Troubleshooting

Letsencrypt

When you are not able to renew a certificate, try to remove it first with

dokku certs:remove app

and then run again

dokku letsencrypt app

Unknown buildpack version

e.g. when you want to build for a newly released node lts version, but heroku can't find it. run

docker pull gliderlabs/herokuish:latest
# when this does not help, try additionally:
dokku buildpacks:set-property APP stack gliderlabs/herokuish:latest
dokku repo:purge-cache APP

and redeploy