我正在使用以下命令将代码上传到heroku：
git push heroku master
但是每当我推送代码时，整个代码就会推送到服务器上，但是除了应用程序错误之外，什么都没有。
2018-11-17T07:14:17.465955+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=ecodrivebot.herokuapp.com request_id=47dc6aff-19dc-45e3-8a86-2d41eeef86b0 fwd="122.180.29.179" dyno= connect= service= status=503 bytes= protocol=https
2018-11-17T07:14:18.030853+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=ecodrivebot.herokuapp.com request_id=a36f8e6d-84c3-4aeb-b335-f3e480ab869b fwd="122.180.29.179" dyno= connect= service= status=503 bytes= protocol=https
2018-11-17T07:14:47.067912+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=ecodrivebot.herokuapp.com request_id=6448accb-f478-4a4d-a077-0098d266d5d3 fwd="122.180.29.179" dyno= connect= service= status=503 bytes= protocol=https
2018-11-17T07:14:47.532683+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=ecodrivebot.herokuapp.com request_id=215a0285-eb73-44b0-86c9-55d62c037093 fwd="122.180.29.179" dyno= connect= service= status=503 bytes= protocol=https