无法为生产预编译资产 - rails/webpacker/react/redux答案

【问题标题】：Failure to precompile assets for production - rails/webpacker/react/redux无法为生产预编译资产 - rails/webpacker/react/redux
【发布时间】：2019-12-08 07:18:26
【问题描述】：

我是 Web 开发的新手，我一直在使用 rails/webpacker/react/redux 在这个网站上工作。我正在尝试在 heroku 上部署一个网站，但无法为生产预编译资产。我不知道从哪里开始寻找...任何帮助将不胜感激！

-----> Preparing app for Rails asset pipeline
       Running: rake assets:precompile
       yarn install v1.16.0
       [1/4] Resolving packages...
       [2/4] Fetching packages...
       info fsevents@1.2.9: The platform "linux" is incompatible with this module.
       info "fsevents@1.2.9" is an optional dependency and failed compatibility check. Excluding it from installation.
       [3/4] Linking dependencies...
       warning " > @babel/preset-react@7.0.0" has unmet peer dependency "@babel/core@^7.0.0-0".
       warning "@babel/preset-react > @babel/plugin-transform-react-display-name@7.2.0" has unmet peer dependency "@babel/core@^7.0.0-0".
       warning "@babel/preset-react > @babel/plugin-transform-react-jsx@7.3.0" has unmet peer dependency "@babel/core@^7.0.0-0".
       warning "@babel/preset-react > @babel/plugin-transform-react-jsx-self@7.2.0" has unmet peer dependency "@babel/core@^7.0.0-0".
       warning "@babel/preset-react > @babel/plugin-transform-react-jsx-source@7.5.0" has unmet peer dependency "@babel/core@^7.0.0-0".
       warning "@babel/preset-react > @babel/plugin-transform-react-jsx > @babel/plugin-syntax-jsx@7.2.0" has unmet peer dependency "@babel/core@^7.0.0-0".
       warning " > react-addons-css-transition-group@15.6.2" has incorrect peer dependency "react@^15.4.2".
       warning " > webpack-dev-server@3.7.2" has unmet peer dependency "webpack@^4.0.0".
       warning "webpack-dev-server > webpack-dev-middleware@3.7.0" has unmet peer dependency "webpack@^4.0.0".
       [4/4] Building fresh packages...
       Done in 25.09s.
       I, [2019-07-30T19:26:51.897956 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-c563adbadc5eafb6708b610268fbd393d59ae41e220aae5aac99ca2d45a6e151.eot
       I, [2019-07-30T19:26:51.898552 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-c563adbadc5eafb6708b610268fbd393d59ae41e220aae5aac99ca2d45a6e151.eot.gz
       I, [2019-07-30T19:26:51.902918 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-6e70525bb429041c5ec84a81cf4733303cee90966809ed255741fa50e123ae47.eot
       I, [2019-07-30T19:26:51.903545 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-6e70525bb429041c5ec84a81cf4733303cee90966809ed255741fa50e123ae47.eot.gz
       I, [2019-07-30T19:26:51.910497 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-c141af323058f12f8b0bc760162f9928f6a415fa04940b486fdb4086284e6ecf.eot
       I, [2019-07-30T19:26:51.911418 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-c141af323058f12f8b0bc760162f9928f6a415fa04940b486fdb4086284e6ecf.eot.gz
       I, [2019-07-30T19:26:51.925980 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-f6ae6226846422df4abf64b65814d3ccd3570af5e0350983fdb01fbc0dd055d6.svg
       I, [2019-07-30T19:26:51.927785 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-f6ae6226846422df4abf64b65814d3ccd3570af5e0350983fdb01fbc0dd055d6.svg.gz
       I, [2019-07-30T19:26:51.934279 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-a849aa4ab8a20512c2e073ed66cf146c5615220c74da85c10909eb2c33d3317a.svg
       I, [2019-07-30T19:26:51.935238 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-a849aa4ab8a20512c2e073ed66cf146c5615220c74da85c10909eb2c33d3317a.svg.gz
       I, [2019-07-30T19:26:51.954168 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-7ad9caabf64ee35d113612f7bb10e531fb17ab431a51e0b088e93f89e1915549.svg
       I, [2019-07-30T19:26:51.955542 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-7ad9caabf64ee35d113612f7bb10e531fb17ab431a51e0b088e93f89e1915549.svg.gz
       I, [2019-07-30T19:26:51.961066 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-3b3fbc59f287f33a3870175b19eb94d7cbb546af2fdbab29df91ba834352d3ea.ttf
       I, [2019-07-30T19:26:51.971472 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-3b3fbc59f287f33a3870175b19eb94d7cbb546af2fdbab29df91ba834352d3ea.ttf.gz
       I, [2019-07-30T19:26:51.985214 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-418571014c9250c6197fc3ac4e8e5d96d7a49711a5d6308ca0d36b6f3045c611.ttf
       I, [2019-07-30T19:26:51.985645 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-418571014c9250c6197fc3ac4e8e5d96d7a49711a5d6308ca0d36b6f3045c611.ttf.gz
       I, [2019-07-30T19:26:51.992705 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-cef5dd667be89aa0b9d1bd0a2ceb7c017c7b183f81d0213f8f99bd380f042577.ttf
       I, [2019-07-30T19:26:51.993679 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-cef5dd667be89aa0b9d1bd0a2ceb7c017c7b183f81d0213f8f99bd380f042577.ttf.gz
       I, [2019-07-30T19:26:52.002024 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-ca734c792a24c20ff91ec878fd146b3354d4859f728f481c1089a3e2ffa2d30f.woff
       I, [2019-07-30T19:26:52.013422 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-9064839b35308c034ecf20f0335ea37331328d962baff8e589e69d01f5a56ffe.woff
       I, [2019-07-30T19:26:52.022468 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-1675e164e5ec88e30fb8c912cf9343c06c18fe419663b40de0a3bf92371b1d07.woff
       I, [2019-07-30T19:26:52.026327 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-brands-400-c885e9f2017a2ed7075db9e876d40a04aa3208114443803bdb120a34afd3b1d6.woff2
       I, [2019-07-30T19:26:52.030745 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-regular-400-e5c1d9e7bdeaf3372dee724d175d25aca879ed52ae9afd018f503e9d74e09b50.woff2
       I, [2019-07-30T19:26:52.046853 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/font-awesome/fa-solid-900-08aa3a5ee68a21d5771a70b20495b6da1c0f996c46982cd1b0447ad2db730d11.woff2
       I, [2019-07-30T19:26:52.051358 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/logo-7503965f57527ed84af8d8e378fbd4eac363d7c2957087df25708a271702bb5f.png
       I, [2019-07-30T19:26:53.190381 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/application-c0f898962791bbeb2c3d9ecc3d06f92712a9140ac95df7a5df1e49734a84f0ec.js
       I, [2019-07-30T19:26:53.190749 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/application-c0f898962791bbeb2c3d9ecc3d06f92712a9140ac95df7a5df1e49734a84f0ec.js.gz
       I, [2019-07-30T19:26:53.193892 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/README-b1a3cc3c48f8a1a0f33b1e796b0c673ecca067c6ce0478a2e6b7743a82aaf644.md
       I, [2019-07-30T19:26:54.955033 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/application-914724c57f90c908409a2348534a1b490dd732192748c57379b6a5e198833283.css
       I, [2019-07-30T19:26:54.955212 #1773]  INFO -- : Writing /tmp/build_dffa9f95caf630c57973decfff8e4f94/public/assets/application-914724c57f90c908409a2348534a1b490dd732192748c57379b6a5e198833283.css.gz
       Compiling…
       Compilation failed:

