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javaherokujarschedulertwitter4j

Heroku "Cannot run more than 1 Free size dynos" but I'm only trying to run one

I am trying to run a command to run a one-off dyno once per hour for my app. All it does is run my code as a jar file and then sleep until the next hour when it runs again.

My current scheduler command to run is 

heroku run:detached java -jar TwitterAutoBot.jar

TwitterAutoBot.jar is the jar file that is my code to run. This command that I use for the scheduler works in git bash. The program runs perfectly then stops. But when it attempts the command with the scheduler, it says

Cannot run more than 1 Free size dynos

Running heroku ps shows that there are no active dynos for this app.

Solution

  • The scheduler launches a one-off dyno when it runs your command. And your command tries to launch another (via heroku run). Try this command instead:

    java -jar TwitterAutoBot.jar