session with heroku run bash and run the command python manage py migrate then visit your live projectand make sure the changes you expect to see have taken effect it' easy to make mistakes during this processso don' be surprised when something goes wrong if the code doesn' workreview what you've done and try to spot the mistake if you can' find the mistake or you can' figure out how to undo the mistakerefer to the suggestions for getting help in appendix don' be shy about asking for helpeveryone else learned to build projects by asking the same questions you're likely to askso someone will be happy to help you solving each problem that arises helps you steadily develop your skills until you're building meaningfulreliable projects and you're answering other people' questions as well the secret_key setting django uses the value of the secret_key setting in settings py to implement number of security protocols in this projectwe've committed our settings file to the repository with the secret_key setting included this is fine for practice projectbut the secret_key setting should be handled more carefully for production site if you build project that' getting meaningful usemake sure you research how to handle your secret_key setting more securely deleting project on heroku it' great practice to run through the deployment process number of times with the same project or with series of small projects to get the hang of deployment but you'll need to know how to delete project that' been deployed heroku might also limit the number of projects you can host for freeand you don' want to clutter your account with practice projects log in to the heroku website (redirected to page showing list of your projects click the project you want to deleteand you'll see new page with information about the project click the settings linkand scroll down until you see link to delete the project this action can' be reversedso heroku will ask you to confirm the request for deletion by manually entering the project' name if you prefer working from terminalyou can also delete project by issuing the destroy command(ll_env)learning_logheroku apps:destroy --app appname here appname is the name of your projectwhich is either something like afternoon-meadow- or learning-log if you've renamed the project you'll be prompted to reenter the project name to confirm the deletion note deleting project on heroku does nothing to your local version of the project if no one has used your deployed project and you're just practicing the deployment processit' perfectly reasonable to delete your project on heroku and redeploy it styling and deploying an app