小贝子编程

日志含义 Heroku failed due to Heroku [router]



我不知道发生了什么或如何修复它。但是我知道构建和部署成功了，但是当它试图在heroku域上服务时出现了一个错误。这是日志

2021-09-23T17:54:03.000000+00:00 app[api]: Build started by user lotusms@outlook.com
2021-09-23T17:57:33.106282+00:00 app[api]: Deploy 311dbfec by user lotusms@outlook.com
2021-09-23T17:57:33.106282+00:00 app[api]: Release v5 created by user lotusms@outlook.com
2021-09-23T17:57:33.643634+00:00 heroku[web.1]: State changed from crashed to starting
2021-09-23T17:57:34.000000+00:00 app[api]: Build succeeded
2021-09-23T17:57:41.831375+00:00 heroku[web.1]: Starting process with command `npm start`
2021-09-23T17:57:42.751649+00:00 app[web.1]: 
2021-09-23T17:57:42.751663+00:00 app[web.1]: > luis-portfolio@1.0.0 start /app
2021-09-23T17:57:42.751664+00:00 app[web.1]: > node backend/server.js
2021-09-23T17:57:42.751664+00:00 app[web.1]: 
2021-09-23T17:57:42.850572+00:00 app[web.1]: internal/modules/cjs/loader.js:892
2021-09-23T17:57:42.850573+00:00 app[web.1]: throw err;
2021-09-23T17:57:42.850574+00:00 app[web.1]: ^
2021-09-23T17:57:42.850574+00:00 app[web.1]: 
2021-09-23T18:11:55.176407+00:00 app[web.1]: Error: Cannot find module 'express-handlebars'
2021-09-23T18:11:55.176408+00:00 app[web.1]: Require stack:
2021-09-23T18:11:55.176408+00:00 app[web.1]: - /app/backend/server.js
2021-09-23T18:11:55.176409+00:00 app[web.1]: at Function.Module._resolveFilename (internal/modules/cjs/loader.js:889:15)
2021-09-23T18:11:55.176409+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:745:27)
2021-09-23T18:11:55.176410+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:961:19)
2021-09-23T18:11:55.176410+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:92:18)
2021-09-23T18:11:55.176410+00:00 app[web.1]: at Object.<anonymous> (/app/backend/server.js:3:25)
2021-09-23T18:11:55.176410+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1072:14)
2021-09-23T18:11:55.176411+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)
2021-09-23T18:11:55.176411+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:937:32)
2021-09-23T18:11:55.176411+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:778:12)
2021-09-23T18:11:55.176412+00:00 app[web.1]: code: 'MODULE_NOT_FOUND',
2021-09-23T18:11:55.176413+00:00 app[web.1]: requireStack: [ '/app/backend/server.js' ]
2021-09-23T18:11:55.183165+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2021-09-23T18:11:55.183332+00:00 app[web.1]: npm ERR! errno 1
2021-09-23T18:11:55.187383+00:00 app[web.1]: npm ERR! luis-portfolio@1.0.0 start: `node backend/server.js`
2021-09-23T18:11:55.187508+00:00 app[web.1]: npm ERR! Exit status 1
2021-09-23T18:11:55.187587+00:00 app[web.1]: npm ERR!
2021-09-23T18:11:55.187645+00:00 app[web.1]: npm ERR! Failed at the luis-portfolio@1.0.0 start script.
2021-09-23T18:11:55.187699+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2021-09-23T18:11:55.193992+00:00 app[web.1]: 
2021-09-23T18:11:55.194070+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2021-09-23T18:11:55.194101+00:00 app[web.1]: npm ERR!     /app/.npm/_logs/2021-09-23T18_11_55_188Z-debug.log
2021-09-23T18:11:55.308995+00:00 heroku[web.1]: Process exited with status 1
2021-09-23T18:11:55.387625+00:00 heroku[web.1]: State changed from starting to crashed
2021-09-23T18:18:11.000000+00:00 app[api]: Build started by user lotusms@outlook.com
2021-09-23T18:21:37.829987+00:00 app[api]: Deploy 3133e1a6 by user lotusms@outlook.com
2021-09-23T18:21:37.829987+00:00 app[api]: Release v7 created by user lotusms@outlook.com
2021-09-23T18:21:38.000000+00:00 app[api]: Build succeeded
2021-09-23T18:21:38.201741+00:00 heroku[web.1]: State changed from crashed to starting
2021-09-23T18:21:48.297944+00:00 heroku[web.1]: Starting process with command `npm start`
2021-09-23T18:21:49.385182+00:00 app[web.1]: 
2021-09-23T18:21:49.385194+00:00 app[web.1]: > luis-portfolio@1.0.0 start /app
2021-09-23T18:21:49.385194+00:00 app[web.1]: > node backend/server.js
2021-09-23T18:21:49.385195+00:00 app[web.1]: 
2021-09-23T18:21:49.496716+00:00 app[web.1]: internal/modules/cjs/loader.js:892
2021-09-23T18:21:49.496718+00:00 app[web.1]: throw err;
2021-09-23T18:21:49.496718+00:00 app[web.1]: ^
2021-09-23T18:21:49.496719+00:00 app[web.1]: 
