我对我的个人网站进行了一些更改，今天当我尝试输入我的申请时收到一个应用错误，你可以在这里https://tonnon.herokuapp.com/中看到 我第一次看到这个错误。 这是heroku日志...
enter code here
2020-01-03T19:13:31.459121+00:00 app[web.1]: npm ERR! errno ENOENT
2020-01-03T19:13:31.460339+00:00 app[web.1]: npm ERR! portfoliovuejs@0.1.0 start: `vue-cli-service serve --open`
2020-01-03T19:13:31.460556+00:00 app[web.1]: npm ERR! spawn ENOENT
2020-01-03T19:13:31.460794+00:00 app[web.1]: npm ERR!
2020-01-03T19:13:31.460994+00:00 app[web.1]: npm ERR! Failed at the portfoliovuejs@0.1.0 start script.
2020-01-03T19:13:31.461219+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2020-01-03T19:13:31.466848+00:00 app[web.1]:
2020-01-03T19:13:31.467022+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2020-01-03T19:13:31.467134+00:00 app[web.1]: npm ERR! /app/.npm/_logs/2020-01-03T19_13_31_462Z-debug.log
2020-01-03T19:13:31.521461+00:00 heroku[web.1]: Process exited with status 1
2020-01-03T19:46:38.186888+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-03T19:46:44.489768+00:00 heroku[web.1]: Starting process with command `npm start`
2020-01-03T19:46:46.743868+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-03T19:46:46.727286+00:00 heroku[web.1]: Process exited with status 1
2020-01-03T19:46:46.610187+00:00 app[web.1]:
2020-01-03T19:46:46.610216+00:00 app[web.1]: > portfoliovuejs@0.1.0 start /app
2020-01-03T19:46:46.610219+00:00 app[web.1]: > vue-cli-service serve --open
2020-01-03T19:46:46.610220+00:00 app[web.1]:
2020-01-03T19:46:46.626829+00:00 app[web.1]: sh: 1: vue-cli-service: not found
2020-01-03T19:46:46.635506+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2020-01-03T19:46:46.635977+00:00 app[web.1]: npm ERR! syscall spawn
2020-01-03T19:46:46.636488+00:00 app[web.1]: npm ERR! file sh
2020-01-03T19:46:46.636960+00:00 app[web.1]: npm ERR! errno ENOENT
2020-01-03T19:46:46.638576+00:00 app[web.1]: npm ERR! portfoliovuejs@0.1.0 start: `vue-cli-service serve --open`
2020-01-03T19:46:46.638870+00:00 app[web.1]: npm ERR! spawn ENOENT
2020-01-03T19:46:46.639170+00:00 app[web.1]: npm ERR!
2020-01-03T19:46:46.639511+00:00 app[web.1]: npm ERR! Failed at the portfoliovuejs@0.1.0 start script.
2020-01-03T19:46:46.639806+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2020-01-03T19:46:46.652996+00:00 app[web.1]:
2020-01-03T19:46:46.658186+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2020-01-03T19:46:46.658310+00:00 app[web.1]: npm ERR! /app/.npm/_logs/2020-01-03T19_46_46_641Z-debug.log
2020-01-03T20:35:07.408189+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-03T20:35:13.810176+00:00 heroku[web.1]: Starting process with command `npm start`
2020-01-03T20:35:16.029657+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-03T20:35:16.007060+00:00 heroku[web.1]: Process exited with status 1
2020-01-03T20:35:15.924744+00:00 app[web.1]:
2020-01-03T20:35:15.924761+00:00 app[web.1]: > portfoliovuejs@0.1.0 start /app
2020-01-03T20:35:15.924765+00:00 app[web.1]: > vue-cli-service serve --open
2020-01-03T20:35:15.924767+00:00 app[web.1]:
2020-01-03T20:35:15.930888+00:00 app[web.1]: sh: 1: vue-cli-service: not found
2020-01-03T20:35:15.936500+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2020-01-03T20:35:15.937014+00:00 app[web.1]: npm ERR! syscall spawn
2020-01-03T20:35:15.937425+00:00 app[web.1]: npm ERR! file sh
2020-01-03T20:35:15.937779+00:00 app[web.1]: npm ERR! errno ENOENT
2020-01-03T20:35:15.939404+00:00 app[web.1]: npm ERR! portfoliovuejs@0.1.0 start: `vue-cli-service serve --open`
2020-01-03T20:35:15.939590+00:00 app[web.1]: npm ERR! spawn ENOENT
2020-01-03T20:35:15.939773+00:00 app[web.1]: npm ERR!
2020-01-03T20:35:15.940020+00:00 app[web.1]: npm ERR! Failed at the portfoliovuejs@0.1.0 start script.
