尝试在Heroku上部署Rails应用程序时遇到一些困难。尝试编译时出现了这个奇怪的错误日志。我认为这与节点模块有关，但我不确定。
我完全不知道如何解释错误，将不胜感激！感谢您的阅读！
-----> Node.js app detected
-----> Creating runtime environment
NPM_CONFIG_LOGLEVEL=error
NODE_VERBOSE=false
NODE_ENV=production
NODE_MODULES_CACHE=true
-----> Installing binaries
engines.node (package.json): unspecified
engines.npm (package.json): unspecified (use default)
engines.yarn (package.json): unspecified (use default)
Resolving node version 10.x...
Downloading and installing node 10.13.0...
Using default npm version: 6.4.1
Resolving yarn version 1.x...
Downloading and installing yarn (1.12.1)...
Installed yarn 1.12.1
-----> Restoring cache
Cached directories were not restored due to a change in version of node, npm, yarn or stack
Module installation may take longer for this build
-----> Building dependencies
Installing node modules (yarn.lock)
yarn install v1.12.1
warning package.json: No license field
warning No license field
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.1.3: The platform "linux" is incompatible with this module.
info "fsevents@1.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning "@rails/webpacker > postcss-cssnext@3.0.2" has unmet peer dependency "caniuse-lite@^1.0.30000697".
warning " > webpack-dev-server@2.11.2" has unmet peer dependency "webpack@^2.2.0 || ^3.0.0".
warning "webpack-dev-server > webpack-dev-middleware@1.12.2" has unmet peer dependency "webpack@^1.0.0 || ^2.0.0 || ^3.0.0".
[4/4] Building fresh packages...
Done in 150.36s.
-----> Caching build
- node_modules
-----> Pruning devDependencies
yarn install v1.12.1
warning package.json: No license field
warning No license field
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.1.3: The platform "linux" is incompatible with this module.
info "fsevents@1.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning "@rails/webpacker > postcss-cssnext@3.0.2" has unmet peer dependency "caniuse-lite@^1.0.30000697".
warning " > webpack-dev-server@2.11.2" has unmet peer dependency "webpack@^2.2.0 || ^3.0.0".
warning "webpack-dev-server > webpack-dev-middleware@1.12.2" has unmet peer dependency "webpack@^1.0.0 || ^2.0.0 || ^3.0.0".
[4/4] Building fresh packages...
warning Ignored scripts due to flag.
Done in 5.21s.
-----> Build succeeded!
! Unmet dependencies don't fail yarn install but may cause runtime issues
https://github.com/npm/npm/issues/7494
-----> Ruby app detected
-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.3.5
-----> Installing dependencies using bundler 1.15.2
Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
Warning: the running version of Bundler (1.15.2) is older than the version that created the lockfile (1.16.3). We suggest you upgrade to the latest version of Bundler by running `gem install bundler`.
Fetching gem metadata from https://rubygems.org/.........
Fetching version metadata from https://rubygems.org/..
Fetching dependency metadata from https://rubygems.org/.
Using rake 12.3.0
Using concurrent-ruby 1.0.5
Using minitest 5.11.3
Using thread_safe 0.3.6
Using builder 3.2.3
Using erubi 1.7.0
Using mini_portile2 2.3.0
Using crass 1.0.3
Using rack 2.0.5
Using nio4r 2.2.0
Using websocket-extensions 0.1.3
Using mini_mime 1.0.0
Using coffee-script-source 1.12.2
Using execjs 2.7.0
Using method_source 0.9.0
Using thor 0.20.0
Using formtastic_i18n 0.6.0
Using kaminari-core 1.1.1
Using arel 8.0.0
Using rb-fsevent 0.10.2
Using ffi 1.9.18
Using public_suffix 3.0.2
Using browser 2.5.3
Using geocoder 1.4.7
Using referer-parser 0.3.0
Using errbase 0.1.0
Using user_agent_parser 2.4.1
Using httpclient 2.8.3
Using json 2.1.0
Using analytics-ruby 2.0.13
Using aws_cf_signer 0.1.3
Using bcrypt 3.1.11
Using bundler 1.15.2
Using mime-types-data 3.2016.0521
Using climate_control 0.2.0
Using orm_adapter 0.5.0
Using unf_ext 0.0.7.5
Using netrc 0.11.0
Using cocoon 1.2.11
Using connection_pool 2.2.1
Using dotenv 2.2.1
Using multipart-post 2.0.0
Using hashie 3.5.7
Using multi_json 1.13.1
Using jwt 1.5.6
Using mini_magick 4.8.0
Using multi_xml 0.6.0
Using pg 0.21.0
Using puma 3.11.2
Using redis 4.0.1
Using tilt 2.0.8
Using slack-notifier 2.3.2
Using i18n 0.9.3
Using tzinfo 1.2.4
Using nokogiri 1.8.2
Using websocket-driver 0.6.5
Using coffee-script 2.4.1
Using autoprefixer-rails 7.2.5
Using uglifier 4.1.5
Using rack-test 0.8.2
Using sprockets 3.7.2
Using request_store 1.4.1
Using appsignal 2.5.1
Using warden 1.2.7
Using rack-protection 2.0.1
Using rack-proxy 0.6.3
Using mail 2.7.0
Using figaro 1.1.1
Using addressable 2.5.2
Using rb-inotify 0.9.10
Using safely_block 0.2.1
