错误404 Ionic Deploy Impl http：//localhost/plugins/cordova-plugin-ionic/dist/common.js

Question

我已经构建了Ionic 4应用程序。一切正常，但是每当我从Android设备在Chrome调试窗口中启动应用程序时，都会收到以下错误：

Failed to load resource: the server responded with a status of 404 ()
polyfills.js:3040 Unhandled Promise rejection: Error Status 404: App not found ; Zone: <root> ; Task: Promise.then ; Value: Error: Error Status 404: App not found
    at IonicDeployImpl.<anonymous> (/plugins/cordova-plugin-ionic/dist/common.js:291)
    at step (/plugins/cordova-plugin-ionic/dist/common.js:37)
    at Object.next (/plugins/cordova-plugin-ionic/dist/common.js:18)
    at fulfilled (/plugins/cordova-plugin-ionic/dist/common.js:9)
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (polyfills.js:2749)
    at Zone.push../node_modules/zone.js/dist/zone.js.Zone.run (polyfills.js:2508)
    at polyfills.js:3247
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (polyfills.js:2781)
    at Zone.push../node_modules/zone.js/dist/zone.js.Zone.runTask (polyfills.js:2553)
    at drainMicroTaskQueue (polyfills.js:2959) Error: Error Status 404: App not found
    at IonicDeployImpl.<anonymous> (http://localhost/plugins/cordova-plugin-ionic/dist/common.js:291:35)
    at step (http://localhost/plugins/cordova-plugin-ionic/dist/common.js:37:23)
    at Object.next (http://localhost/plugins/cordova-plugin-ionic/dist/common.js:18:53)
    at fulfilled (http://localhost/plugins/cordova-plugin-ionic/dist/common.js:9:58)
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (http://localhost/polyfills.js:2749:26)
    at Zone.push../node_modules/zone.js/dist/zone.js.Zone.run (http://localhost/polyfills.js:2508:43)
    at http://localhost/polyfills.js:3247:34
    at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (http://localhost/polyfills.js:2781:31)
    at Zone.push../node_modules/zone.js/dist/zone.js.Zone.runTask (http://localhost/polyfills.js:2553:47)
    at drainMicroTaskQueue (http://localhost/polyfills.js:2959:35)
api.onUnhandledError @ polyfills.js:3040

我什至不确定是否会引起任何问题。我唯一真正的问题是，当我使用Google身份验证时，大约需要3分钟才能对用户进行身份验证。但是，这是使用Facebook的正常时间。

任何帮助将不胜感激。目前，我已经在Google上进行了彻底搜索，以寻求有关此问题的帮助。

Answer 1

看起来构建成功，但是某些插件引起了错误。

首先，安装最新的应用程序脚本：

npm install @ionic/app-scripts@latest --save-dev

应用脚本负责执行实际的构建任务，例如：

• 并行执行多核处理任务以加快构建速度
• 内存中文件转译和捆绑
• 将源代码移植到ES5JavaScript

然后，删除node_modules和插件文件夹，然后再次运行“ npm install”命令。