2020-01-03T20:35:15.940220+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2020-01-03T20:35:15.949765+00:00 app[web.1]:
2020-01-03T20:35:15.949885+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2020-01-03T20:35:15.949980+00:00 app[web.1]: npm ERR! /app/.npm/_logs/2020-01-03T20_35_15_941Z-debug.log
2020-01-03T21:53:26.000000+00:00 app[api]: Build started by user lucastonnon@gmail.com
2020-01-03T21:54:36.873387+00:00 app[api]: Deploy 5e9ac131 by user lucastonnon@gmail.com
2020-01-03T21:54:36.873387+00:00 app[api]: Release v8 created by user lucastonnon@gmail.com
2020-01-03T21:54:37.407209+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-03T21:54:43.517069+00:00 heroku[web.1]: Starting process with command `npm start`
2020-01-03T21:54:45.955898+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-03T21:54:45.960885+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-03T21:54:45.938972+00:00 heroku[web.1]: Process exited with status 1
2020-01-03T21:54:45.846176+00:00 app[web.1]:
2020-01-03T21:54:45.846191+00:00 app[web.1]: > portfoliovuejs@0.1.0 start /app
2020-01-03T21:54:45.846194+00:00 app[web.1]: > vue-cli-service serve --open
2020-01-03T21:54:45.846197+00:00 app[web.1]:
2020-01-03T21:54:45.862477+00:00 app[web.1]: sh: 1: vue-cli-service: not found
2020-01-03T21:54:45.867893+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2020-01-03T21:54:45.868380+00:00 app[web.1]: npm ERR! syscall spawn
2020-01-03T21:54:45.868720+00:00 app[web.1]: npm ERR! file sh
2020-01-03T21:54:45.868926+00:00 app[web.1]: npm ERR! errno ENOENT
2020-01-03T21:54:45.870030+00:00 app[web.1]: npm ERR! portfoliovuejs@0.1.0 start: `vue-cli-service serve --open`
2020-01-03T21:54:45.870280+00:00 app[web.1]: npm ERR! spawn ENOENT
2020-01-03T21:54:45.870568+00:00 app[web.1]: npm ERR!
2020-01-03T21:54:45.870831+00:00 app[web.1]: npm ERR! Failed at the portfoliovuejs@0.1.0 start script.
2020-01-03T21:54:45.870993+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2020-01-03T21:54:45.880785+00:00 app[web.1]:
2020-01-03T21:54:45.881055+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2020-01-03T21:54:45.881215+00:00 app[web.1]: npm ERR! /app/.npm/_logs/2020-01-03T21_54_45_872Z-debug.log
2020-01-03T21:54:47.000000+00:00 app[api]: Build succeeded
2020-01-03T21:54:53.006909+00:00 heroku[web.1]: Starting process with command `npm start`
2020-01-03T21:54:55.675718+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-03T21:54:55.652599+00:00 heroku[web.1]: Process exited with status 1
2020-01-03T21:54:55.552727+00:00 app[web.1]:
2020-01-03T21:54:55.552776+00:00 app[web.1]: > portfoliovuejs@0.1.0 start /app
2020-01-03T21:54:55.552788+00:00 app[web.1]: > vue-cli-service serve --open
2020-01-03T21:54:55.552790+00:00 app[web.1]:
2020-01-03T21:54:55.560023+00:00 app[web.1]: sh: 1: vue-cli-service: not found
2020-01-03T21:54:55.566956+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2020-01-03T21:54:55.567538+00:00 app[web.1]: npm ERR! syscall spawn
2020-01-03T21:54:55.568011+00:00 app[web.1]: npm ERR! file sh
2020-01-03T21:54:55.568471+00:00 app[web.1]: npm ERR! errno ENOENT
2020-01-03T21:54:55.570221+00:00 app[web.1]: npm ERR! portfoliovuejs@0.1.0 start: `vue-cli-service serve --open`
2020-01-03T21:54:55.570542+00:00 app[web.1]: npm ERR! spawn ENOENT
2020-01-03T21:54:55.570929+00:00 app[web.1]: npm ERR!
2020-01-03T21:54:55.571255+00:00 app[web.1]: npm ERR! Failed at the portfoliovuejs@0.1.0 start script.
2020-01-03T21:54:55.571570+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2020-01-03T21:54:55.582923+00:00 app[web.1]:
2020-01-03T21:54:55.583206+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2020-01-03T21:54:55.583416+00:00 app[web.1]: npm ERR! /app/.npm/_logs/2020-01-03T21_54_55_573Z-debug.log
2020-01-03T21:55:17.709701+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=tonnon.herokuapp.com request_id=769ad3a7-24d2-4a8a-9f6d-d455dfc052f7 fwd="189.34.170.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-03T21:55:18.344994+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=tonnon.herokuapp.com request_id=2ba9a8c4-3b52-4df3-8baa-515ed211a8a4 fwd="189.34.170.129" dyno= connect= service= status=503 bytes= protocol=https
有人说503是因为他们正在维护，但是我在heroku上的其他Web应用程序却正常工作