Ember 构建错误：EEXIST：文件已存在

如何解决Ember 构建错误：EEXIST：文件已存在

我正在尝试更新一个两年未部署的 Ember/Ruby on Rails 项目（它在生产环境中仍然运行良好，但新的部署失败了）。

我已经更新了 Ruby on Rails 部分，但我对 Ember 不太熟悉并且正在挣扎，目前卡在这个错误上：

Build Error (TemplateCompiler)

EEXIST: file already exists,symlink '/var/folders/8m/vxpf7qd11fg7gn7ps0dyx_pc0000gn/T/broccoli-92657dOMHa3WeZnd7/out-335-funnel_funnel_ember_bootstrap_addon/ember-bootstrap/components/bs-accordion.js' -> '/var/folders/8m/vxpf7qd11fg7gn7ps0dyx_pc0000gn/T/broccoli-92657dOMHa3WeZnd7/out-336-template_compiler/ember-bootstrap/components/bs-accordion.js'

我在网上发现了类似的错误，但没有一个建议的修复对我有用。我有最新版本的 bootstrap、ember-bootstrap、broccoli-asset-rev 和 ember-cli。错误中提到的文件不是来自我的项目，据我所知它们来自 ember-bootstrap 包。

package.json 内的当前 app-ember：

{
  "name": "app-ember","version": "0.0.0","private": true,"description": "Small description for app-ember goes here","repository": "","license": "MIT","author": "","directories": {
    "doc": "doc","test": "tests"
  },"scripts": {
    "build": "ember build","lint:hbs": "ember-template-lint .","lint:js": "eslint .","start": "ember serve","test": "COVERAGE=true ember test && rm coverage/coverage-summary.json && nyc check-coverage","debug-test": "ember test --server"
  },"devDependencies": {
    "@ember/jquery": "^0.5.2","@ember/optional-features": "^0.6.3","active-model-adapter": "^2.2.0","bootstrap": "^5.0.2","broccoli-asset-rev": "^3.0.0","ember-ajax": "^4.0.1","ember-bootstrap": "^4.9.0","ember-bootstrap-controls": "github:clevercase/ember-bootstrap-controls#v3.0.0","ember-can": "^1.1.1","ember-cli": "^3.27.0","ember-cli-app-version": "^3.2.0","ember-cli-babel": "^7.1.2","ember-cli-code-coverage": "github:kategengler/ember-cli-code-coverage#v1.0.0-beta.8","ember-cli-dependency-checker": "^3.2.0","ember-cli-eslint": "^4.2.3","ember-cli-htmlbars": "^4.3.1","ember-cli-inject-live-reload": "^1.8.2","ember-cli-moment-shim": "^3.7.1","ember-cli-pretender": "^3.2.0","ember-cli-rails-addon": "^0.10.0","ember-cli-sass": "^10.0.1","ember-cli-sri": "^2.1.1","ember-cli-template-lint": "^2.0.2","ember-cli-uglify": "^2.1.0","ember-concurrency": "^0.9.0","ember-data": "~3.14.0","ember-data-change-tracker": "^0.8.0","ember-export-application-global": "^2.0.1","ember-freestyle": "^0.11.10","ember-load-initializers": "^1.1.0","ember-maybe-import-regenerator": "^0.1.6","ember-moment": "^7.8.1","ember-notify": "^5.3.0","ember-percy": "^1.6.0","ember-power-calendar": "^0.13.3","ember-power-calendar-moment": "^0.1.7","ember-print-this": "^1.0.0","ember-qunit": "^3.4.1","ember-resolver": "^5.3.0","ember-route-action-helper": "^2.0.8","ember-simple-auth": "^1.9.2","ember-source": "^3.8.3","ember-spreadsheet-export": "^0.4.0","ember-steps": "^8.0.2","ember-welcome-page": "^3.2.0","eslint-plugin-ember": "^5.2.0","loader.js": "^4.7.0","lolex": "^3.1.0","nyc": "^15.1.0","popper.js": "^1.16.1","qunit-dom": "^0.8.5"
  },"engines": {
    "node": "6.* || 8.* || >= 10.*"
  }
}

编辑：这在本地和 Heroku 上都失败并出现相同的错误。