2021-09-23T18:21:49.496719+00:00 app[web.1]: Error: Cannot find module 'cors'
2021-09-23T18:21:49.496719+00:00 app[web.1]: Require stack:
2021-09-23T18:21:49.496720+00:00 app[web.1]: - /app/backend/server.js
2021-09-23T18:21:49.496720+00:00 app[web.1]: at Function.Module._resolveFilename (internal/modules/cjs/loader.js:889:15)
2021-09-23T18:21:49.496720+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:745:27)
2021-09-23T18:21:49.496721+00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:961:19)
2021-09-23T18:21:49.496721+00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:92:18)
2021-09-23T18:21:49.496722+00:00 app[web.1]: at Object.<anonymous> (/app/backend/server.js:5:25)
2021-09-23T18:21:49.496722+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1072:14)
2021-09-23T18:21:49.496722+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)
2021-09-23T18:21:49.496723+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:937:32)
2021-09-23T18:21:49.496723+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:778:12)
2021-09-23T18:21:49.496723+00:00 app[web.1]: at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:76:12) {
2021-09-23T18:21:49.496724+00:00 app[web.1]: code: 'MODULE_NOT_FOUND',
2021-09-23T18:21:49.496724+00:00 app[web.1]: requireStack: [ '/app/backend/server.js' ]
2021-09-23T18:21:49.496724+00:00 app[web.1]: }
2021-09-23T18:21:49.512189+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2021-09-23T18:21:49.512362+00:00 app[web.1]: npm ERR! errno 1
2021-09-23T18:21:49.515739+00:00 app[web.1]: npm ERR! luis-portfolio@1.0.0 start: `node backend/server.js`
2021-09-23T18:21:49.515768+00:00 app[web.1]: npm ERR! Exit status 1
2021-09-23T18:21:49.515827+00:00 app[web.1]: npm ERR!
2021-09-23T18:21:49.515861+00:00 app[web.1]: npm ERR! Failed at the luis-portfolio@1.0.0 start script.
2021-09-23T18:21:49.515902+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2021-09-23T18:21:49.611964+00:00 app[web.1]: 
2021-09-23T18:21:49.612101+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2021-09-23T18:21:49.612151+00:00 app[web.1]: npm ERR!     /app/.npm/_logs/2021-09-23T18_21_49_516Z-debug.log
2021-09-23T18:21:49.736450+00:00 heroku[web.1]: Process exited with status 1
2021-09-23T18:21:49.804463+00:00 heroku[web.1]: State changed from starting to crashed
2021-09-23T18:21:51.473081+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=radiant-brook-92705.herokuapp.com request_id=6652a47c-6241-4d4f-a967-ebd6c8db8091 fwd="71.57.243.26" dyno= connect= service= status=503 bytes= protocol=https
Luiss-Mac-mini:luis-portfolio lotusms$ heroku logs
2021-09-23T18:23:37.573784+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2021-09-23T18:23:37.573953+00:00 app[web.1]: npm ERR! errno 1
2021-09-23T18:23:37.577270+00:00 app[web.1]: npm ERR! luis-portfolio@1.0.0 start: `node backend/server.js`
2021-09-23T18:23:37.577315+00:00 app[web.1]: npm ERR! Exit status 1
2021-09-23T18:23:37.577365+00:00 app[web.1]: npm ERR!
2021-09-23T18:23:37.577402+00:00 app[web.1]: npm ERR! Failed at the luis-portfolio@1.0.0 start script.
2021-09-23T18:23:37.577442+00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2021-09-23T18:23:37.580907+00:00 app[web.1]: 
2021-09-23T18:23:37.580982+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2021-09-23T18:23:37.581018+00:00 app[web.1]: npm ERR!     /app/.npm/_logs/2021-09-23T18_23_37_577Z-debug.log
2021-09-23T18:23:37.695597+00:00 heroku[web.1]: Process exited with status 1
2021-09-23T18:23:37.741882+00:00 heroku[web.1]: State changed from starting to crashed
2021-09-23T18:23:37.746297+00:00 heroku[web.1]: State changed from crashed to starting
2021-09-23T18:23:47.676591+00:00 heroku[web.1]: Starting process with command `npm start`
2021-09-23T18:23:48.916311+00:00 app[web.1]: 
2021-09-23T18:23:48.916324+00:00 app[web.1]: > luis-portfolio@1.0.0 start /app
2021-09-23T18:23:48.916325+00:00 app[web.1]: > node backend/server.js
2021-09-23T18:23:48.916325+00:00 app[web.1]: 
2021-09-23T18:23:49.020052+00:00 app[web.1]: internal/modules/cjs/loader.js:892
2021-09-23T18:23:49.020053+00:00 app[web.1]: throw err;
2021-09-23T18:23:49.020054+00:00 app[web.1]: ^
2021-09-23T18:23:49.020054+00:00 app[web.1]: 
Luiss-Mac-mini:luis-portfolio lotusms$