Using algoliasearch 1.19.1
Using postmark 1.11.0
Using mime-types 3.1
Using terrapin 0.6.0
Using unf 0.1.4
Using faraday 0.12.2
Using omniauth 1.8.1
Using i18n-js 3.0.5
Using activesupport 5.1.4
Using loofah 2.2.1
Using sidekiq 5.1.1
Using algoliasearch-rails 1.20.4
Using cocaine 0.6.0
Using sass-listen 4.0.0
Using domain_name 0.5.20170404
Using oauth2 1.4.0
Using rails-dom-testing 2.0.3
Using globalid 0.4.1
Using arbre 1.1.1
Using activemodel 5.1.4
Using jbuilder 2.7.0
Using pundit 1.1.0
Using rails-html-sanitizer 1.0.3
Using sass 3.5.5
Using ckeditor 4.2.4
Using omniauth-oauth2 1.5.0
Using activejob 5.1.4
Using activerecord 5.1.4
Using carrierwave 1.2.2
Using http-cookie 1.0.3
Using actionview 5.1.4
Using sidekiq-failures 1.0.0
Using omniauth-google-oauth2 0.5.3
Using omniauth-linkedin-oauth2 0.2.5
Using rest-client 2.0.2
Using actionpack 5.1.4
Using kaminari-actionview 1.1.1
Using kaminari-activerecord 1.1.1
Using polyamorous 1.3.3
Using friendly_id 5.1.0
Using globalize 5.1.0
Using cloudinary 1.8.3
Using actioncable 5.1.4
Using actionmailer 5.1.4
Using railties 5.1.4
Using formtastic 3.1.5
Using has_scope 0.7.1
Using sprockets-rails 3.2.1
Using simple_form 3.5.0
Using kaminari 1.1.1
Using ransack 1.8.7
Using bootstrap-sass 3.3.7
Using font-awesome-sass 4.7.0
Using postmark-rails 0.16.0
Using coffee-rails 4.2.2
Using responders 2.4.0
Using jquery-rails 4.3.1
Using ahoy_matey 2.0.2
Using jquery-ui-rails 6.0.1
Using rails 5.1.4
Using sass-rails 5.0.7
Using webpacker 3.2.1
Using wicked 1.3.2
Using inherited_resources 1.8.0
Using devise 4.4.1
Using activeadmin 1.2.1
Using activeadmin_quill_editor 0.1.2
Using devise-i18n 1.6.1
Bundle complete! 48 Gemfile dependencies, 139 gems now installed.
Gems in the groups development and test were not installed.
Bundled gems are installed into ./vendor/bundle.
Bundle completed (4.60s)
Cleaning up the bundler cache.
Warning: the running version of Bundler (1.15.2) is older than the version that created the lockfile (1.16.3). We suggest you upgrade to the latest version of Bundler by running `gem install bundler`.
The latest bundler is 1.17.1, but you are currently running 1.15.2.
To update, run `gem install bundler`
-----> Detecting rake tasks
-----> Preparing app for Rails asset pipeline
Running: rake assets:precompile
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Loading Rails (5.1.4) integration
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Starting AppSignal 2.5.1 (vendor/bundle/bin/rake, Ruby 2.3.5, x86_64-linux)
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Installing action_cable hook
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Installing active_support_notifications hook
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Installing net_http hook
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Installing rake hook
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Installing redis hook
[2018-11-04T02:40:05 (process) #6617][INFO] appsignal: Installing sidekiq hook
yarn install v1.12.1
warning package.json: No license field
warning No license field
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.1.3: The platform "linux" is incompatible with this module.
info "fsevents@1.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning "@rails/webpacker > postcss-cssnext@3.0.2" has unmet peer dependency "caniuse-lite@^1.0.30000697".
warning " > webpack-dev-server@2.11.2" has unmet peer dependency "webpack@^2.2.0 || ^3.0.0".
warning "webpack-dev-server > webpack-dev-middleware@1.12.2" has unmet peer dependency "webpack@^1.0.0 || ^2.0.0 || ^3.0.0".
[4/4] Building fresh packages...
Done in 25.45s.
Webpacker is installed
Using /tmp/build_8db0b26a8a57a805bbbf230bff23e793/config/webpacker.yml file for setting up webpack paths
Compiling…
Compilation failed:
node[6689]: ../src/node_file.cc:943:void node::fs::Stat(const v8::FunctionCallbackInfo<v8::Value>&): Assertion `(argc) == (4)' failed.
1: 0x8daaa0 node::Abort() [node]
2: 0x8dab75 [node]
3: 0x91abea [node]
4: 0xb5faef [node]
5: 0xb60659 v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*) [node]
6: 0x1fd8ea3dbe1d
!
! Precompiling assets failed.
!
! Push rejected, failed to compile Ruby app.
! Push failed
答案 0 :(得分：0)
似乎Heroku的节点buildpack已默认升级为使用节点10： https://github.com/heroku/heroku-buildpack-nodejs/commit/4cf68e4e63698cdb56ee18737533482d99d25a74）。
如果未按照此处https://github.com/heroku/heroku-buildpack-nodejs/commit/4cf68e4e63698cdb56ee18737533482d99d25a74的指示在package.json中指定节点版本，则它可能开始使用节点10，而以前使用的是节点8。在package.json中将节点版本指定为8应该可以解决问题（并且可能开始着手升级您的应用程序以使其与节点10兼容）。