Angular 2/Nodejs 部署到 heroku 错误 heroku-postbuild: `ng build`

Question

我想将 angular2/nodejs 应用程序部署到 heroku。

版本： “节点”：“8.x”，“npm”：“3.10.9”

配置完成后出现此错误：

> "/tmp/build_a3ccb3e805890c0441cf2241d8620683/.heroku/node/bin/npm"
> "run" "heroku-postbuild" "--if-present"
>     remote: npm ERR! node v8.5.0
>     remote: npm ERR! npm  v3.10.9
>     remote: npm ERR! code ELIFECYCLE
>     remote: npm ERR! lists-book@0.0.1 heroku-postbuild: `ng build`
>     remote: npm ERR! Exit status 1
>     remote: npm ERR! 
>     remote: npm ERR! Failed at the lists-book@0.0.1 heroku-postbuild script 'ng build'.
>     remote: npm ERR! Make sure you have the latest version of node.js and npm installed.
>     remote: npm ERR! If you do, this is most likely a problem with the lists-book package,
>     remote: npm ERR! not with npm itself.
>     remote: npm ERR! Tell the author that this fails on your system:
>     remote: npm ERR!     ng build
>     remote: npm ERR! You can get information on how to open an issue for this project with:
>     remote: npm ERR!     npm bugs lists-book
>     remote: npm ERR! Or if that isn't available, you can get their info via:
>     remote: npm ERR!     npm owner ls lists-book
>     remote: npm ERR! There is likely additional logging output above.

我多次更改此行但仍然出现相同的错误，并且它不起作用：

“heroku-postbuild”：“ng build”，或“heroku-postbuild”：“ng build --env=prod --aot=false”，或“heroku-postbuild”：“ng build --aot -产品”

我的 package.json 的一部分

"angular-cli": {},
  "scripts": {
    "ng": "ng",
    "start": "node server.js",
    "test": "ng test",
    "pree2e": "webdriver-manager update --standalone false --gecko false",
    "e2e": "protractor",
    "heroku-postbuild": "ng build",
    "build_prod": "npm run build && browserify -s main dist/main.js > dist/bundle.js && npm run minify",
    "minify": "uglifyjs dist/inline.bundle.js --screw-ie8 --compress --mangle --output dist/inline.bundle.js; uglifyjs dist/main.bundle.js --screw-ie8 --compress --mangle --output dist/main.bundle.js; uglifyjs dist/styles.bundle.js --screw-ie8 --compress --mangle --output dist/styles.bundle.js; uglifyjs dist/polyfills.bundle.js --screw-ie8 --compress --mangle --output dist/polyfills.bundle.js; uglifyjs dist/vendor.bundle.js --screw-ie8 --compress --mangle --output dist/vendor.bundle.js; json-minify src/assets/translations/pl.json > dist/assets/translations/pl.json; json-minify src/assets/translations/en.json > dist/assets/translations/en.json; json-minify src/assets/translations/es.json > dist/assets/translations/es.json"
  }

Answer 1

您没有附加整个 package.json 文件，但 Heroku 似乎不知道“ng build”命令。

确保将 angular-cli 放在 package.json 的依赖项部分，而不是 devDependencies。