盡管模塊存在於賽普拉斯中，但在啟動測試時找不到模塊“fs-extra”錯誤

Question

剛遇到這個問題。 啟動我的測試后，此錯誤出現在 cypress 上下文 window 中。

 Can't start server

The plugins file is missing or invalid.

Your pluginsFile is set to /Users/alexanderti/WebstormProjects/klickly-autotests-js/cypress/plugins/index.js, but either the file is missing, it contains a syntax error, or threw an error when required. The pluginsFile must be a .js or .coffee file.

Please fix this, or set pluginsFile to false if a plugins file is not necessary for your project.

Error: Cannot find module 'fs-extra'
    at Function.Module._resolveFilename (module.js:543:15)
    at Function.Module._load (module.js:473:25)
    at Module.require (module.js:586:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/Users/alexanderti/WebstormProjects/klickly-autotests-js/cypress/plugins/index.js:51:12)
    at Object.<anonymous> (/Users/alexanderti/WebstormProjects/klickly-autotests-js/cypress/plugins/index.js:165:3)
    at Module._compile (module.js:642:30)
    at Object.Module._extensions..js (module.js:653:10)
    at Module.load (module.js:561:32)
    at tryModuleLoad (module.js:504:12)
    at Function.Module._load (module.js:496:3)
    at Module.require (module.js:586:17)
    at require (internal/module.js:11:18)
    at module.exports (/Users/alexanderti/Library/Caches/Cypress/3.4.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/run_plugins.js:118:15)
    at Object.<anonymous> (/Users/alexanderti/Library/Caches/Cypress/3.4.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/index.js:9:25)
    at Object.<anonymous> (/Users/alexanderti/Library/Caches/Cypress/3.4.0/Cypress.app/Contents/Resources/app/packages/server/lib/plugins/child/index.js:11:3)
    at Module._compile (module.js:642:30)
    at Object.Module._extensions..js (module.js:653:10)
    at Module.load (module.js:561:32)
    at tryModuleLoad (module.js:504:12)
    at Function.Module._load (module.js:496:3)
    at Function.Module.runMain (module.js:683:10)
    at startup (bootstrap_node.js:196:16)
    at bootstrap_node.js:622:3

一切正常，直到我通過 Webstorm 中的 UI 提示意外在 package.json 中安裝了 fs-exta 模塊，然后將其卸載。 還刪除了./node_modules 並重新安裝。 但錯誤仍然存在。

我已經通過 npm ls fs-extra 檢查了模塊的可用性，它顯示它存在

─┬ cypress@3.4.0
│ └── fs-extra@5.0.0 
├─┬ mochawesome-merge@2.1.0
│ └── fs-extra@7.0.1 
└─┬ mochawesome-report-generator@4.1.0
  └── fs-extra@7.0.1 

Answer 1

只需將此添加到您的 package.json 中：

"browser": {
    "fs": false
  }

為我解決了這個問題。 我還添加了兩個以避免更多問題：

"browser": {
    "fs": false,
    "path": false,
    "os": false
  }

Answer 2

通過重新安裝 node_modules 目錄但刪除了 package-lock.json 來修復，可能正因為如此，它正在尋找舊版本。 現在已修復

Answer 3

是那種解決方案嗎？ https://github.com/cypress-io/cypress/issues/21615#issuecomment-1170103810

• 步驟1

刪除緩存

• 第2步

重新安裝柏樹

• 我成功獲得了舊版本