@wakandan: Add these to your config.yml
slack.client-id: <'client id'>
slack.client-secret: <'client secret'>
slack.verification-token: <'verification token'>
Please refer Slack Configuration. Hope this helps.
Closing due to lack of any proper details. @wakandan I'd recommend searching the forums (https://forum.sentry.io/) and existing issues before posting a new issue here and then adding as many details as possible for a quicker resolution and response.
I have the same issue.
"OAuth Error: Please specify client_id"
It happens when I click "Add Workspace" at "Slack Integration" page.
Dockerized Slack installation.
For anyone who had the same issue, I managed to make it work by(apart from following this tutorial):
sentry/config.ymldocker-compose builddocker-compose up -dI've managed to solve the Problem (also on premise sentry 9.1.2 installation with the official sentry docker image from hub.docker.com).
Like @xuqingfeng I also followed this tutorial: How to configure Slack in your on-prem Sentry
Unlike @xuqingfeng I didn't build a new Docker image. I just set the following ENV's:
After that I followed the next steps described in the tutorial.
where i can find all this variables ?
slack.client-id: <'client id'>
slack.client-secret: <'client secret'>
slack.verification-token: <'verification token'>
perhaps this HowTo is not relevant anymore? I can't see any Basic Information

Most helpful comment
I have the same issue.
"OAuth Error: Please specify
client_id"It happens when I click "Add Workspace" at "Slack Integration" page.
Dockerized Slack installation.