【问题讨论】：

这看起来像错误输出。就其本身而言，我们不可能确定哪里出了问题。发布您的来源，最好减少到重现错误所需的最低限度。这会让我们帮你解决这个问题。
您好，我在 GProst 的帮助下解决了这个问题。谢谢！

标签： ruby-on-rails ruby reactjs webpack redux

【解决方案1】：

尝试在您的本地机器上运行RAILS_ENV=production bin/bundle exec rake assets:precompile。如果它在本地适用，那么很可能由于 Heroku 实例上的内存不足而导致编译失败。在这种情况下，例如，您可以在内存相对较大的机器上编译这些资产以用于生产，然后简单地将编译后的文件部署到 Heroku 服务器

另外，尝试在webpacker.yml 中设置webpack_compile_output: true 以查看详细信息

【讨论】：

我试过了，这就是我得到的：RAILS_ENV=production bin/bundle exec rake assets:precompile yarn install v1.17.3 [1/4] Resolving packages...success 已经达到-日期。在 0.41 秒内完成。正在编译……编译失败：
谢谢！根据您的建议，我能够让资产在本地进行预编译，并且收到有关超出资产/入口点大小限制的警告消息。我尝试再次在 heroku 上部署，但无法在那里编译。
那就不要在那里编译，而是直接部署编译好的资产
它终于成功部署到heroku，但仍然遇到错误。现在我收到 ActionView::Template::Error (Webpacker can't find application in /app/public/packs/manifest.json
我在git中添加了public/assets并部署了它，其中包含一个以sprockets为前缀的manifest.json，我可以在其中看到application.js...