在Heroku上部署应用程序时出现最后阶段错误

Question

这是日志

C:\Users\Intel\Desktop\Disha\corona-tracker> heroku create tracker-website1  --buildpack Dish26/Corona_Tracker

Creating ⬢ tracker-website1... done
Setting buildpack to Dish26/Corona_Tracker... done
https://tracker-website1.herokuapp.com/ | https://git.heroku.com/tracker-website1.git

C:\Users\Intel\Desktop\Disha\corona-tracker>git push heroku master    


Everything up-to-date

C:\Users\Intel\Desktop\Disha\corona-tracker> heroku open

 »   Error: Missing required flag:
 »     -a, --app APP  app to run command against
 »   See more help with --help