Play Evolutions Resolve NullPointerException

Question

I am using Play 1.2.4 and deploying to Heroku. When I deployed most recently, I had a mistake in my latest db evolution (it was trying to add a column that was already there). It failed and needed to be resolved so I just ran the heroku run "play evolutions:resolve" command.

I have tried also running heroku restart and then the above command but that didn't work either.

The error I get when I run the heroku run "play evolutions:resolve" command is

Picked up JAVA_TOOL_OPTIONS: -Djava.net.preferIPv4Stack=true -Djava.rmi.server.useCodebaseOnly=true
Exception in thread "main" java.lang.NullPointerException
        at play.db.Evolutions.main(Evolutions.java:54)

How can I fix the production environment on heroku?

Answer 1

It turns out I needed to add the --%prod flag.