这是怎么回事?

注:这是一个在客户端文件夹中使用React构建的应用程序，在后端文件夹中使用Express。然后是运行以下命令的主包

"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"start": "nodemon --watch backend --exec node backend/server.js",
"server": "nodemon backend/server.js",
"client": "npm start --prefix client",
"frontend": "npm run start --prefix client",
"dev": "concurrently "npm run server" "npm run start --prefix client"",
"heroku-postbuild": "NPM_CONFIG_PRODUCTION=false npm install --prefix client && npm run build --prefix client"  
},

Thanks in advance

好吧，我是这么做的。首先，如果你的根架构和我的不同，这对你来说可能会有所不同。你的包。Json和node_modules以及依赖项可能在不同的地方。但你至少可以参考我的解决方案，并进行相应的调整。

根结构

node_modules
package.json //we'll call it root-package for reference
- backend
- node_modules
package.json //we'll call it backend-package for reference
server.js
- client
- node_modules
- public
- build
- src
package.json  //we'll call it frontend-package for reference

虽然我的条目是后端文件夹中的server.js，但我实际上是通过外部包装文件夹进入的，因此我可以在后端和客户端之间保持关注点分离。

我移动了我所有的包裹。将安装在devDependencies中的json包放到dependencies文件夹中，并确保我的根包。Json服务于我的两个后端包。Json和前端包。Json并发，目录正确

"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"client-install": "npm install --prefix client",
"start": "node backend/server.js",
"server": "nodemon backend/server.js",
"client": "npm start --prefix client",
"dev": "concurrently "npm run server" "npm run client"",
"heroku-postbuild": "NPM_CONFIG_PRODUCTION=false npm install --prefix client && npm run build --prefix client"
},

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