远程：！预编译资产失败。在heroku上（Rails 6和语义UI）
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我正在尝试将Rails 6应用程序上的ruby部署到heroku，并且得到：
...
remote: I, [2020-01-23T18:51:26.163296 #1627] INFO -- : Writing /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/public/assets/semantic-ui/brand-icons-42e369dc8c372973ba77a826b62d2c7a2070532313df832a23288ddb76974158.ttf
remote: I, [2020-01-23T18:51:26.163727 #1627] INFO -- : Writing /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/public/assets/semantic-ui/brand-icons-42e369dc8c372973ba77a826b62d2c7a2070532313df832a23288ddb76974158.ttf.gz
remote: I, [2020-01-23T18:51:26.164090 #1627] INFO -- : Writing /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/public/assets/semantic-ui/brand-icons-6519a15b08294be395ed914c40236ba604214cb1163b5311a9875f1df5eed86d.svg
remote: I, [2020-01-23T18:51:26.164873 #1627] INFO -- : Writing /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/public/assets/semantic-ui/brand-icons-6519a15b08294be395ed914c40236ba604214cb1163b5311a9875f1df5eed86d.svg.gz
remote: Compiling...
remote: Compilation failed:
remote: ModuleNotFoundError: Module not found: Error: Can't resolve 'semantic-ui-sass' in '/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/packs'
remote: at factory.create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/lib/Compilation.js:925:10)
remote: at factory (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/lib/NormalModuleFactory.js:401:22)
remote: at resolver (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/lib/NormalModuleFactory.js:130:21)
remote: at asyncLib.parallel (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/lib/NormalModuleFactory.js:224:22)
remote: at /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/neo-async/async.js:2830:7
remote: at /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/neo-async/async.js:6877:13
remote: at normalResolver.resolve (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/lib/NormalModuleFactory.js:214:25)
remote: at doResolve (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:213:14)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:15:1)
remote: at resolver.doResolve (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/UnsafeCachePlugin.js:44:7)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:15:1)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:27:1)
remote: at resolver.doResolve (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/DescriptionFilePlugin.js:67:43)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn41 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:28:1)
remote: at resolver.doResolve (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/ModuleKindPlugin.js:30:40)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:15:1)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn1 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:16:1)
remote: at args (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/forEachBail.js:30:14)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:15:1)
remote: at resolver.doResolve (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/UnsafeCachePlugin.js:44:7)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:15:1)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:27:1)
remote: at resolver.doResolve (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/DescriptionFilePlugin.js:67:43)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn42 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:16:1)
remote: at hook.callAsync (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/webpack/node_modules/enhanced-resolve/lib/Resolver.js:285:5)
remote: at _fn0 (eval at create (/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:27:1)
remote: resolve 'semantic-ui-sass' in '/tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/packs'
remote: Parsed request is a module
remote: using description file: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/package.json (relative path: ./app/javascript/packs)
remote: Field 'browser' doesn't contain a valid alias configuration
remote: resolve as module
remote: looking for modules in /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript
remote: using description file: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/package.json (relative path: ./app/javascript)
remote: Field 'browser' doesn't contain a valid alias configuration
remote: using description file: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/package.json (relative path: ./app/javascript/semantic-ui-sass)
remote: no extension
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass doesn't exist
remote: .mjs
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.mjs doesn't exist
remote: .js
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.js doesn't exist
remote: .sass
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.sass doesn't exist
remote: .scss
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.scss doesn't exist
remote: .css
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.css doesn't exist
remote: .module.sass
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.module.sass doesn't exist
remote: .module.scss
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.module.scss doesn't exist
remote: .module.css
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.module.css doesn't exist
remote: .png
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.png doesn't exist
remote: .svg
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.svg doesn't exist
remote: .gif
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.gif doesn't exist
remote: .jpeg
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.jpeg doesn't exist
remote: .jpg
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass.jpg doesn't exist
remote: as directory
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/semantic-ui-sass doesn't exist
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/packs/node_modules doesn't exist or is not a directory
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/javascript/node_modules doesn't exist or is not a directory
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/app/node_modules doesn't exist or is not a directory
remote: /tmp/node_modules doesn't exist or is not a directory
remote: /node_modules doesn't exist or is not a directory
remote: looking for modules in /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules
remote: using description file: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/package.json (relative path: ./node_modules)
remote: Field 'browser' doesn't contain a valid alias configuration
remote: using description file: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/package.json (relative path: ./node_modules/semantic-ui-sass)
remote: no extension
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass doesn't exist
remote: .mjs
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.mjs doesn't exist
remote: .js
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.js doesn't exist
remote: .sass
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.sass doesn't exist
remote: .scss
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.scss doesn't exist
remote: .css
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.css doesn't exist
remote: .module.sass
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.module.sass doesn't exist
remote: .module.scss
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.module.scss doesn't exist
remote: .module.css
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.module.css doesn't exist
remote: .png
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.png doesn't exist
remote: .svg
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.svg doesn't exist
remote: .gif
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.gif doesn't exist
remote: .jpeg
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.jpeg doesn't exist
remote: .jpg
remote: Field 'browser' doesn't contain a valid alias configuration
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass.jpg doesn't exist
remote: as directory
remote: /tmp/build_f6fcbd9561d1b9a0ac9f0eb2c4fc1207/node_modules/semantic-ui-sass doesn't exist
remote:
remote:
remote: !
remote: ! Precompiling assets failed.
remote: !
remote: ! Push rejected, failed to compile Ruby app.
remote:
remote: ! Push failed
我这样做时曾尝试this：
# config/application.rb
config.assets.initialize_on_precompile = false
错误仍然存在。然后我做了this
NODE_ENV=production RAILS_ENV=production rails assets:precompile --trace
[在本地一切正常，但是如果我在本地打开样式，则不存在，如果我部署到heroku，则仍然会出现相同的错误。并且还尝试了this但仍然出现相同的错误。
答案
[在将我的Rails6 +语义UI应用程序也部署到Heroku时，我也遇到了这个问题-发布我的解决方案，以防对未来的人们有所帮助：
发生这种情况是由于SemanticUI配置错误。我的app/javascript/packs/application.js有这个：
require("semantic-ui")
而不是：
//= require("semantic-ui")
修复此行后，我的应用程序能够正确构建和部署。
以上是关于远程：！预编译资产失败。在heroku上（Rails 6和语义UI）的主要内容，如果未能解决你的问题，请参考以下文章
Heroku 部署错误；预编译资产失败（注意 devise.rb 中的行）