app.

When I try to subscribe to /github subscribe directus/directus an error occures as provided above.
_Either the app isn't installed on your repository or the repository does not exist. Install it to proceed._

When I try to subscribe to /github subscribe shopware/platform it does work though.

Both are public repositories not owned by me or my org.

I can't seem to find the issue.
Can anybody confirm this?

[ArturSmiarowski-Schange]

I have the same issue as @klickparkdominik
Was able to subscribe to spring-projects but unable to spring-projects/spring-boot
I was able to subscribe to elastic/elasticsearch
But I can't subscribe to stripe/stripe-java

It seems that the integration works only on some public repos. I have the message:
Either the app isn't installed on your repository or the repository does not exist. Install it to proceed. Note: You need to be an organization owner to install the app (or ask one to install it for you).

But when I enter the link, the app is installed.

[ar5000]

Having the exact same issue- trying to subscribe to a private repo owned by an organization. I've installed Slack in GitHub and GitHub in Slack.