Rollout is showing error - :111: attempt to index a non-table object(nil) with key 'stableRS' stack traceback: :111: in main chunk [G]: ?

Rollout is showing error - :111: attempt to index a non-table object(nil) with key 'stableRS' stack traceback: :111: in main chunk [G]: ?

This can occur if you are using or recently upgraded to Kubernetes version 1.22 or above and you are using rollout controller version 0.13.0 from chart devtron-charts/rollout or devtron/rollout. The issue can be because of CRDs which were updated in later versions of rollout chart.
  1. Check which chart repo and version of rollout controller are you using on that cluster from Helm Apps section
  2. Update the rollout chart version to latest and re-deploy. If your rollout controller is deployed from devtron-charts helm repo then change the repo to devtron/rollout and then update the version to latest. Also, if devtron helm repo is not showing on your devtron then go to Global Configurations > Chart Repositories and add a new repo with the name devtron and url https://helm.devtron.ai. Wait for few minutes and then charts from devtron repo will be there on your devtron. This should resolve your issue